Car Questions
RepairPal is your advocate for car care advice and guidance

Need help!

(1990 Chevrolet Celebrity)
in Golden, CO on June 05, 2011
I am having trouble with my 88 celebrity 2.8l v6! A week ago was driving up hill and when reached 60 mph, it stalled out, and let out little black smoke. by the end of day it started to stall around 30 mph, or when i put load on the engine it would stall, now i cant get it to start. if i do it runs a couple of seconds then dies. I have replaced the fuel pump, pump relay, fuel filter, replaced ignition coils, computer, prom, and crank position sensor. there is pressure of 40-42 at start, I tested the ignition control module,20 time 8 from one store, 12 from other and passed every time with no hesitation. I have fuel, spark, and pressure, but will not run, I even went as far as to check wiring to make sure didn't have short out some where...everything's fine!I have no injector pulse but from all six to go out would be strange.... Please help!
Displaying 2 answers & 0 comments
Popular Answer
On these engines, shorted injectors are very common. The resistance should be around 12 ohms +/- 1 ohm. When the injectors short, the ecm goes into ckt protection and will cause a stall condition. Many times the shorted injectors will damage the ecm. You can only get to two of the injectors to check the resistance without removing the upper intake manifold. Good luck. A rebuilt set of injectors runs about $100.00. Let me know, we have a set on the shelf ready to install.
Sign in to reply
on June 05, 2011
I suspect there is an exhaust restriction. Possibly a clogged catalytic converter. Have this checked.
Sign in to reply
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
When lights come on sounds like driving over rumble strips and when lights go back off every is fine again
If i am driving and turn the wheel left and right the knocking noise stop and it have a vibration to it
Didn't find what you were looking for?