U dont have ur coil wire plugged in all the way make sure there all snapped down good if it dont work ur firing order isnt right figure out firing order and puit plug wires on correctly
SOURCE: misfiring
Well there are several things that could cause this problem...
1. one of the coils may not be firing.
2. the ignition module could be bad.
3. the mass air flow sensor could be tellign the car to run rich (too much gas)
4. if the car is equiped with a map sensor it could do the same as a mass air flow sensor.
5. fuel pressure regulator could be leaking at vacuum port drawing in more fuel than needed.
6. the computer itself could be bad as well.
The car either has a map sensor or mass air flow not both. The mass air flow would be right after the air cleaner housing usually a 4 wire connector. map sensor is normally located on the rear of the upper intake manifold with 1 vacuum line going to it with 3 wire connector. Hope this helps.
SOURCE: 2004 Pontiac grand prix gtp won't start- fully
it is the alternator brushes cheap and tanks little time to be replace and the brush who is clicking
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