Engine RPM Jump Before Shifting 1999 Grand Prix

Question: Hi I have a 1999 Pontiac Grand Prix. I am starting to think that there is something wrong with the shift solenoid. The car is still in good mechanical condition, the check engine light …

1995 Pontiac Bonneville Will Not Crank Over

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I have a Pontiac Bonneville that will not start.

What year? What happens when you turn the key? Does it crank over at all?

I’ts a 1995 and no it will not crank. …

My Pontiac Has Intake Gaskets Leaking- Is It Safe To Drive?

Picture of the GM 3.8L 3800 V6 Engine

I took my 2001 Grand Prix 3800 V6 engine (130,000 miles) into the dealer for a bit overdue oil change. After doing the courtesy inspection, a mechanic familiar with my car fills out a form …

How To Replace Pontiac Grand Prix Ignition Cylinder

GM Passkey chip in the key. Used on older GM cars and trucks for the security system that causes your vehicle to not start.

My 1994 Pontiac Grand Prix se ignition went out of it. The key has the chip in it. I cant lock my car anyhow. So wondered if i could replace that ignition with a regular …

2004 Pontiac Grand Prix Catalytic Converter I/M Flag Not Ready

2004 Pontiac Grand Prix with a “2″ motor will not go “Ready” with the catalytic converter test for I/M testing. I went in the service manual and did the testing for P0420 where you run …

Ponitac Grand Am Theft Warning Light And Won’t Start

My 1996 Pontiac theft system light is on. i start car then it turns off with the theft light on. The I restart the car the light goes off and everything is fine but i don’t …

1999 Pontiac Grand Prix Vents Hot On Drivers Side- Cold Passenger Side

This controls the temperature of air coming out of the vents. When they go bad, the air stays cold or hot and you cannot adjust it.

1999 Pontiac Grand Prix. When I turn my heat on I get heat on the drivers side and A/C cold temperature coming out the passenger side. Same thing happens if I turn on the A/C.

Pontiac Grand Prix Catalytic Converter And ABS Codes

Spark plugs that have carbon tracking causes misfires

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 …

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 …

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 …