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Pontiac Grand Prix Questions

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questions
Headlight would not shut off. Battery died. Fuse box very hot. #12 fuse smoking. Replaced the fuse and the check engine light went off. Now, four days later the engine light back on. Is this part of the recall?
sometimes when u crank the car and put in drive the t.c light comes on and acts real sluggish in drive but in rev. its fine.when u shut it off and crank it again it would be fine,but now it like that allthe time
i can turn the air on an you here the air trying to blow through vents but it barely comes out
It also has like oil leak all over the bottom, my coolant light keeps coming on but it aint empty
When I step on the gas I lose oil. Pressure and oil squirts out the bottom
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?
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