Question about 2002 Pontiac Sunfire

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Loud rattling noise when car is on, but the car shuts off when I hit the gas

The car was working just fine, but then all of a sudden the car just shut off. The engine would still turn over, but there is a loud rattling (not heat shield, I know what that sounds like, and this isn't it). What is it, and what can I do to fix it?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2004 Pontiac Grand Am SE1 loud noise

It is probably the wheel bearings they have been known for that.

Posted on Jan 26, 2009

  • 11 Answers

SOURCE: Loud tapping noise from 2005 grand prix 3800 engine

It could be you are low on oil;using the wrong oil;a possible loose connecting rod,or,maybe a bad or stuck lifter.

Neil

Posted on Mar 15, 2009

  • 1 Answer

SOURCE: '97 Pontiac Transport-instrument panel lights out, dinging sound

This shouldn't effect the tail lights but the dimmer switch on my vehicle was defective and made the panel lights work intermittently. No further problems after the switch was replaced.

Posted on May 14, 2009

tneubauer
  • 437 Answers

SOURCE: Pontiac G6 gas pedal rattle

Is this almost like a metallic buzzing sound?

Find the catalytic converter under the car it should have a shield on it. Use a broomstick with the car running and hold the shield still and have someone give it a little gas. Just move from shield to shield until you find the offending shield.

Don't touch these with your hand as they can get hot fast.

Most parts houses sell a very large hose clamp to go around these shield for about $10, they will know exactly what you are looking for.

Posted on May 30, 2009

emissionwiz
  • 75066 Answers

SOURCE: Grand Am clicking noise

I really doubt this can't be fixed, the car is 8 years old and most likely it may have some worn components in the front end like the Constant Velocity joints, also have the btrake pad anti rattle springs replaced or checked for condition, the brakes can make this noise if the springs loose there tension.

Posted on Aug 26, 2009

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1 Answer

What would cause popping when I turn it off?


a shredding fan belt?
why not get the car checked out.??? buy a SHOP
you shut the engine off, and when you do, that it coasts to a stop
and did the noise come from the engine bay? and did the noise happen as engine was coasting to its natural stall or after that?
noises that happen, not moving are easy to find. so
get a competent mech, to find it. it be easy for them.

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Very hard to know without actually hearing the vehicle but,,,With what you describe,the cat/converter 'may' be making the sound.With the car off and engine cool,get under and give the cat/con a really give shove or hit.The insides of them do corrode and the internals make a very loud rattle.If this isn't the problem it will let you see if there is a loose exhaust mount that may also make a rattle.(The cat/con sound is like there is a very loose metal plate hitting something)Its actually the internals of the cat. that have broken loose and rattling inside it.Hope this helps

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