Having problems with your 1988 GMC Safari ?

I have a '88 GMC Safari, when I start it warm, I have to hold the pedal to the floor a long time (while starting). When it does start, it pours blue smoke for 15 seconds, and then idles really high. If cold, it alternately sputters and idles high. I replaced the fuel pump and filter, checked for spark, and checked that the EGR wasn't stuck (don't know how well it is working, but its not stuck)

Posted / edited by AnonymousUser on : 01-06-2020

Answers :

Hello, holding the pedal to the floor overrides the computer and causes it to stop pumping fuel to the injectors thinking the engine is flooded and you are trying to clear it. Since the engine starts like this, it's an indication that one or more of your injectors are leaking. The high idle supports this since there will be excessive fuel in the combustion chamber.
Repair Help & Product Troubleshooting for 1988 GMC Safari

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