Edmunds Answers

Voted Best Answer

  • avatar zaken1 08/28/09 12:03 am PST

    If your engine oil level was below the "add" mark on the dipstick; the oil would get too hot and thin out while driving, and that would cause the light to come on. So would a cooling system that was overheating, or the use of engine oil of too light a viscosity. But if you are using the right oil type, the oil level is up, and the cooling system is running at normal temperature; the most common cause of this problem is a defective oil pressure sending unit; so I would arbitrarily replace that part. If replacing the sender does not correct the problem; the oil pressure relief valve may be sticking open; or the relief valve spring may have lost tension or be broken. A clogged oil filter or oil pickup screen could also be the culprit; as could an internal oil leak from the oil pump discharge side.

Answers

  • MrShift@Edmunds 08/27/09 11:52 pm PST

    You had better check your oil level right away and let us know what you find.


  • zaken1 08/28/09 12:03 am PST

    If your engine oil level was below the "add" mark on the dipstick; the oil would get too hot and thin out while driving, and that would cause the light to come on. So would a cooling system that was overheating, or the use of engine oil of too light a viscosity. But if you are using the right oil type, the oil level is up, and the cooling system is running at normal temperature; the most common cause of this problem is a defective oil pressure sending unit; so I would arbitrarily replace that part. If replacing the sender does not correct the problem; the oil pressure relief valve may be sticking open; or the relief valve spring may have lost tension or be broken. A clogged oil filter or oil pickup screen could also be the culprit; as could an internal oil leak from the oil pump discharge side.

ADVERTISEMENT

Top Oil Experts View More

Rank Leader Points
1. MrShift@Edmunds 1215
2. karjunkie 1070
3. zaken1 555
4. texases 460
5. Stever@Edmunds 420
6. 0patience 365
7. coolrunning 200
ADVERTISEMENT