Interior - Rattle Noise From Dash

Classification:
BR98-001

Reference:
NTB98-023

Date:
April 15, 1998

Subject:
1995-98 MAXIMA DASH RATTLE NOISE CAUSED BY POWER BRAKE CHECK VALVE

APPLIED VEHICLE:
All 1995-98 Maxima (A32)

APPLIED DATE:
Vehicles built before February 4, 1998

TRANSMISSION:
Automatic transmission only

SERVICE INFORMATION

If a 1995-98 applied Maxima exhibits a steady rattle noise from the front dash area during the vehicle conditions listed below, the cause may be uneven air flow through the power brake check valve:

^ Vehicle stopped with engine idling

^ Automatic transmission in gear

^ Brake pedal depressed

^ All accessories off

To eliminate the rattle noise, new power brake check valve hoses are now available. The new hoses are longer and dampen air flow to prevent the power brake check valve from rattling.

Use the following service procedure to diagnose and repair this incident.

SERVICE PROCEDURE

1. Verify the rattle noise is coming from the power brake check valve under the conditions listed in "Service Information".

A. If the rattle noise is coming from the power brake check valve, proceed with step 2.

B. If the rattle noise is not coming from the power brake check valve, look for other causes for the noise.

2. Under the conditions listed in "Service Information", apply the parking brake, then release the brake pedal.

CAUTION: Conduct test in an open area and use wheel chocks to prevent unexpected vehicle movement.





A. If the rattle noise stops, replace the power brake check valve hoses (see Figure 1).

IMPORTANT: When installing the new hoses, make sure:

^ The orientation marks on the hose and the mating part are correctly positioned

^ There is a minimum of 10 mm clearance between the hoses and all surrounding components

^ The arrow on the power brake check valve is pointed towards the engine

^ There is no foreign material in the new hoses or the power brake check valve

B. If the rattle noise does not stop during the test, look for other causes for the noise.





PARTS INFORMATION

CLAIMS INFORMATION





Submit a Primary Failed Part (PP) claim using the claims coding as shown.