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Pontiac Grand Prix Questions

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

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1,042
questions

My car's transmission did not gradually start slipping or sticking, it seems it happened without warning of any kind. One day it's driving just fine, and out of the blue, it's not shifting gear.

What is the average cost to replace the transmission?

Car will not start or crank using key, I can get it to crank by jumping relay with a paperclip but will not fire

I drive a supercharged 2006 Pontiac Grand Prix gt. My engine is misfiring in cylinders 3 and 6. Car obviously has no power. I recently changed the air filter so I know it's not that. I was thinking about replacing the fuel injectors and the fuel filter. I've done injectors before but not the fuel filter. I don't see it anywhere on the fuel line, so i'm guessing it's in the tank. Could you give me some pointers. I would greatly appreciate it.

I did a diagnostics on my car, I don't know how to read it just see the code it puts out, I went ahead and wrote the numbers down that were the readings from the test like the fuel sys 1 cl, catt % 3.9, veh speed 5, map (hnhg) 11.5 are some of them, changed the crankshaft Position sensor A circuit range/performance, took readings again got 1 cl, 2.7 for the catt, 0 on veh speed, 13.00 on the map, are these normal? But I got another reading of 0420 and 0463, are these related to the first code? Why wouldn't these come up on diagnosic test when it gave the P0366 code. I thought when you did a diagnostic test on your car it reads all things wrong at the same time. Thank you

my cars fuel gauge stays fuel until it starts running low on gas then the gauge goes down slowly to the empty level It has done this since I bought it 3 years ago. I haven't ever had a readiing code like this. I did have to change my gas cap would that have anything to do with the code 0463?

I'm trying to smog my car and got the code P0336, I fixed that then got a code 0420 and 0463 which I need help figuring out what I need to do to get it to pass. the catalyst system code I checked hoses, vacuum leaks, bare wires, I looked at everything and can't see anything out of place or broke. Seems like I had this problem before when it needed smogged but I didn't have replace the catalatic converter. I can't remember what was done but it wasn't much. The code 0463 didn't come up until I was told I needed a new gas cap. Would the gas cap give the reading 0463 if it was new? Help I'm running out of time

do i have to drill it out or is the another way?

Replacement cost

It is 12 hours off every day

I have a new radiator 2016 mass air flow sensor has been replace the codes p0480 and p0102 are the codes engine light is still on I have been told that the automatic starter has damaged my ecm need to replace the engine computer

The steering wheel &ignition switch got ripped out. I put the steering wheel back on but the car won't stay cranked..why?

I have replaced the water pump but cannot find the location of the thermostat to replace it too.

After driving bout 20min my service engine soon light came on and my oil light what do I do?

I am trying to avoid a 500 charge to be safe?

I dealt with this problem last Spring, and took my car to a Pontiac Certified dealer service center to get the problem fixed. They replaced the blower motor and resistor. But now, the blower only works on setting five, and on settings 1-4 my Day Running Lights go out. There are days that my lights won't come on at all unless I turn them on manually. I really wish I knew what was going wrong. I've heard that it may have something to do with the ignition switch or the wires on the same. Any advice would be helpful, because I don't want to get robbed blind for another $600 to get this issue handled again. I'm hoping it's just blown fuses, but don't know exactly how to check those out. Please help, and accept my appreciation for your time and advice.

The 'low coolant' light comes on. When I get home and check the radiator it is almost empty. Also, there is an Oily liquid leaking underneath on the driver side. But the oil looks fine. There is also a leak of some sort underneather the passenger side right about where there radiator is located. Although, while the car is sitting on the street not being driven anywhere or turned on, the radiator stays about the same as if there has been nothing leaking while the car is parked. What is wrong with my car? I'm so frustrated with it.

It was perfectly fine till I had a leak from the pan..the man broke a screw from the pan..it was driving before this

Security light comming dashboard cranks but will not turn over

How much does exust baffle

Running. Loud when first. Starts

theres a short by my battery that if you wiggle car starts car loses all power then you wiggle the little blue box by battery and it starts till wire loosens again

want change gear, cannot get out of park. cannot get out of the park gear.

when I turn on blower at high heat level I don't get hot air.

Bought a new battery and still car wouldn't start even with a jump. The power windows won't work.the defrost only blows out cold air?

The defrost turned on only cool air comes on. No heat...I checked the coolant and it's ok. Car temperature meter reading hot.

I bought a new battery for my 2002 pontaic grand prix and in am my car would not start. Even with a jump start. Why won't my car start?

The car is not running any different than normal so i need to know things it could be and repair cost

I done changed the accelerator pedal,the maf sensor and the throttle body,what else could it be?

I keep hitting switch to cut them off but nothing is happening they just keep coming back on.