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Grand Prix

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Question
Driver door won't unlock or lock from the inside and out. We are currently on the outside locked out
The problem sounds like the door latch or door lock is seized and will not let you open the door. You will need to get in through the passenger door and the inside door panel will need to be removed...
Question
When I drive the car is fine but after like 15 min of driving when I press on the gas it make a clunk sound
Something like this could be due to worn drive axles, loose suspension components, loose motor mounts and possible transmission related faults such as a loose torque converter. The noise sounds like it is fairly obvious and so a trained mechanic...
Question
car shuts off
Hi Vilaschandra. Thanks for contacting us today. In many cases, when the oil light comes on, it's due to an oil pressure problem. Oil pressure is different than oil level, as it measures the flow of oil inside the engine...
Question
Help
Be sure there is adequate oil in the engine. If there is adequate oil and yet the "low oil level" light comes on when the engine is running, that means there is a fault with the oil level sensor in...
Question
Car or stereo won't shut off once car is off and key out and battery keeps dying
If the car engine does not shut down when you turn the key to "off", the ignition switch contacts could be faulty and, if so, the switch should be replaced. The stereo has its own on/off switch though. So, if...
Question
04 pontiac grand prix car wont start
Hi Joe. Thanks for writing in today. In most cases, when you turn the key and nothing happens, it's due to a faulty starter relay, damaged starter, ignition relay or ignition cylinder that is damaged. Unfortunately, there really isn't a...
Question
05 Grand Prix leaking problem.
Possibilities range from the a/c system having a sudden blow out to an engine cooling system leak or oil leak. If the a/c system stopped working, you can assume that the smoke was escaping refrigerant and the liquid that you...
Question
Speedometer is jumping and my car is jerking
This could be related to a couple of possibilities. The [instrument voltage regulator]((https://www.yourmechanic.com/services/instrument-voltage-regulator-replacement) regulates the voltage supplied to the various gauges in your vehicle’s dash. When this is not working properly, this may cause the gauges in your dash to...
Question
Radiator rusting and car overheating
The most common cause of corrosion and rust inside your radiator system is sludge, a black, mud-like substance which, if untreated, will build up over time, resulting in the corrosion eating tiny holes in the radiator causing leaks. I would...
Question
My car loses power then won't go over 20 mph its a 05 pontonic grand prix
Hi April. The Reduced Power light usually indicates a fairly serious problem with the throttle system. When this light illuminates the vehicle will often go into a “safe mode”, which will severely limit the speed of the car and in...
Question
Car starts and shuts off. Replaced crank shaft sensor and its not fuel pump
Hi James. Thanks for contacting us today. There are multiple possible reasons why your car will start and shut off as described. First, although the crankshaft position sensor is a common source of this issue, one item often not replaced...
Question
My car been driving good lately but my reduced power light came on wats wrong
The reduced power light indicates that something has gone wrong in the engine or transmission control system and the controller has limited the speed at which you can operate the car to prevent damage. It's sort of an enhanced limp...
Question
Is an HDM headlight driver module the same as a relay switch?
Unfortunately many manufacturers will call a part by one name while call it something else. However a module is a computer and a relay is more like a switch. If they recommended a module it is likely a computer failure....
Question
Throttle position sensor
You may need to perform a throttle body relearn procedure after changing the throttle position sensor. As you may know, after cleaning the throttle body your car needs to go through a "re-learning" process to bring the idle back down....
Question
I have a pontiac grand prix. It will start when I turn the key but immediately dies. It will not pull a code when we test it.
A few different things will usually cause the vehicle to start and then die. A bad ignition coil can cause this if it is beginning to fail, resulting in intermittent starting problems. A dirty or faulty mass air flow sensor,...
Question
My car will start and run for a few seconds and cut off. My car is 2000 Pontiac Grand Prix GTP
Hi Josh. Inconsistent starting and running issues like you've described can be caused by multiple component failures, ranging from the wrong spark plugs being installed, an incorrect spark plug gap, the plug wires being installed incorrectly or other failures of...
Question
Oil
Yes you can. Most newer oils are much better now and 5w30 is a good alternative to the 10w30 oil. It will flow better in colder weather and just as good at higher temperatures since both are 30w.
Question
just had my steering rack replaced. My fluid is full but now it's tough to turn wheel. and white smoke coming from under the hood.
This suggests your power steering pump may be failing or you have a leak elsewhere in one of the power steering lines. The power steering system operates on very high pressurized hydraulic pressure (in some cases as much as 300...
Question
i have a 03 pontaic grand prix and i changed the heater core and it stoped running what should i do
I would recommend retracing your steps to see if anything was installed incorrectly. It is also possible that the heater core was not the cause of the original issue. If you are in doubt about this repair I would recommend...
Question
I have a 05 pontiac grand prix . i have replace the fuel pump and its working but my car still wont start someone told to get a tu
It is possible that you could need a tune-up performed on your vehicle however this typically isn't the cause of a no start issue. Normally needing a tune-up will cause the vehicle to run bad rather than not run at...

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