Cavalier L4-121 2.0L VIN B 2-bbl (1983)
corrosion of the Pulsair check valve assembly can permit exhaust gas to flow upstream to the plastic shut-off valve possibly melting the valve. It could
then be possible for a piece of the melted shut-off valve to be drawn into the air cleaner, and subsequently into the throttle body where it could lodge
against the throttle plate. If this condition were to occur, the engine may not return to idle upon release of the accelerator pedal. Although the vehicle can
still be stopped with the service brake, loss of accelerator control could result in a vehicle crash without prior warning. WHAT WE WILL DO
To prevent this condition from occurring, it will be necessary to inspect and, when necessary, replace the following:
A.
Pulsair check valve assembly with an assembly incorporating stainless steel components.
B.
Pulsair shut off valve with a newly designed valve. This service will be performed for you at no charge. WHAT YOU SHOULD DO
Please contact your Chevrolet dealer as soon as possible to arrange a service date. Instructions for making this correction have been sent to your dealer.
It is estimated that parts will be available approximately November 17, 1987. The labor time necessary to perform this service is approximately
thirty-five
(35) minutes, but please allow some additional time for your dealer to process your vehicle. Your Chevrolet dealer is best equipped to obtain parts and
provide service to ensure your vehicle is corrected as promptly as possible. If, however, you take your vehicle to your dealership on the agreed
service date and they do not service this condition on that date or within five days, we recommend you contact the nearest Chevrolet Branch
Office. The Branch Office will assist you and the dealer in getting your vehicle corrected. The locations of the Branch Offices are attached to this
letter for your convenience.
After contacting your dealer and the Branch Office, if you are still not satisfied that we have done our best to remedy this condition without charge and
within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 400 Seventh Street, S.W.,
Washington, D.C. 20590, or call 800-424-9393 (Washington, D.C. residents use 426-0123). The enclosed Owner Reply Card identifies your vehicle.
Presentation of this card will assist in making the necessary correction in the shortest possible time. If you have sold or traded your vehicle, please let us
know by completing the postage paid reply card and returning it to us. We are sorry to cause you this inconvenience; however, we have taken this action
in the interest of your safety and continued satisfaction with our products.
