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Car Forum / Pontiac / Pontiac Cars / March 200992 Bonneville stalls
My 92 Bonneville stalls when breaking to a stop. Sometimes it stumbles but doesn't stall. Rarely but it may stumble or even stall when driving with my foot off the accelerator for maybe 15 or 30 seconds. Works OK when driving and if I accelerate hard it doesn't seem to hesitate and continues to run OK as I accelerate normally. It runs somewhat rough at idling, but not all the time. Any help would be appreciated. Tony Is it supercharged model? Check the condition of the O2 sensor, would be my guess. > My 92 Bonneville stalls when breaking to a stop. Sometimes it stumbles but > doesn't stall. Rarely but it may stumble or even stall when driving with my [quoted text clipped - 5 lines] > > Tony It's not supercharged. > Is it supercharged model? > Check the condition of the O2 sensor, would be my guess. [quoted text clipped - 13 lines] >> >> Tony > It's not supercharged. > [quoted text clipped - 15 lines] >>> >>> Tony While the cars at idle , in park , try tapping on the MAP sensor with the end of a screwdriver to see if it will cause it to stumble , this sounds almost like a problem i had with a 86 Grand Am Ya, map sensor is a good check, especially the vacuum hose to the sensor. Even a minor leak will cause problems. >> It's not supercharged. >> [quoted text clipped - 19 lines] > end of a screwdriver to see if it will cause it to stumble , this sounds > almost like a problem i had with a 86 Grand Am |
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