Category Archives: Pontiac

Pontiac car and SUV auto repair questions and answers. Get help from expert mechanics online. Browse our forums, view pictures and new articles.


Pontiac Grand Prix Catalytic Converter And ABS Codes

Check engine light codes problem with my 2002 Pontiac Grand Prix GT. 3.8L non supercharged. ABS, Track Off and Service engine soon. GM Computer codes  C0045, C0046, C0245, P0303, P0420, P0172. Reason for code P0420 is because I don’t have a catalytic converter. Ever since I retrieved the code P0303 I have changed all of the…

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2003 Pontiac Grand Prix Transmission And Catalytic Converter Codes

I have a 2003 Pontiac Grand Prix GT with a 3.8L Series II engine. I am having 2 different issues with this vehicle. First, the transmission has started jerking hard into gears. It seems that it only does it once the car gets up to a normal operating temperature. I will be stopped at a…

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2001 Pontiac Grand Prix Check Engine Light

I recently replaced my EGR valve because the check engine light code came up on my car, along with that I also had to replace my catalytic convertor, from what the mechanic I went to said, is that the bad EGR valve caused the catalytic converter to clog, I don’t know how true this is because…

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2002 Pontiac Grand Prix Transmission Or Catalytic Converter

I have a 2002 Pontiac Grand Prix. Over the last few weeks i have had trouble with the can being jerky while accelerating also i tends to do this more the warmer the car gets ie: runs good in the am but by lunch time it’s acting up. Also i noticed this morning that the…

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2004 Pontiac Sunfire Misfire On Cylinder Four

I have a 2004 Pontiac Sunfire, and its got a Valve 4 misfire. I have changed the spark plugs, plug wires, coil pack and distributor. What else can I do. I think you mean cylinder 4 misfire, but that’s ok. Since you have changed most of the ignition components, I would say the misfire is not…

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1997 Pontiac Grand Prix Engine Overheating

Hello first time here, just looking for a little help or a lot, well here is my issues. I purchased a 1998 Pontiac Grand Prix gt 171k. It had a blown headgasket, so did all repairs, valve job, new water pump, ect sensor, t-stat, upper and lower hoses, replaced radiator not new but good. Also…

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2001 Pontiac Grand Prix Chugs And Hesitates

Hello. I have a 2001 Pontiac Grand Prix. When i press on the gas pedal, the car sort of chugs. I always use good gas. This started happening more when it is raining or very damp outside. Don’t know if that is just coincidence or not. With the problem happening more when it is damp…

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1997 Pontiac Grand Prix Stalls and Low Coolant Light

1997 Pontiac Grand Prix GTP low coolant light. It has a new fuel pump, fuel filter, ignition module. The car shuts down at speed without warning.  Twice in three days.  The same thing happened both times: The Low Coolant light is always on – this week, when it shut off like it is supposed to,(a minute…

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2002 Pontiac Montana Cuts Off At Higher RPM’s

2002 Pontiac Montana 3.4L OHV had oxygen sensor code but replaced it and cleared. Head gaskets were leaking as well so replaced (milled heads, pressure tested, valve job, replaced 4 bent intake valves), also replaced plugs, wires, coils and ignition module and O2 sensor, cleaned throttle body. Car cuts out at a specific RPM in…

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1997 Pontiac Firebird Battery Dead After a Few Days

1997 Pontiac Firebird. I have a new battery but my car still will not start after it sits for a few days. It has been doing this for a long time that’s why i have the new battery. Didn’t seem to help.I would like to know if there is a draw on the electric system…

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Where Is The Oil Pressure Switch On 1997 Pontiac Grand AM

1997 Pontiac Grand Am V6 – where is the oil pressure switch and do we need to drain the oil first to replace? ProTech: The oil pressure switch is located in the engine block, above and little to the right of the oil filter. Basically right above the starter motor. You do not need to…

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1996 Pontiac Firebird Engine Code P0151 Oxygen Sensor

The engine light came on in my 1996 Pontiac Firebird with a 3.8 engine. The code is P0151. Is this an oxygen sensor. If so which one and how do I change it? ProTech: Yes that is a code for an oxygen sensor that has low voltage. You probably need to replace it and you’ll…

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