Post by sailormike on Sept 5, 2019 11:02:31 GMT -6
This is driving me crazy! It starts after I have driven the car for about 20 mins. and approach a traffic signal having to come to a stop. While driving the oil pressure is reading in the 30lb range. As I slow down the pressure all of a sudden drops to a zero reading from around the 12lb. range, which triggers the warning alarm. As I slow I have to put the car in neutral from the drive position.That causes the oil pressure to go to around a 7lb reading and stops the alarm. This will go on for the rest of my trip. Only to repeat every time I drive the car. We have replaced the "Oil Pressure Sensor" and had an oil pressure test performed showing, in spite of the oil pressure readings with the instruments on the dash, the oil pressure is fine The only other thing we have a problem with is the RPM gauge, that needle is jumping all over the place. My car is a 1999 with the 4.0 motor and about 145,000 miles.
Post by paulaurora on Sept 6, 2019 13:04:56 GMT -6
Oil Pressure Sensor is defective or not fully screwed in or bad connector. Temp fix unplug the sensor and it will not give you anymore warnings. But i deff would try to replace connector and make sure its AC delco part not other brands i had a lot of issues with my 4.0 with other brands.
1998GX 168,000 Intrigue-RIP total loss. 1999 Intrigue GLS 215,000 mil-Trade it in for Aurora 2001 Aurora 4.0 2nd owner! miles 22,000~170,700- Sold 2003 Aurora 4.0 3rd Owner! miles 130k 2018 Volvo s90 Inscription 18,000 miles