I have a 2003 grand am gt 3.4 just put a new engine in it ans it will never start first try and sometimes it wont start at all for about an hour I have changed the crank and cam sensors idle air controlled tps maf map ignition modual all three coils plugs and wires new computer and bcm IV pulled the relay for the AC I have 55psi fuel pressure and its not leaking off at all new fuel injectors and fuel pressure regulator I'm about ready to burn this car please help!!!!

10

Asked by May 27, 2013 at 06:18 AM about the 2003 Pontiac Grand Am GT Coupe

Question type: Maintenance & Repair

10 Answers

3,560

You need to be more specific. Will it crank, but not start? No cranking at all? Do you have spark, fuel when this happens?

2 of 2 people found this helpful.
10

it will. crank over it sparks good and blue fuel pump is working but when it wont start I can pull the plugs and they will be compleatly dry

3,560

Check for pulse at the injectors with a noid light when it wont start. Could be an ignition switch or VATS issue.

1 of 1 people found this helpful.
10

it has no pulse at all to the injectors the key is realty lose in the ignition I have to realty rifle with it to get it to turn could that be an isue?

3,560

absolutely. I would try replacing the lock cylinder and ignition switch.

10

how do you replase it and will it mess with my security when I do it

3,560

google the procedure. its been covered a thousand times.

10

ok I went out there and now I can't get it to not start one first crank it will start for just a second then die and the security light stays on the second time I crank it the light goes off and it fires right up and runs like a dream could that be the switch also?

1 of 1 people found this helpful.
10

it never fails its always the second crank to

10

ok I changed the switch and no difference :(

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