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

10,855

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
    5,420
  • #2
    John Saffrahn
    Reputation
    3,740
  • #3
    Glenn Clingenpeel
    Reputation
    3,430
View All

Related Models For Sale

Used Ford F-150
2,578 Great Deals out of 199,172 listings starting at $1,300
Used Dodge Ram 1500
366 Great Deals out of 10,820 listings starting at $1,500
Used GMC Yukon
474 Great Deals out of 22,325 listings starting at $1,995
Used Chevrolet Camaro
445 Great Deals out of 30,844 listings starting at $1,450
Used Ford Mustang
596 Great Deals out of 36,387 listings starting at $899

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
83 Great Deals out of 21,750 listings starting at $23,500
2016 GMC Sierra 1500 For Sale
151 Great Deals out of 4,092 listings starting at $16,990
2015 GMC Sierra 1500 For Sale
176 Great Deals out of 5,333 listings starting at $16,900
2014 GMC Sierra 1500 For Sale
163 Great Deals out of 5,046 listings starting at $13,750
2013 GMC Sierra 1500 For Sale
74 Great Deals out of 2,168 listings starting at $7,950

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.