Question about 1998 GMC Jimmy

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My jimmy will turn over but it will not catch have changed the ignition module then the crank shaft censor then the computer (ecm)still not working now what do i do ???

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Hi
did you check the injector and the solinoid which energises when you turn your key to on position..??
check it if this solinoid is not getting energised then there will not be any flow of fuel to the injector for firing. check thi solinoid

if my answer were useful please vote for me

Posted on Jul 11, 2010

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1 Answer

Where do I find the 2008 Buick Enclave neutral safety switch


It's called a Manual Shift Detent (w/Shaft Position Switch) Lever Assembly. And it's inside the transmission .
What problem are you having ? No crank , when you turn the ignition switch to the start position nothing happens ? No click ,nothing ? If your think of just replacing the switch ,stop , did you have it diagnosed ? This starting system is computer controlled .
When the ignition switch is placed in the Start position, a discrete signal is supplied to the body control module (BCM) notifying it that the ignition is in the Start position. The BCM then sends a message to the engine control module (ECM) notifying it that CRANK has been requested. The ECM verifies that the transmission is in Park or Neutral. If it is, the ECM then supplies 12 volts to the control circuit of the crank relay. When this occurs, battery positive voltage is supplied through the switch side of the crank relay to the S terminal of the starter solenoid.
DTC P0615: Starter Relay Control Circuit
have the vehicle checked .

Jun 20, 2017 | 2008 Buick Enclave

1 Answer

Any ideas why a 1998 Mercury Grand Marquis would just suddenly stop running in the middle of the highway going 55 mph and w a half tank of gas in it and now turns over but wont actually start again?


first suggestion is broken timing belt
second is failed crank shaft position sensor
third is failed cam shaft position sensor
forth is failed ignition control module
fifth is faulty ECM or power fuses to the ignition, ecm

Mar 23, 2017 | 1998 Mercury Grand Marquis

2 Answers

94 ford ranger splash 4.0 will start but dies,i don't know if it is fuel related or what. iv'e changed about everything I know.


Try the ignition module or the ignition switch itself. I have seen them before where they will only get spark in the crank mode. Also check and make sure that your wires are on the correct side of the starter solenoid and not only getting power when you are cranking.

Oct 10, 2015 | Ford Cars & Trucks

1 Answer

My patriot got coolant into the oil after a freeze plug popped on my engine on christmas. Thinking it was the head gasket, we pulled the engine apart and replaced the all of the gaskets, cleaning...


Replace out that censor it will stop the vehicle from starting. if the crank shaft is not adjusted by the censor then the car will not start. It is a key part of the timing and will throw the automatic kill switch to the ECM (electronic control module) that allows the car to start.When you do repairs like that it is always a good thing to change out that censor as it will always go bad from ware.

Jan 28, 2014 | 2009 Jeep Patriot

2 Answers

My jimmy just died at a drive thru we have changed the ignition module then the crank shaft censor then the computer still not working the engine will turn over but not catch..what do i do now????


what gave you the reason to change all the things you have replaced. and just remember just because you replaced something doesnt mean that the part may not be defective... check for fuel, fuel pressure, spark, compression first. then i can help you.

Jun 19, 2010 | 1998 GMC Jimmy

2 Answers

1992 lumina starts, sputters, then dies. replaced the coil packs, plugs, wires, map censor, cleaned the maf censor. any ideas?


About the only things that you have not changed that would cause that problem are the fuel pump, the ECM, (Engine Control Module) or if your vehicle has one it could be the ignition module, and here is an image of what the ignition module will look like, and not all applications will use one.


8d5f8d0.jpg

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1 Answer

When I first start the Jimmy it fires right up. When I drive it for more than 20 min. While driving the engine runs great,and even better now with all the new parts. I park it then try to re-start it. It...


It may be a bad ignition mod,, Autozone test
are OK for batteries and Alternators but not
modules because it's not a real test, mostly
continuity test, not component heat test...
Get a new module and try it...

Jun 26, 2009 | 1999 GMC Jimmy

2 Answers

91 jimmy 4.3 will not idle cold or hot


I HAVE THE SAME JIMMY, HAD THE SAME PROBLEM, I REPLACED THE IGNITION SWITCH , THAT FIXED IT.

Dec 14, 2008 | 1991 GMC S-15 Jimmy

1 Answer

Cranks but wont turn over


you know. i took it to a mechanic and actually.... The timing belt cut the Crank Shaft Censor... So it was the crank shaft censor again. The wires were routed wrong from the first mechanic that "fixed" the car.

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