Question about GMC Jimmy

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Pcm problem hi i have a 96 gmc jimmy 4x4 4.3 the pcm has gotten unplugged with the battery hooked up i have plugged the pcm back in and now the truck will not start any suggestions?

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That is definitely a no-no and the PCM is probably damaged! The PCM connectors are color coded and you should not be able to connect the plugs to the wrong sockets. But since you have pulled at least one, you should disconnect the battery and check each connector for bent pins, and that all of them are properly seated and in the right places. Then, try again to start the truck. If it still doesn't start, you will probably need a new PCM programmed to your vehicle's VIN.

Posted on May 18, 2014

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Posted on Jan 02, 2017

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Are the bands easy to replace in transmission of 95 GMC jimmy. Also will the bands and shift solenoids out of a 96 GMC jimmy manufacturer in 11/95 fit in a 95 GMC jimmy


hi, join this and ask them-- they own them and have info you can trust.......http://gmcowners.com/gmc-forum/forumdisplay.php?f=10

happy trails

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I got a 2000 gmc Jimmy no start, no spark and diagnostic computer says no link or communication from pcm. Any ideas? I did check all the fuses and the wiring to the distributor, crank sensor, ignition...


If vehicle has been submerged, PCM is likely dead. If vehicle has been struck by lightning, PCM could be locked up or dead. Assuming none of these has happened:
Check power to PCM, not just fuses. You can check through the backside of the connectors ON the PCM.
Check connectors on PCM.
Check ground to PCM.
Make sure you've had no rodent activity on vehicle wiring.
Reset PCM by disconnecting battery (+) lead, waiting 15 seconds, then grounding battery (+) to battery (-) lead. Reconnect battery (+) lead to battery. All user memory sets such as radio and seat settings will be lost.
With no output from PCM, after resetting, the highest probability is dead PCM. It's rare, but it happens.

Nov 10, 2014 | 2000 GMC Jimmy

1 Answer

My pcm came unplugged without the battery unhooked on a 96 gmc jimmy now wont start


I don't know what you mean by, "I plugged it back up". Did you mean that the harness unplugged or that a wire came out of the plug? Inspect the fuse-box. Look for a blown fuse. You can try disconnecting the battery for 30 seconds. If the stock stereo has the anti-theft feature, remember to disable it first. If a wire did in fact break away then you will need to do more than just push the wire back into place. Please write back with any questions or status, good luck.

Mar 27, 2014 | GMC Jimmy Cars & Trucks

1 Answer

Are ACDelco 41-942 Spark Plugs the proper plugs for the 1996 GMC JIMMY 4WD V6 , are they pre gaped and what should the proper gap be?


they should be the 41-932 plugs. AC Delco
gap should be 0.060 inch.
Check the gap before installing any plug. You never know if they were damaged in shipping before the part store got them, or if some idiot employee at the store attempted to juggle them while bored one day and damaged them by dropping them.

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1 Answer

I have a 95 gmc jimmy i replaced the fuel pump and changed the wires plugs rotor and cap now it wont start


Hi, Were the parts replaced due to a no start condition? Is there a trouble code stored in the PCM or an engine light on? How many miles are on the truck?

Oct 05, 2011 | 1995 GMC Jimmy

1 Answer

My 96 gmc jimmy's heater has a mind of it's own. it turns on when it wants to...what could this be?


you have a bad connection on the plug where it plugs in to the blower motor.

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1 Answer

Where is the engine oil drain plug on a 1998 gmc jimmy ?


i have a 96 and an 01, go under the truck from behind the drivers side front tire, the drain plug is at the back of the oil pan just behind front skid plate, the oli filter is right behind the front bumper , there is a trap door to get to the filter, but that's only for 4x4 or awd modle's, 2wd filter's are on the drivers side of the enging infront of the starter

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1 Answer

How many plugs plug in the back of a 96 jimmy cd radio


Check this...
S-10 Series Trucks and Blazers - Chevy
Jimmy and Sonoma - GMC
Bravada - Oldsmobile
Pickup - Isuzu

1994-2000
http://www.installdr.com/InstallDocs/GM/PDF/460001.pdf

1986-1994
http://www.installdr.com/InstallDocs/GM/PDF/460037.pdf

Hope help with this.

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