Question about 1999 Pontiac Bonneville
The check engine light has been on for about 1 month now and I need to know what could be causing this. I would admit that right about the time the light came on I noticed an occassional hickup, studdering of the engine upon acceleration from a standing stop. I figured it was probably bad gas, but wasn't completely convinced of that. However, just yesterday, which was the hottest day of the year (91 degrees), the car exibited this studdering like never before. Driving down the road the problem was really bad and I almost didn't get home. After letting it sit for a while, the problem temporarily went away, but returned soon after. Could this just be vapor-lock and not related to the check engine light, or is there something I need to look into?
Please let me know, thanks.
Sounds like your not getting enough fuel from a bad fuel pump. As the pump heats up it stops sending the proper PSI of fuel from the pump to your engine. As it cools down it gets better but quickly returns once the pump heats back up. The only real solution is replacing the pump and fuel filter.
Make sure in the future to keep at least a half a tank of gas in it as the gas cools the pump.
Hope this helps..
Posted on May 19, 2009
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Posted on Jan 02, 2017
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