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Pontiac Bonneville Questions

Get answers to questions about your Pontiac Bonneville at RepairPal. Find solutions, diagnose problems and get back on the road.

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628
questions

thought wheel sensor but checked with ohm meter and all seem to be working. Any ideas?

still have only cooler air blowing from vents while moving especially.

I had a new plenum kit installed. Bad seals and small leakage when warm caused random misfires. got that fixed. Along with oil change and radiator drained and refilled. Now i have a knocking sound that wasn't there before and some kind of small oil leak, I believe on front part of engine (from the light smoke). In the morning the oil pressure is fine. Could a bad install of the plenum cause an oil leak? Any other help would be great!

Speedometer does not work.

The ad has been up and down but now the unit is on but no air is blowing. Need to replace or remove compressor?

All windows but driver side can be controlled by driver control but driver side won't go down or up. Switch or window itself? Diy project or do I need professional help?

It only happened once in a while now it is more frequent

Sometimes it will turn over and not give me any trouble for a month then it acts like the key doesnt work when I turn it to on. We have had a new starter put on it. That wasnt the problem

I finally stopped buying parts and realized the brown wire supplying power to the climate control unit has a break in the line somewhere. I have no idea where to start my search tracing the wire. Can anyone help me out with its origin and or path it takes?

I've replaced water pump, thermostat, flushed radiator. Car still overheats. My dashboard is not working properly, gas gauge not working, speedometer not working. The "battery saver activated" light comes on, car overheats, car makes high pitch noise. Alternator checked out fine. Fans don't come on.

Oil psi gauge reads under 40.(All at idle) flushed radiator no other actions taken because im not sure of the problem.

I have a 2003 Pontiac bonneville that started out shifting into 2&3 gear hard and over reving so I got some Lucus trans fluid that stoped slips and the next day I pulled up to a stop sighn and when I pushed the gas to go car wouldn't move in any gear. So I shut the car off and re started it and put it in drive and it worked fine but it keeps doing it now what do you think it is?

We took the grill off hoping to use a screw driver and pop the hood, but I can't find the right place to work

we just got the car.It wasn't taken care of.We took it to lakeside muffler and it was doing good till my daughter drove to Colorado. It kept shutting itself off. It would start again in about 20 min. Did this all the way there. Now it still does it even just driving to town. We changed the fuel filter but no change. we are thinking it is the fuel pump.

1992 Pontiac Bonn. have always driven in gear OD. stills shifts nice.! recently serviced feeling something at my feet and hear (with windows open) knocks/pings. no hesitation. no jerkin. is OD gear going out... that possible? or the whole tranny. can just one gear be fixed


I get a popping noise turning corners but seems to be happening more often

I replaced the crankshaft and camshaft sensor we have fuel going thru and spark fuel pump is good it turns over but just won't start it happened from one day to the next it was working fine.

Hey! I blew my last engine in my Bonneville (stupid teenager I know) and I recently dropped in a used one. It was running rough and had a CEL (check engine light). I cleaned the EGR valve with a steel brush and carburetor/throttle body cleaner as this is what I was told to do after the code was diagnosed. After I refitted the valve, the car ram much smoother for around 5 miles. But then it started running rough again. I have cleaned it twice now and this problem continues to occur. Any tips on how to fix this? Thanks!

when I try to unlock the doors with the fob it wont unlock and the power window and door lock buttons stopped working