missing in top end
Asked by sprintcar99 Oct 09, 2013 at 07:43 PM about the 2008 Pontiac Grand Prix
Question type: Maintenance & Repair
step on gas it is good but no top end
6 Answers
Goodwrench707 answered 10 years ago
What do you mean by top end? How fast are you going when it misses?
sprintcar99 answered 10 years ago
wen the car is in park step on gas it goes 2 4hundred rpm then drops to about 3and 1/2pm don't no 2 much about new cars wen idol miss a littiethen in driving plenty power in low end but sputter in top end feel a miss wen you put yourhand over the exhaust pipe hope this makes sense thankyou
Goodwrench707 answered 10 years ago
In park there is a rev limiter on this car. I'm assuming you mean 4000 rpm? The car, also has a top speed governor. It will cut back on fuel when you reach top speed. That's why I asked how fast you were going when it looses power. The tailpipe is not a good check for misfires. A check with an engine scanner will produce far better results, even if no check engine light is on.
