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ONE DAY THE CAR JUST WOULD NOT START WE THOIUGHT IT MIGHT ME THE FUEL PUMP WE HAD IT CHANGE. TRIED TO START THE CAR IT WOULD NOT START. WHEN YOU PUT THE KEY IN THE IGNITION AND TURN TO START YOU HAVE TO OPEN THE HOOD AND UNHOOK THE BATTERY THEN TURN THE KEY AND THE CAR STARTS BUT WHEN YOU TURN IT OFF YOU HAVE TO DO THE SAME THING AGAIN IT IS LIKE YOU HAVE TO RESET EVERYTHING TO START IT AGAIN BUT THE RPMS WILL NOT WORK AT ALL. CAN YOU TELL ME WHAT YOU THINK IT MIGHT ME? i WOULD APRECIATE IT. THANK YOU.

ONE DAY THE CAR JUST WOULD NOT START WE THOIUGHT IT MIGHT ME THE FUEL PUMP WE HAD IT CHANGE. TRIED TO START THE CAR IT WOULD NOT START. WHEN YOU PUT THE KEY IN THE IGNITION AND TURN TO START YOU HAVE TO OPEN THE HOOD AND UNHOOK THE BATTERY THEN TURN THE KEY AND THE CAR STARTS BUT WHEN YOU TURN IT OFF YOU HAVE TO DO THE SAME THING AGAIN IT IS LIKE YOU HAVE TO RESET EVERYTHING TO START IT AGAIN BUT THE RPMS WILL NOT WORK AT ALL. CAN YOU TELL ME WHAT YOU THINK IT MIGHT ME? i WOULD APRECIATE IT. THANK YOU.

Last year when I was parked on an incline, with about 1/4 tank of gas, my guage went to empty. As I drove away, my check engine light went on. It went off a couple days later but returned a couple days after that. Since then, my gas guage has not worked. Even when I have the tank full, any time I am stopped and idling, the guage goes to empty. More importantly, I had the check engine diagnosed. They stated it was a vapor canister valve. I am not sure of the code, but I thought it was a Po440. Do I just need to change the vapor canister, or with the gas guage doing this odd behavior, could it be something else to?

ABS harnass needs repaired...how much?

Check engine came on (02 Grand prix 3.8L), Cleared code P0442 (Small EVAP Leak), Check engine came back on and noticed gas cap gasket was cracked, Replaced w/new and cleared code again.. Ran very good for roughly 70 miles after topping off the tank but did notice the needle took awhile to drop from the (F) mark, I then had lose of power with no additional codes returning and now it is very difficult to go over 30MPH without having serious hesitation. Changed purge valve, fuel filter and check vacuum lines for the obvious....All looked good from what was visible... Hooked up the OBDII with laptop and noticed the 2nd bank O2 Sensor was showing voltage but showed N/A for the fuel trim as O2 bank 1 show voltage as well as a percentage reading for fuel trim... Any Thoughts?

My 2002 grand prix has a a fuel gauge with a mind of its own. I have been told that it is the fuel sensor. I need to know how to access it and the proper way to remove it and install the new sensor. Thanks in advance

back power window went down and now won't go back up. The rest of the windows work fine.

WHERE IS THE SENSOR LOCATED WITH-IN THE FUEL SYSTEM?

heater control knob fell off

My low coolant light is on, but my radiator is full and so is my overflow tank? Any suggestions?

How do I change the oil pan on a 2002 pontiac grand prix? looks like it is pretty rusted and the oil pan gasket is leaking.

How much can a person expect to pay for a replacement of a wheel bearing.

the car is leaking coolant and it appears to have water in the oil i see water leaking around the intake

I have a problem with the mass air flow sensor where i had to clean it, the car ran fine afterward but soon returned to how it was before, it takes a little bit to get over 30mpg and it's hard getting up steep hills, then one day the hood started smoking and made a loud hissing noise, come to find out it was the secondary air valve and the cap on top had melted and the disk inside distorted, needless to say it had to be replaced, could a faulty air sensor have caused this?

What maintenance service is recommended at 50,000 miles.