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

10,245

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

Add photo

Related Questions

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 5,100
#2 John Saffrahn
John Saffrahn
Reputation 3,560
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,230
View All

Related Models For Sale

Used Ford F-150
2,064 Great Deals out of 207,332 listings starting at $1,499
Used Dodge Ram 1500
413 Great Deals out of 10,833 listings starting at $1,400
Used GMC Yukon
382 Great Deals out of 19,295 listings starting at $2,000
Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
51 Great Deals out of 45,361 listings starting at $23,408
2016 GMC Sierra 1500 For Sale
88 Great Deals out of 3,573 listings starting at $17,671
2015 GMC Sierra 1500 For Sale
106 Great Deals out of 4,042 listings starting at $14,999
2014 GMC Sierra 1500 For Sale
100 Great Deals out of 4,286 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
47 Great Deals out of 1,925 listings starting at $10,950

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.