vibration at idle

[tammikm]

I have a 2001 GAGT and there is a bit of a vibration at idle, the rpm gauge doest seem to fluctuate , what could this be its not constant, its comes and goes every couple seconds.

thanks

[Dr_Kyle]

Do you have your AC on when it does this? If so, it's normal.

[schizm99]

it's normal anyway

[preed4962]

FYI

Info - Grinding and/or Growling Noise in Park on Incline #99-07-30-030B - (11/26/2002)
Grinding and/or Growling Noise in Park on Incline
2003 and Prior FWD Passenger Cars

with Hydra-Matic Front Wheel Drive Automatic Transmissions

This bulletin is being revised to update the applicable model years. Please discard Corporate Bulletin Number 99-07-30-030A (Section 07 -- Transmission/Transaxle).

Service Information
Owners of some vehicles equipped with Hydra-Matic front wheel drive transaxles may comment on a grinding and/or growling noise that is noticeable when standing in PARK on a hill or slope with the engine running and the parking brake not applied. Under these conditions, the weight of the vehicle puts a load on the parking pawl which can create a "ground-out" path through the drive axles, front struts, springs and spring towers. Normal engine noise can be transmitted to the passenger compartment through the "ground-out" path.

Owners concerned about this condition should be advised to apply the parking brake prior to shifting into PARK. This is the recommended procedure described in the Owner's Manual. Applying the parking brake first will put the load of the vehicle on the rear brakes rather than on the parking pawl.

Refer the owner to the appropriate Owner's Manual for additional details and instructions.