Diesel Fuel Filter - Look-Alike Filter Precaution

84chevy07
Number: 84-137

Section: 6C (VI)

Date: June, 1984

Subject" LOOK-ALIKE DIESEL FUEL FILTER


Model and Year:
1980-84 IMPALA AND CAPRICE, 1982-83 MALIBU AND 1982-84 CELEBRITY, EL CAMINO, AND MONTE CARLO

TO: ALL CHEVROLET DEALERS


We have been provided with samples of a look-alike diesel fuel filter for our examination. These samples exhibited a condition that could result in extensive fuel system damage. The look-alike filters that were checked did not have plastisol on the sides of the filter element. This means that the fuel would flow along the sides of the filter element without being filtered. This may lead to premature wear of the injection pump, and could even result in seizure of the injection pump head and rotor.

Master Filter Element:

The look-alike filter comes in a blue and white box that resembles the GM package. The external appearance of the filter also closely resembles the GM part; however, it has no external markings. The GM filter is marked as shown in the illustration below.

Once again, it is recommended that you use only GM parts; in this case, the filter. You must also be alert to pump damage due to the customer having a look-alike filter installed elsewhere. Damage resulting from the use of a look-alike filter is not covered by the warranty.