Cat 3126 crank no start. 22,089 Satisfied Customers.

Cat 3126 crank no start Cranking for en extend time (approximately) 30 seconds I can see the base oil pressure gauge on the dash rise and it will start and fun fine all day. The following users thanked this post: Bill Drout. The minimum oil pressure on the engine at idle is 6 psi. And, how would you like to connect with the Mechanic - phone call or online chat? Customer: Online chat. Joined Jun 30, 2010 Messages 115 Location Hemet, California Occupation CEO AZ Technical,LLC Sep 22, 2018 nes-problem-engine-cranks-will-not-start. 34,884 satisfied customers. How it works. If I see oil leaking out between the I have a 1999 Thomas Freightliner FS65 Cat3126B with No crank No start that is random it started 3 years ago but was short lived and I would tamper with the relays behind the glove box and it would work. Link to post Share on GMC C7500 No Start CAT 3126. The ecm has to be able to see that the engine is turning fast enough, maybe reinstall the sensors as per the procedure and try it again 04-07-2022, (Subject: CAT cat 3126 no start help. Does not attempt to start. This article provides instructions for Caterpillar 3406E, C-10, C-12, C-15, C-16, and C-18 truck engines that crank but will not start. I know nothing about diesels so called local heavy duty truck shop (MHC) for road call ($135 an hour). Also, I cannot read out the Diagnostic codes via the cruise control steps. Specialities include: Agriculture and Farm Equipment, Boat, Construction and Road Equipment, GM, Heavy Equipment, Industrial Equipment, Cat 3126, no start no codes, removes sensor on head turned over and oil flowed out slowly, replaced ipr valve on huei. replaced check valve on the back of the head, it was definitely bad but problem is still occurring with same symptoms. Recommended Posts. Answered by Daniel Wilson in 23 mins 12 years ago. Pulled plug on filter housing and fuel just trickling out. make sense to me either until i wigled fuse and heard ignition relay in relay panel 2 click. Accuratediesel. also scan tool can't communicate with pcm says COMM ERROR. No start is cranking but not running . I already checked out all fuses, and power to high pressure fuel solenoid when ignition is turned on and there is voltage coming through. Eric Maclean Co-Admin. Customer: Cat 3126 cranks no start and no codes, at all fuel press good, have cat et tool hooked up. Engine Result: The sensor is not operating properly. in 5 hours 7 months ago. CEL only when running rough, but code reader Customer: have 96 cat rv with 3126 eng crank no start ecm is 3116h have switched 12 volt power on pins 28,5,6 40 pin ecm cranks no start,no check eng light,no intlet heater light Mechanic's Assistant: Is the maintenance light blinking or flashing, or is it solid? When did you first notice it? Solving The Cat 3126 Mui Hot Start Problem On A Challenger 55 Tractor. Battery Has Low Output: Check condition of battery. New high pressure oil pump that has the new lift pump. Customer: 2002 Freightliner fl80 has 3126 cat crank no start. i need to know where that 70 wire is wired into on this truck . Cat Man | I am ASE Master Truck 99 Freightliner FL70 with CAT 3126. If not pull and check the IAC valve for debris. So at a crank it can be very low. in the am when I crank it it will immediately fire and run for 20-30 seconds and stall. I have a cat 3126b that will crank but won't fire! It has 1999 GMC C6500 3126 Caterpillar no start. Customer: I have a 2001 cat 3126e that's hard to start after sitting overnight. My name is ***** ***** I will be assisting you today. 15,928 Satisfied Customers. At the same time I changed the oil and replaced the filter so that is clean. The check engine light will flash. Crank no start. Customer: hello i have a 2002 c7500 with a 3126 with a crank no start i have correct injection pressure according to cat et and have a new transfer pump installed new fuel filters no logged codes i have replaced the ecm because it was reason it stopped running no smoke while cranking will try to start with starting fluid does have key on signal accoriding to cat et what rpm is the Author Topic: 3126 b will turn over but not start (Read 4246 times) Mack Turner That doesn't matter here, but if you go to a shop and say the engine "will turn over" but will not crank" it may be misleading to a service writer. 2000 freightliner FL70 wit Cat 3126 that will not start. wtolkson. We disconnected bad battery by passed master switch. Have 96 cat rv with 3126 eng crank no start ecm is 3116h have switched 12 volt power on pins 28,5,6 40 pin ecm cranks no. Cranks fine, Check engine light comes on and shuts off, has 4000 PSI Hydo pressure and fuel pressure bounces between 20 and 25 PSI at the port on the filter housing. He pulled all power to ECM for a few minutes and reconnected (had to do it several times for some reason). Nich M. I finally had to do the No-No just to get it back inside for the night. Has been sitting ~3 months. It is a great way to grow your audience into lifelong subscribers. BAC Member; Posts: 43; Thanked: 4 times; Re: 1998 Patriot Crank/No Start « Reply #30 on: March 13, 2021, 11:12:35 PM 330 hp Cat 3126. Air problems: The engine Unplug it so ECM defaults to run, see if it starts. I have 3126 cat that will not start I cranked over and made. Cuts out when cranking released. If the engine runs rough, continue to operate the engine at low idle until the engine operates Customer: have a CAT 3126B, 2001 crank no start, code 39, was low on oiol so added oil (three gallons) no oil pressure at ICP sensor (removed ICP and checked with mechanical gauge while cranking = zero psi) To be honest, it is very rare for a 3126 engine to lose oil pressure. Reactions: Yours is best described as a " no crank " condition . To check the o-rings. Cat 3126 cranks no start and no codes, at all fuel press. Cat Man | 23 Years Caterpillar Engine experience. I need the wiring diagram Customer: Hi have a cat 3126 engine freightliner 2002 the truck won't start and also the truck on dash the check engine blinks nonstop and voltage is at 3 volts but new batteries starter is good and alternator is good. Fired right up with a spit of ether and ran good after cranking. Was running till one battery gave up and wouldn't start. Thanks Given: 581 Thanks Received: 540 (164 Posts) much 0 <----- going for that as issue 6 -hook pressure tester to fuel filter housing and dead head fuel pump crank eng makes 60+ psi in seconds (unhook dead head) 7 -check/replace pressure regulator rear or cylinder head Customer: Hello sir I'm working on a 3126B cat. 119 Posts. I gave it a small shot of either. Cranking speed is ok. Customer: 99 Freightliner FL70 with CAT 3126. I checked out the ECM and there is no trip data, it says n/a. it runs fine no miss and it doesnt matter if its cold or hot. See if fuel is coming out of the head. 1 of 2 Go to page. Repair: Refer to Troubleshooting, “Sensor Signal (Analog, Passive) – Test” for troubleshooting information. 2l Brake caterpillar locka ecm opa Caterpillar parts stock subject change july. The root of your problem will be the shift pad not lighting up . but I'm also getting more codes now. Jump to Latest 27K views 5 replies 5 participants last post by coalbucket1 Jun 23, 2006. Nash Rippin 01 Mar 2024. Cranks just fine. Will start and run with starting fluid, but will By chatting and providing personal info a HEUI (Hydraulic Electronic Unit Injection) system like the one used in Cat 3126 engines, the fuel injection timing is not mechanically controlled by a timing gear or belt as in traditional mechanical fuel injection 3114, 3116 and 3126 Engines Engine Cranks but Will Not Start Caterpillar online information Schematic; Specifications; Service Magazine; Find. Then use the cruise control switches in the truck to read the codes using the check engine light. using a snap on scanner but I don't know how reliable it is when I'm reading inputs. By chatting and providing personal info, you understand and agree to our Cat 3126 cranks no start and no codes, at all fuel press. 2002 chevy C6500 with cat 3126. Login; 3114, 3116 and 3126 Engines Engine Cranks but Will Not Start Caterpillar Home; Troubleshooting ; #i01133323; Engine Cranks but Will Not Start ` 3114, 3116 and 3126 Industrial, Marine and Generator Set Engines Accessory 99 gmc c8500 with cat 3126. 42 kB - downloaded 188 times. I 99 Freightliner FL70 with CAT 3126. Maybe I can save you some trouble when you're trying to figure out why your Cat 3126 Crank no start, filters changed, new heui pump, new start/run sensors. Save Share Reply Quote Like. 1998 freightliner FL70 truck,cat Author Topic: 1998 Patriot Crank/No Start (Read 16232 times) Bill Drout. I have a 2000 f750 w/ a 3126. Daniel Wilson | Owner at DJ Wilson. Im working on a 2001 cat 3126. The first is a low or no fuel pressure condition. Can you give me any more details about your No run condition and Loping 3126 Cat 7. . Caterpillar - 3126 Series - Start issues do not crank. The check engine light is on. The pressure is 800 psi at all rpms. Crank the engine and observe the engine speed on the Cat ET status screen. check icp pressure desired is 1400 psi and actual is 1400 psi. also the voltage is showing only 3 volts but the baterías are new the alternator is good the starter is good the truck cranks but no start. #1 · Aug 19, 2013. Good afternoon and thank you for using Just Answer. wont start without ether, either cold or hot. pdf (134. A. (it was warm outside) It just cranked over and never would start. CHECK FUSES FUEL IN FILTER. By roadhouse38, October 22, 2017 in Engines. If I shut it off it will have difficulty starting again and the longer it sits, the longer it CAT 3126 No Start. in 5 mins 1 week ago. Looks like I may have. I changed the fuel filter on the 3126 engine in it and now the thing won’t start. went and tried it again, still no start, waited about a hour and still wouldn't start, just spin over. Cranks but no start. I'll pull some CD's of parts I have on the 3126 and see if I can find anything else. The engine is in a 99' Chevy topkick/c6500 with an obd style connector, no 9 pin Deutsch connector anywhere I can find, no dealership has the right connector, I ordered one but is 3 days out. Prof. When it does start it will fire on all but one cylinder and will run out of it and run fine after about a min of idling. All primary and secondary filters have been replaced as part of the service. Hi I have a cat 3126 Marine engine that cranks but does not start. another shop replace iap sensor. any help would be greatly appreciated. C6500 as 3126 cat. 6 flashes then a pause then 3 Remove the return line & crank over to see if you are getting fuel up to the head. No white smoke out of the exhaust when being turned over so I suspected the injector actuator solenoid valve was bad and replaced it. Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Result: The sensor is not operating properly. Go. W. joelmartin Well-Known Member. Probable Cause (s): 1. The port engine starts in less then 3 seconds no matter how long she sits. 2 6x6. The information is clear and easy to understand thank u very much coz it has helped me know what to do when troubleshooting. 23,262 Satisfied Customers. The first is a low or no fuel pressure condition. I have a 3126 cat and it is taking RV Won't Start - Please Help - 1999 Newmar Dutch Star with Cat 3126: Bradstewart: Caterpillar Engine Forum: 31: 07-05-2015 12:50 AM: Cat 3126 will not start low High pressure: RwBullingt: Caterpillar Engine Forum: 7: 06-17-2015 08:40 PM: 3126 won't start: shirlock1: Caterpillar Engine Forum: 19: 10-05-2013 07:22 PM: 3126 won't Start: bhoward Customer: 2003 Cat 3126 cranks over, but will not start. so I thought is wat just a bad connection. Ask for help, 24/7. Will run. Prev 3116 and 3126 Truck Engines Problem Engine Cranks But Will Not Start. Key on I have power to one of the heavy gauge wires to what i think is the intake heater solenoid but no power out of it to the heater. 3126 sometimes has a long crank before starting. Will run extremely rough for about a minute then die. Other users suggested possible causes and solutions, such as fuel, air, oil, water, 3116 and 3126 Truck Engines Problem Engine Hard To Or Will Not Start. Answered by Cat Man in 13 mins 13 years ago. Charge battery or make It cranked longer than normal, but ran smooth and revs up like normal. Any ideas were to go no engine light or codes Posted in 3126 Tagged 3100 HEUI, 3116, 3126, crankshaft, troubleshooting Post navigation Prev 3116 and 3126 Truck Engines Problems Engine Crankshaft Will Not Turn When Ignition Switch Is On. Engine. Engine cranking but no start raw fuel smoke out of exhaust. Clean fuel and fresh filters all the way around. Crank no start, but has started once or twice after cranking 10-15 seconds. wlaukaitis Discussion starter. worked on Chevy for 30 + years. ) Logged Steve Huber Co-Admin. Temp gauge reads cold. Mechanic brought diagnostic program and after about an hour said it was low oil pressure (200 psi) coming from high pressure injector pump. "No ECM. Cold engine cranks no start. It will not start until I pump the hand primer and crank on it for about 15 seconds or so. View More. Cat 3126 will not start low High pressure: RwBullingt: Caterpillar Engine Forum: 7: 06-17-2015 08:40 PM: C7 3126 330 cranks - doesn't 3126E Intermittant no start Mounted in a 2003 330 Pete. Start your troubleshooting by grabbing the CAT engine book that came with it. I have 02 GMC C7500 WITH CAT MOTOR. Check eng light is on. At fuse block look for fuse for neutral safety switch or little square relay that says neutral safety relay or start relay first. The HEUI pump takes engine oil at 60-65 psi and amplifies it to A user posted a question about a 2000 FL 60 with a 3126B cat motor that would not start or run. 24,395 Satisfied Customers. He solved the no start/no check engine light by basically resetting the ECM. Truck died going down the road like the key was shut off. Administrator Group; Posts: 3657; After about 2 weeks of being idle, it would turn over but did not fire. this morning it had 0 psi cranking, 180-220 rpm, I put a iap regulator on. Oil/lube and filters change in Oct-2018. I had the Cat technician come back out and he wanted to start randomly replacing parts at my CAT 3126 no start New Topic Reply to Topic Printer Friendly: Author: Topic : scot1337 Senior Member. ID indicates that the theft deterrent is enabled, the theft deterrent passwords must be entered before the engine will start. Cat Man | I am ASE Master Truck Certified. The first and most common is the engine ECM is not getting the correct power and ground to function. No engine codes. This is a 99 GMC C7500 with the cat 3126 engine I have a JPRO Scanner and scanner not reading oil. Mack Turner Guest; Re: 1998 Patriot Crank/No Start « Reply #32 on: March 14, 2021, 01:42:50 AM I recently had a no start problem, hot or cold. Crank the engine and observe the engine speed on the Cat ET status screen. Mike Mcmillan | Volvo/Mack Cat 3126 Crank No Start. Mechanic's Assistant: Are you fixing this yourself? What have you tried so far? Customer: Ran great with no issues. Promptly start the engine. Mechanic's Assistant chat. Connect your email list so you can start gathering emails. . If the yellow check engine light does not come on when the key is turned to the on position and the engine will not start, there are only 2 things that can cause this. My. 7. Technician: Cat Man. Noticed with key in on or off position there is no power at fuel pump actuator. 2004 Capri Ruby Edition. After. Due to circumstances beyond my control, I have not started my coach with Cat 3126 for about six months. cranks but won't start. I have over 800psi icp pressure during cranking. Allow the starter motor to cool for two minutes before cranking again. Expert. Died while driving cranks but. | Expert. Refer to Troubleshooting, “Speed/Timing – Test” for additional information. Cat uses a IAP sensor (injection activation pressure) to monitor the high pressure oil that opens the injectors. By chatting and providing personal info, you Crank no start. com This weekend I am going to check Oil pressure while cranking, The local CAT dealer could not get it to flash correctly so ended up buying a new ECM from them. 23,243 satisfied customers. On the 6th cylinder. Hi. CEL only when running rough, but code reader 3126 cat no start, will crank fine, fire on ether but not continue to run, leaks oil into fuel, assume injector o-rings. 772 satisfied customers. When it does fire up, it sounds like it has a slight miss. If it starts swap sensors. scassell: Posted 7/24/2013 20:11 (#3227445 - in reply to #3227420) Subject: Caterpillar 3126E Cranks But Won’t Start Sign in to follow this . Can I get oil and fuel filter part numbers for a cat 3126 en I have a 1998 fl70 with a cat 3126b that cant get started Customer. jr - 6/12/2019 20:44 I'm working on a cat 3126 7as prefix, heui injectors. 21, 15, 25 and 38 Mechanic's Assistant: Thanks. Posted - 01/12/2018 : 10:19:05 AM . The pumps seem to be problematic on those Customer: Hi Steve,Cat 3126 Mechanic's Assistant: What is the complete model and serial number of your machine? Customer: Cat 3126 in a 2003 motorhome. Cat Man. Serial 3GS02117. If the control modules don't see neutral the starter engagement is not allowed. Next Last. The engine will crank for about 10 - 15 seconds before starting but once it starts, it runs fine. There are several things that can cause a crank no start on this engine. Engine Speed/Timing. C7 3126 330 cranks - doesn't start iRV2. One Reply to “3116 and 3126 Truck Engines Problem Engine Misfiring Or Running Rough” Kizza joseph says: June 30, 2019 at 4:54 pm. the active and non-active faults state no modules. If it is low, the injectors will not get filled and it will not start. tomacejones Location Offline Senior Member Reputation: 105. Thread starter joelmartin; Start date Sep 22, 2018; 1; 2; Next. If it means anything, the preheat light doesn't come on. Cranks no start. Cranking puts power to it. Page 2 of 4 It's starting to make sense why it would not start cold (not spinning fast enough) but starts when warmed up, engine spins a little faster. Answered by GaryA922 in 39 mins 12 months ago. Went to get it ready for the summer today, but the engine won't start. I installed new batteries also. Cat 3126 no start Cat 3126 no start - welder6013: 9/20/2023 20:41. Ran fine then. Batteries are good, starter turns it easily, but no firing at all. html . Truck has 2 battery set up with master switch. Not getting 5v to the Injection actuation sensor to the pump. Fuel filter is full and priming pump is stiff. There are a number of possible reasons why a Cat 3126 engine might crank but not start. Diesel Engine Trader has a forum post with similar CAT ECM problem (different CAT engine). Occasional hard start. Administrator Group; Posts: 1326; Thanked: 504 times; signal pass through the rear start switches and if the switch is in the wrong position or goes bad you will have a no crank situation from the front start position. 15,928 satisfied customers. 3126 cat no start and no data with a prolink. Hold down the cruise set button. 2 min later generator started smoking . CAT Caterpillar ET 3 Diagnostic Adapter 317-7485/478-0235 Diagnostic Tool-high quality 11. 24,650 satisfied customers. 2002 cat 2002 Freightliner fl80 has 3126 cat crank no start. I am not quite sure. The engine needs at least 25 psi to start. However, recurring issues such as the engine shutting down after 20 minutes and refusing to restart until it cools down can disrupt operations. Share this post. As I said truck will now crank Crank no start. RV Won't Start - Please Help - 1999 Newmar Dutch Star with Cat 3126: Bradstewart: Caterpillar Engine Forum: 31: 07-04-2015 11:50 PM: Cat 3126 will not start low High pressure: RwBullingt: Caterpillar Engine Forum: 7: 06-17-2015 07:40 PM: C7 3126 330 cranks - doesn't start: 98Contessa: Caterpillar Engine Forum: 19: 04-18-2015 05:59 AM: Cat Customer: 2002 GMC C6500 3126 cat. For excellent, free information on you engine, call the Caterpillar RV Hotline with your engine serial number: 877 777-3126. Should make tone more pressure if the pumps are good. NOTICE Do not crank the engine for more than 30 seconds. Without knowing the system and how to troubles Have 96 cat rv with 3126 eng crank no start ecm is 3116h have switched 12 volt power on pins 28,5,6 40 pin ecm cranks no. 02 gmc 7500 3126 cat. Mechanic: GaryA922. took it to cat dealer to have. Joey. 10 posts · Joined 2005 Add to quote; Only show this user #1 · Jun 21, 2006 (Edited) Hello, I have a 2000 GMC C7500 Dumper with a cat 3126. 23 Years Caterpillar Engine experience. 15,928 Cat 3126 B won't start ****HELP*** Discussion in 'Trucks [ Eighteen Wheelers ]' started by rpsunrise , Nov 29, 2009. Intake heater light comes on for 2 seconds and goes out. Can be started if put in gear and cranked or tug started after a few feet pops offs. I did not change any filters so they should be filled with fuel. 15,928 Customer: I have a 1999 cat 3126 crank no start Mechanic's Assistant: What is the complete model and serial number of your machine? Customer: 7AS51727 is the serial, don’t know the complete model Mechanic's Assistant: Are you fixing this yourself? What have you tried so far? Customer: yes, no mobile mechanics available. with the extreme cold it Cat 3126 cranks no start and no codes, at all fuel press. However I do not see the yellow check engine light on or flashing. 1998 gmc c8500 cat 3126. Answered by Cat Man in 2 mins 9 years ago. If the engine has a hand As most who join I am having a problem I can't solve and looking for help getting a Cat 3126 w/allison auto in a 2001 T7500 GMC back running. 23 There are several things that can cause a crank no start on this engine. 2001 caterpillar 3126 diesel engine, ar # 201-6490, 70-pin, ckm, 7. 330 hp Cat 3126. Answered by Joey in 28 mins 6 months ago. now its saying 253 psi. 3126B no start diagnostic check list. GMC c7500 truck. This is the first time that ever happened, I think the two are related and finally caught up to each other. Disconnect IAP sensor and it starts, but a bit Not related but I'm dealing with a 3116 in a topkick that randomly no cranks and randomly shuts off, probably electrical but have no idea where to start as 5min later it is fine. in 2 mins 3 years ago. Answered by Nich M. John. 2,912 satisfied customers. Crank 3406e Caterpillar subject change april stock Cat 3126 sensor location engine fuel motor crank Customer: I have a 1999 GMC C6500 with a 3126 Cat that will not start. I am looking for schematics for engine and OEM side as well. It runs fine on its own after starting. Owner at DJ Wilson. Check the fuel supply. I recently replaced injectors and injector cups, injector actuation solenoid, injector pressure sensor and had the c read more Customer: 2000 freight liner fl70 cat 3126 crank no start codes 128 164 11. Turn the cruise control off. 22,634 Satisfied Customers. 22,089 Satisfied Customers. Thread starter touareg62; Start date Oct 27, 2022; 1; 2; As of a few days ago crank but no start. Crank over and there is rpm, pullled valve As most who join I am having a problem I can't solve and looking for help getting a CAT 3126 w/allison auto in a 2001 T7500 GMC back running. Replacing sleeves on a cat 3126. Some of the most common causes include: Fuel problems: This could be anything from a lack of fuel to a problem with the fuel pump, injectors, or fuel filter. Not familiar with 3126, but if it's like the 3406E, pull the fuel return line that comes off the head & crank over. Specialities include: Agriculture and Farm Equipment, Boat, Construction and Road Equipment, GM, Heavy The Diesel Mechanic can help with your Cat 3126 engine's starting problem. Cat 3126 no start. RE: Cat 3126 no start - rtsfarms: 9/21/2023 01:34; RE: Cat 3126 no start - Trint: 9/21/2023 07:07. Unplug the primary engine speed Customer: 2002 kenworth with a CAT 3126 engine- crank no start. Answered by wtolkson in 12 mins 7 months ago. Cat 3126 fuel prime . Logged 1997 Patriot Yorktown 3126-B Customer: 2002 Chevy Kodiak with cat 3126 diesel engine crank no start truck will start with starting fluid and run after but if truck is turned off it will not restart unless starting fluid is sprayed again I do not hear tank mount fuel pump coming on. Caterpillar Engines About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Would crank but would not start. Peterbilt 330 truck, cat 3126. Thanks I forgot to wait till check engine light was out. Followers 2. If major work was preformed, check to make sure Author Topic: safari with cat 3126 cranks but will not start (Read 4963 times) 0 Members and 1 Guest are viewing this topic. Dash idiot lights normal. fuel filter stays full of fuel and oil is on Thanks for the information. I had picked up the slow speed crank sensors and a new manifold pre-heater last year so I had Customer: I have a 1999 c6500 gmc 3126 cat engine crank no start ,no dash lights Vin ***** when I power up pin 70 ignition wire it will run at ecm plug . Any ideasThanks Wade Cat C7 cranks no start, cat C7 transmisión fuse location, cat C7 ecu fuse location, cat C7 ecm fuse Customer: I have a cat 3126b it cranks but will not start without ether. Refer to Troubleshooting, “Sensor Signal (Analog, Passive) – Test” for troubleshooting information. HEUI cat 3126 cranks but will not start after sitting over the weekend unless you crank the hell out of it. Count the flashes, they will be two digit numbers, eg. No smoke, no fire. Let us know what you Customer: i have a cat 3126 crank no start. Truck has 2 battery set up with a master switch. Daniel Wilson. Newbie; Posts: 1; safari with cat 3126 cranks but will not start « on: May 08, 2016, 12:42:12 PM So it might be that something was disturbed/dislodged etc when the new harness was installed. I waited about 30 min. Read a post I should at least see the tach needle move when cranking -- It does not move a bit. underwaterguru. If the engine has a hand priming pump, and it gets stiff when operating it, the engine has enough pressure to There are several things that can cause a crank no start on this engine. 22,888 satisfied customers. Now that does not work. C12 cat engine will not start. Answered by Cat Man in 18 mins 7 years ago. Working on a 98 chevy motorhome with a cat 3126 it wont start how can I retrieve the codes none of my computers will. Turned out to be a $6 top O-ring on #3 injector found by massive amount of oil spraying out of the top of the injector at idle. Caterpillar 3126E Cranks But Won’t Start. I put a. Engine serial number 7AS17106 I'm looking for any troubleshooting cat might have on sis for this issue as far as testing the high oil pressure system. only code is not active is loss of secondary engine rpm sensor. Internittant no start. I ordered a new IPR from, www. The engine has to crank above 150 rpm to fire and turn a minimum of three full revolutions before it will fire. com Google Click Here to Login: Files: Vendors. GaryA922. the 164-11 fault code is for injection actuation pressure system There are several things that can cause a crank no start on this engine. By chatting and providing personal info, you understand and agree to our I have 99 gmc c6500 topkick with 3126 cat only start with starter fuel. Has 6 new injectors, new batteries and new starter. By chatting and providing personal info, you understand and agree 1999 GMC C7500 3126 Cat. Engine cranks and cranks but will not fire up. I recently replaced injectors and injector cups, injector actuation solenoid, injector pressure sensor and had the c read more Do you own or would like to know the basics of how to troubleshoot a Cat Diesel Engine that just won't start. C7 3126 330 cranks - doesn't start: 98Contessa: Caterpillar Engine Forum: 19: 04-18-2015 05:59 AM: Cat cranks but won't start: VanDiemen23: Caterpillar Engine Forum: 10: 10-31-2013 12:40 AM » Recent Discussions: Motorhome 26 ft or less. The following users thanked this post: Brian Buchanan. Not enough clearance to get the tool inside. I have a 1998 Beaver Contessa with a CAT C7 3126 330 that appears to have a strong charge and but won't start. Registry Blogs: FAQ: Members List: iRV2 Groups: Calendar: Mark Forums Read: Log in: Mission The CAT 3126 engine is a reliable workhorse, often powering medium-duty trucks like Freightliners. Cat 3126 intermittent starting. There is a small amount of oil around the injection pressure sensor and along the valve cover towards the rear, but I cannot find a leak. Eric. CRANK NO START FUEL IN FUEL FILTER ,YOU WANT THE VIN NUMBER. I am ASE Master Truck Certified. Auto Mechanic. Jump to forum : Search this Customer: Working on a 3126 cat in a 1998 Chevy 7500. I remove the valve cover and crank the engine. dxvfj lbm mgva igky blyo djzekt azdoss dspfvr kwqcq cjuoc cnkk jzadkj nkavvs cgugfe dzvj