Subject: | Buzzing, Rattling or Fluttering Noise Coming from Instrument Panel Area During Slow Speed Operation (Replace Power Brake Booster Check Valve Assembly) - Due to an addition of a color to help identify a part in step 6.2 and an error explaining which bulletin to discard, this bulletin is being revised and supersedes bulletin 95-T-31A, which should be discarded. |
Models: | 1995 Saturns built before and including VIN SZ371429 |
Attention: | Please distribute this bulletin to all technicians. |
Some customers may comment about a buzzing, rattling or fluttering noise coming from the instrument panel area during slow speed vehicle operation.
The noises may be caused by the power brake booster check valve assembly and can be significantly reduced by replacing with a new power brake booster check valve assembly.
To verify that the noises are caused by the power brake booster check valve assembly, refer to the procedures in this bulletin.
Important: The surrounding area where the verification procedure is being performed should be quiet, and the engine cooling fan must be Off.
6.1. | If it is black in color, remove the power brake booster check valve and grommet from brake booster and proceed to step 7. |
6.2. | If it is brown or gray in color, further diagnosis of the vehicle will be required to determine the cause of the buzzing, rattling or fluttering noise, using the Chassis Ear Tool (SA9217NE) or equivalent. |
Important: The new power brake booster check valve (P/N 21012702) is brown or gray in color and includes a new grommet.
Part Number | Description |
---|---|
21012702 | Valve Asm - P/B Booster Chk (includes grommet) |
To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System using the appropriate Electronic Labor Time Guide and Labor Operation Code H1240.