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Grand Prix

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Question
Car jerks
What you are describing sounds like a dirty or faulty mass air flow sensor. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays vital information...
Question
My power steering and ac stopped working and it overheated 2005 Pontiac Grand Prix
Hello. It is possible that the issue is the water pump, but most of the time when all of these components go out at the same time it is because the belt is not longer turning the accessories on the...
Question
Why does my blower motor not work after a crossed wire problem in my 2004 Pontiac Grand Prix
Hello. Depending on exactly where the short was it may not blow the fuse. Most of the time it will melt the resistor itself internally. It may also have a short in another location. I usually take a voltage meter...
Question
Does a bad torque converter cause the transmission to not engage into any gear at all?
What you are describing may be a result of a faulty speed sensor, potentially low transmission fluid or a even a faulty transmission control solenoid. As your vehicle travels down the road, the computer analyzes data being sent by vehicle...
Question
Temperature Gauge
The overheating and the no cabin heat could be related but they could also just be coincidental and thus due to unrelated causes. If the problems are related, you can get intermittent or inadequate cabin heat if there are air...
Question
My car wont start and i dont know why
I would first at least determine the source of the cooling leak to make sure it is not in the head gasket area, or other troublesome area to repair, because if it is that repair (of the leak) has to...
Question
error codes p0440 and p0404
Hi there. The codes you provided are commonly related to the EGR or Exhaust Gas Recirculation system; specifically the EGR valve or solenoid. You may want to read this article on what typically triggers these codes and possible solutions. ...
Question
No heater and overheating
The heater not working in some cases may be related to the overheating problem you are also having. This may be due to a faulty heater blower motor or potentially a bad heater core. As you may know, the heater...
Question
My front end shakes when I accelerate at low and high speeds 2003 Pontiac Grand Prixh
Hello - from your symptom description, you have a worn out or damaged Constant Velocity joints on one or both front axles. These worn joints allows excess "wobble" of the axle, especially when under power, creating the vibration you notice....
Question
New starter new battery
Hi there. After reading your question, it is possible that you have an ignition system failure occurring. In most cases like this, a cam or crankshaft position sensor (or the electrical harness attached to them) may be worn out, which...
Question
I have a burning smell in my car.
This is not likely. A dirty cabin filter filled with old pine needles is more likely to cause a moldy smell inside the vehicle. The burning smell may be coming from a a shorted circuit somewhere in the car. Consider...
Question
High beams come on whenever I use my right turn signal 2008 Pontiac Grand Prix
Hello - you have a wiring problem with the right front lights, most likely a bad ground for all the lights on the right, front corner of the car, but especially the right, front turn signal. I recommend an electrical...
Question
Frozen non-drive wheel. Will not turn at all
You won't know until you get the brake caliper off. If it is a brake problem, the caliper will be very difficult to remove but the hub will turn freely after you get it off. That could be a parking...
Question
Is there anyway to bypass the ac compressor they make bypass pulleys but can't find any for an 88 Grand Prix
As long as the a/c clutch bearing is not seized, it doesn't matter if the a/c compressor is locked up. As long as you do not turn the a/c on, this causing the clutch to engage and attempt to run...
Question
88 Grand Prix 2.8L. Idles fine in park but won't go over 2k rpms. Idles fine in drive but won't go over 30mph or 2k rpms
Hello, thank you for writing in. Everything you have done so far will only improve the performance once this issue is resolved, so do not loose hope yet. The only system it would appear you have not looked into would...
Question
What does it mean when your charging system failure light comes on out of no where while driving?
Hello, thank you for writing in. The vehicle is detecting an issue with the alternator or the battery. When supplied power from the system is too low or too high, the monitoring system will alarm you. You should have the...
Question
Idles fine in park But won't rev above 2,000 rpm and won't go over 30 mph. 1988 Pontiac Grand Prix
Hello. This can be caused by a number of things. I usually start by doing a compression test on the engine first. If the compression is low then the engine may be worn or it may need a timing chain....
Question
Lock / unlock buttons not working on key fob.
The key fob may have some broken buttons or the battery could be dying out causing the buttons to not function. If the key fob has been dropped, a contact point inside the electronics on the key fob could have...
Question
Car won't start
Hi there. I believe the security light being on and the car not starting issue is one in the same. The FOB needs to be programmed to the ECU of your Pontiac. General Motors cars have a procedure for "relearning...
Question
Where I could find the clips that hold the back seat cushion down on a 1999 Grand Prix GT?
Hello, thank you for writing in. Start by going to an vehicle upholstery shop to get an idea of what that exact piece is called, and what you can do about obtaining one. There are many types of clips, and...

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