Oil Pressure Gauge - Reads In the Red Warning Zone

88chevy05

Number: 87-275-8C

Section: 8C
Date: FEB., 1988
Subject: OIL PRESSURE GAUGE READS IN THE

RED WARNING ZONE AT HOT IDLE


Model and Year: 1986-87 CAMARO WITH GAUGE OPTION (U21)
TO: ALL CHEVROLET DEALERS


Some 1986-87 Camaro models may have oil pressure gauges that read in the red warning zone when the vehicle is operated at a normal hot idle condition.

The red zone on the oil pressure gauge extends up to approximately 10 PSI (70 kpa) while a normal oil pressure at hot idle could be as low as 6 PSI (41 kpa).

Check the engine oil pressure with an external gauge. If the measured pressure is greater than 6 PSI at idle, and moves higher with increased engine speed, the oil pressure is normal. Replace the tach and oil pressure gauge assembly with one that has a reduced red warning zone. Use the following chart to determine the correct part numbers.

Part Number Engine

25112205 5.0L (Codes H and F)
25112207 5.0L, 5.7L (Codes G and 8)
25112090 2.8L (Code S)

Use applicable labor time and number.