Free eBook Download

Content Inside :

A customer brings a vehicle in for a routine service and a belt noise condition. Without diagnosing the symptom, the technician recommends and installs a new serpentine drive belt. All is quiet in the engine compartment. The customer pays the invoice and all seems well. Weeks later, the belt chirp noise returns and so does the customer. The technician warranties the belt, eliminating the belt noise condition. When the noise symptom repeats itself, the service manager is ready to change belt suppliers. The odds are the vehicle has some problems inherent by design, or something is out of alignment. Unless the technician takes the time to accurately diagnose the reason for the noise condition, the symptom will continue to plague the system. For a belt noise condition, the first check should involve a belt-to-pulley alignment check. Verify that the power steering pump pulley is pressed onto the pump shaft in the proper position. While the pulley should be flush with the end of the pump shaft, it can be repositioned on the shaft to achieve the proper belt alignment. Vehicles produced after June 2004 have the revised AC/power steering pump mounting bracket. The rear power steering mounting bracket on all vehicles prior to and after the mentioned production date may require a modification. This modification involves drilling larger holes into the rear mounting bracket to ensure proper alignment when installing the mounting bolts. GM TSB 05-06-01-018 illustrates the proper procedure and necessary mounting bracket part number, where applicable. Chrysler acknowledges that a belt chirping or squeaking condition may be present on the 2004–2005 Pacifica with the 3.5L engine, due to misaligned pulleys. The noise may be present when first starting the engine, while idling after the warm-up, or while driving at higher engine speeds. The first step involves examining the power steering pump pulley to determine if it is flush with the end of the pump shaft. If not, it will be necessary to reposition the pulley. In order to attach a puller to the power steering pulley, it will be necessary to loosen and raise the engine a few inches from its mounted position. This requires attaching an engine support fixture to the left top side of the engine.

Tags : power steering pump, belt alignment, power steering pump pulley, proper alignment, routine service, mounting bracket, proper position, engine compartment, ac power, pacifica, tsb, shaft, bolts, invoice, warranties

If you see unrelated pdf files with the description or copyrighted material published, please report to us, we'll correct/delete it it as soon as possible.NONE OF THOSE MATERIALS ARE HOSTED IN THIS SERVER NOR UPLOADED BY ME IN SOMEONE'S SERVERS.  Read our DISCLAIMER for more detail.

We are neither affiliated with authors and brands nor responsible for its content and change of content.

Information contained herein is provided "as is" without warranty of any kind, either expressed or implied, including any warranty of merchantability or fitness for a particular purpose. In no event shall ANYONE be held liable for any loss of profit, special, incidental, consequential, or other similar claims.