My 1993 GMC Sierra, V8 just quit running while I was driving. What would be the problem?

Asked by Jul 13, 2014 at 06:44 PM about the 1993 GMC Sierra 1500 C1500 SLE Extended Cab LB

Question type: Maintenance & Repair

I have replaced the coil pack, ignition module, and the fuel pump is working.

1 Answer

10,945

Are the fuel injectors spraying fuel. If they are not try the pick-up coil. It is in the distributor plugged into the ICM. You will have to pull the dist to repair ensure you mark the position of the dist/rotor ad start at a known point like TDC on compression incase the motor rotates. (The pick-up coil is referenced by the ECM via the ICM for engine RPM and will not inject fuel until you pass ~ 400 rpm of fuel). If the injectors are working and you have good spark at the plugs check the timing and or the fuel pressure. Could have a plugged fuel filter, fuel regulator issues or the timing may have jumped. I've got a '92 the ICM has went 4 times the pick-up once and the regulator in the TB has plugged once. Original fuel pump knock on wood.

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,450
  • #2
    John Saffrahn
    Reputation
    3,780
  • #3
    Glenn Clingenpeel
    Reputation
    3,470
View All

Related Models For Sale

Used Ford F-150
3,128 Great Deals out of 218,979 listings starting at $1,200
Used Dodge Ram 1500
421 Great Deals out of 11,090 listings starting at $2,000
Used GMC Yukon
580 Great Deals out of 20,676 listings starting at $2,695
Used Chevrolet Camaro
421 Great Deals out of 31,253 listings starting at $1,450

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
25,604 listings starting at $24,499
2017 GMC Sierra 1500 For Sale
72 Great Deals out of 11,349 listings starting at $20,369
2016 GMC Sierra 1500 For Sale
167 Great Deals out of 4,042 listings starting at $16,404
2015 GMC Sierra 1500 For Sale
202 Great Deals out of 5,544 listings starting at $14,995
2014 GMC Sierra 1500 For Sale
197 Great Deals out of 4,896 listings starting at $9,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.