Emissions - Pulsation Noises From EVAP Purge Line

Date: July 9, 2007

Order No.: P-B-47.30/42a

Supersedes: P-B-47.30/42 dated October 12, 2006

Group: 47

Revision History

Revision Date Purpose

A 7/9/07 VIN Number Included

- 10/12/06 Initial issue

SUBJECT:
Model 221.171 (Models without ABC suspension), Up to VIN A090734

Pulsation Noises from Purge Line





If you receive customer reports in the above model vehicles of pulsation noises from the purge valve, it may be due to the pulsating flow from the activated charcoal filter to the engine that causes the purge line to vibrate. These vibrations are initiated through mounting points or contact of the line on the body and may be heard as pulsation noises (ticking noises) inside the passenger compartment. To remedy, install a fluid reservoir (Figure 1) between the purge valve and the line to the activated charcoal filter.

Note:
This modification does NOT apply to vehicles equipped with ABC suspension.

Note:
The hose (A221 476 00 11) is to be replaced with a fluid reservoir package (Figure 2 above).





Parts Information

Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair.





In Case of Warranty, use the table.