Riviera V6-231 3.8L VIN L SFI (1991)
Oil Pressure Gauge: Customer Interest
Engine Oil Pressure Gauge - Erratic or High Pressure
Bulletin 91-6D-3
Date Jan. '91
Ref. No. 91-068-6D
Corp. Ref. No. 006407
SUBJECT: 3800 V6 ENGINE OIL PRESSURE GAGE ERRATIC OR DISPLAYS EXTREMELY HIGH PRESSURE
MODELS AFFECTED:
1991 PARK AVENUE/ULTRA WITH (UB3) 1991 RIVIERA/REATRA 1990-91 REGAL WITH (UB3) (U21)
CONDITION:
Some of the above listed vehicles may experience a condition where the oil pressure gage may be erratic or display very high pressures. This is due to an
internal intermittent contact within the sending unit.
CORRECTION:
To correct the above condition, replace the oil pressure sender with part number 3522741.
Parts are expected to be available on January 28, 1991. Until then normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP
orders will be accepted. GMSPO will make every effort to obtain parts.
All parts will be placed on 400 control to waive VIP surcharges. However, the part will be shipped premium transportation at dealers' expense. All other
order types will be canceled as incorrectly ordered while the 400 control is in place.
WARRANTY INFORMATION:
Use currently available labor operation and time for the model being serviced.
