N
nrangerZR-1
Guest
Well - I discovered the solution to the problem I described below. After reviewing my GM manuals for a moment, I took a close look at the EGR valve and the surrounding plumbing and realized that 2 vaccum lines had popped off. I reconnected them and everything works great. It idles well and the service engine light has been extinguished.
Time to take the glass top off and go for a morning ride!
Robb
_______________________________________________________________
Good morning everyone,
Last night I turn the key to crank the engine on my 91 ZR-1 and something very strange happened. The engine turned over just fine, but there was a "pop" sound from under the hood. I turned the key off before the engine actually started and notice a little smoke coming up from under the hood. It was gone pretty quickly and I could not identify the source. I restarted the car and it did not occur again. It idled rough at first, but once we were under way everything ran great. Well, the service engine soon light was now glowing brightly.
I know this is pretty vague, but any ideas - did I lose the EGR valve or a sensor? What could have caused the smoke? Maybe a small backfire through the exhaust manifold? I have read a number of threads regarding the light, but could not find the "smoke" event described here anywhere. I am a novice with regard to working on the LT5, so go easy on me.
Just cranked her this morning and the light stays on and I can notice a change in the smell of the exhaust.
Any suggestions would be much appreciated.
Many thanks,
Robb
Time to take the glass top off and go for a morning ride!
Robb
_______________________________________________________________
Good morning everyone,
Last night I turn the key to crank the engine on my 91 ZR-1 and something very strange happened. The engine turned over just fine, but there was a "pop" sound from under the hood. I turned the key off before the engine actually started and notice a little smoke coming up from under the hood. It was gone pretty quickly and I could not identify the source. I restarted the car and it did not occur again. It idled rough at first, but once we were under way everything ran great. Well, the service engine soon light was now glowing brightly.
I know this is pretty vague, but any ideas - did I lose the EGR valve or a sensor? What could have caused the smoke? Maybe a small backfire through the exhaust manifold? I have read a number of threads regarding the light, but could not find the "smoke" event described here anywhere. I am a novice with regard to working on the LT5, so go easy on me.
Just cranked her this morning and the light stays on and I can notice a change in the smell of the exhaust.
Any suggestions would be much appreciated.
Many thanks,
Robb