Question about 2002 Pontiac Grand Am

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I have 2002 pontiac grand am 3.4 liter. It has an intermittant crank no start. Spraying starter fluid into the intake will get it to start. It has fuel and spark. The computer, ignition, fuel pump relay, and fuel pressure regulator have all been replaced. The issue seems to happen mostly on humid days and rainy days but there is that random day when the conditions aren't like that. Thanks for your help.

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  • Pontiac Master
  • 3,204 Answers

Random no crank could be a seal has gone on a sensor plug you will need to check the connection plugs on the sensors, check all the plug connections and especially the co2 sensors as they get most of the road dirt on them while driving, clean the connections with emery cloth. any white or cream colors on the connections clean off. and replace the rubber seal.

Posted on Jul 29, 2017

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6 Suggested Answers

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Posted on Jan 02, 2017

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polarcycle
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SOURCE: 1999 pontiac grand prix gt 3.8L v6 cranks wont start

Is the security light on? If you have spark and fuel, it should run. Any codes? Could be bad crank sensor or cam sensor.

Posted on Mar 07, 2009

  • 491 Answers

SOURCE: fuel pump location 2001 pontiac grand am

The fuel pump is in the fuel tank.Sit in the car.....turn on the ignition switch to run.....listen very closely to the rear of the car...or have someone kneel down by the back wheel.....you should hear a "prime cycle"......the pump running for 2 or 3 seconds if the key was off for 15 seconds before trying this.If you hear silence you most likely need a fuel pump.Before pulling the tank down....check for power on the gray wire at the fuel tank connector just ahead of the rear axle under the car.Check for power with a test light that will last for 2 to 3 seconds as you turn on the key to run.Power means you really most likely need a pump.No power means you may need a fuse or a fuel pump relay.

Posted on Aug 11, 2009

  • 881 Answers

SOURCE: 20000 grand am won;t start turns over but won;t

Well then if no pressure at fuel rail then go to pump and in line filter as the in line filter might be the main problem but the pump pressure can also be faulty if filter is bad so check it out and let me know how you get on. Ron

Posted on Nov 02, 2009

Testimonial: "thanks but the fuel filter was changed a month ago. and theres fuel up to the regulator. i'm thinking bad regulator or passlock sercurity issue again"

  • 1857 Answers

SOURCE: My 2002 Pontiac Grand Am will not start. I have a

If it is a security issue a code will be stored. Until you check that a code is not stored then all suggestions will be a waste of time.
You really need a diagnostic scanner hooked up to see whats going on.

Posted on Dec 16, 2009

  • 2 Answers

SOURCE: I have 2002 pontiac grand am 2.2 liter. Car shut

Could be the timing chain/belt. Common problem with 2.4 engines.

Posted on Aug 12, 2010

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1 Answer

ISO definitive eng compartment pic/diag/schematic of fuel line & line-pressure valve/access, bleed disconnects + alt intake spots 4 starting fluid, beyond air filter intake.


to remove contaminated fuel , pull a fuel line of the fuel manifold and run the pump for a few seconds
not firing is sensor , immobilizer , ignition module problem but you stat that it fires on starter fluid so that cannot be right
starter fluid is a d good way of damaging the engine
a better way is to find and fix the fault
now to try and sort out what you are saying
it is cranking so the starter is good
it tries to run on starter fluid so there is spark to the plugs
it will not run and that indicates a lack of fuel to the injectors
a lack of fuel indicates
1--- a bad fuel pump
2--a vacuum in ht e fuel system from the tank not venting properly(EVAP system)
3--- fuel pressure regulator not working and providing pressure to the injectors
4--- bad injectors --- need cleaning
dump the starter fluid , buy a workshop manual and fix the problem properly

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1 Answer

2002 grand am won't start just turn over


have you tried spraying starting fluid into the air intake valve of the engine to see if it starts? if it does you need a new electric fuel pump.

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1 Answer

Fuel pump


replace the fuel pump relay. if no help you will most likley need a new fuel pump.

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