20 Most Recent 2004 Pontiac GTO Questions & Answers

This sounds like an Alarm issue witht he information you posted. If you had an Alarm installed after you bought the vehicle disconnect the power wire to the alarm and see if the vehicle will start, disconnecting the alarm power wire will stop the alarm kill switch from interfering with your vehicle starting. This assumes that the vehicle is at least turning over. If it's not turning over at all, try jumping the vehicle by disconnecting the battery positive terminal and connecting the jumper cable directly to the positive cable and a good ground. If the vehicle cranks like that you have dead cells in your battery and the battery needs to be replaced. If it still doesn't crank try using jumper cable to apply direct power to the starter from the positive terminal to verify that the starter is working. If the starter works and the battery is good you have a bad solenoid or ignition switch. You will have to test both individually.

From the look of ,it should be mounted to the fire wall along side of the brake master cylinder .

On this website you find fuse box diagram and description for Pontiac GTO (2004) Pontiac GTO 2004 2006 fuse box diagram Auto Genius

drain and clean the fuel tank
clean the pickup gauze on the fuel pump
replaced the fuel filter
if its got carbs drain and clean the fuel bowls
remove the spark plugs and leads to check for moisture
clean and gap the spark plugs
remove inspect and clean the distributor cap

If you have only replaced the heads you shouldn't have to worry about TDC unless your replacing the cam but to answer the TDC question put you pushrods in the #1 put finger on the spark plug hole turn engine till air comes out the hole and both pushrods are all the way down this is your compression stroke

Sounds like an exhaust leak coming from the manifolds.

some cars have a bit of a temper and can sometimes growel at you

you need an OBD code reader. If you have a smartphone you can buy a cool little tool that links an app to teh car with bluetooth. Look for ELM 327

turn on the key without starting it, then press the gas pedal to the floor 3 times and it should reset. If not see owners manual

where your front wheels turned at a sharp angle when you shut off car-the locking system may be have pressure on it-try pulling or rocking the steering wheel back and forth while applying pressure to the key-you may be able to feel the key trying to move-put more pressure on the steering wheel in that direction-hope this helps-cheers Denny

check o2 sensor wires make sure their not melted

I tired a new switch becauuse of th seat not going foward or backward, the other positions worked. The module needed replacing, the mechanic ordered a new one, but it was a different number. He could not fing that module for the passenger power seat1 any suggestions?