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1998 Pontiac Bonneville - Page 4 Questions & Answers
Only when it's cold my car will stall out over and
check the fuel pressure it could be a bad fuel pump,also check or replace the fuel filter if it has not been changed in a long time.another thing it could be is the maf sensor may be dirty or have a problem when cold.you will have to have a shop look at it to see if the readings are within spec.
I need to reattach the rear bumper
autozone will have that replacement hardware in the body aisle its usually some assorted bolts, and plastic clips''if the car needs moved to get there, may need to wire tie it up enough or remove entirely to go there(or any closer parts or body shop.
Pings low rpms uphill
Pinging or detonation is normally caused from incorrect fuel mixture---timing or not changing gears when the load for the engine becomes excessive for the revs. Left unchecked it will damage the pistons. Use a higher grade octane rating fuel (give ethanol mix a miss). Have the ignition timing checked and corrected. and ensure that the auto is changing when it should be or change gears more often and keep the revs up.
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