Question about 1994 GMC Sonoma

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Where is the ecm on a 1994 gmc sonoma - 1994 GMC Sonoma

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If it's a 2.2, its on the passengers side, mounted to the engine block just above the motor mount. It sits under the coil packs. If you meant PCM, its inside the truck passenger side, behind the glove box.

Posted on Jan 19, 2013


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Posted on Jan 02, 2017

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SOURCE: ecm on 2000 sonoma s10

napa has them on the shelf re manufactured already for 150 to 200 dollars. best quality i have used in after market parts. always have problem with auto zone stuff so i don't even bother no more. good luck

Posted on Oct 08, 2009

  • 69 Answers

SOURCE: My 1994 GMC Sonoma is leaking coolant

is it out of a flange or out of the block?head gasket? if its a leaky flange they usually have o rings that tend to rott out after 100k plus.and they make this stuff called stop leak it works real well,and if its real bad and your in a pinch the egg always works

Posted on Feb 08, 2010

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SOURCE: 1994 Sonoma: 1994 GMC Sanoma with 4.3 fuel injection. Idle spee...

that is un adjustable you would have to change the idle postion sensor

Posted on May 05, 2010

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SOURCE: vacuum diagram for 1994 GMC sonoma truck

a6c17b0.jpg Hope this is big enough to view

Posted on Aug 18, 2010

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SOURCE: where is the pcm located

The PCM for what ?
There are several PCM ( part controle modules) in any given vehicle... Most are integrated in the ECU .

Posted on Sep 30, 2010

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1 Answer

Where is my ecm located

it should be under the glovebox on passenger side behinde pannel .

Jan 02, 2013 | 1994 GMC Sonoma

1 Answer

The onlly thing working on the instrument panel is the speedometer all other guages are not working for a 1991 gmc sonoma


Dec 25, 2012 | 1994 GMC Sonoma

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What are the signs of a bad computer in a 1997 gmc sonoma

No one sign. Us mechanics perform what we call the slap test. With the car or truck running. Take the ecm out of the holder, leaving the terminals all connected, SLAP the ECM. If the vehicle shudders or stalls, Your ECM is bad.

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Firing order diagram for a 1994 gmc sonoma

94 GMC Sonoma have fuel and fire but will not start replace rotor and spark plugs still will not fire and new feul filter and filter under can still no start any suggestions

Feb 21, 2012 | 1994 GMC Sonoma

2 Answers

1994 gmc sonoma with alternator putting out 11.7 volts no matter what you have on. New battery and rebuilt alternator. What else could cause this low voltage situation. The battery and abs lights are on.

Try checking the gauge inside the truck
If it reads wrong - not to worry - just carry on as it is.

Try turning everything on - then CAREFULLY remove the NEGATIVE battery cable - if the truck continues to run WELL - the problem is most likely the gauge.

Check it the local battery store - free.

Gary @ Fix Ya.

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1 Answer

1994 Sonoma: 1994 GMC Sanoma with 4.3 fuel injection. Idle spee...

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May 05, 2010 | 1994 GMC Sonoma

1 Answer

As soon as i turnthe key the ecmbfuse blowson my 99 gmc sonoma

Unplug the connectors from the ECM. Try good fuse and then turn key on. If it does not blow then the ECM has an internal short to ground and needs replacement.

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