Oil pressure guage drops low when at idle but when excelerating reads normal [email protected]

Sounds more like an engine idle issue than a oil pressure issue. If the engine idle drops too low, the oil pump cannot provide sufficient oil pressure. If there is no oil light when the engine is idling normally, then there is no problem there.

It is normal for oil pressure to lower when engine is idling, but if it drops too much, it could be a worn pump. To check, have a shop hook up a mechanical oil pressure gauge and get the true oil pressure. Manufacturers often have a minimum pressure spec at idle and then at a higher rpm, also. Have your pressure checked against the manufacturer's specifications.

How many miles are on the engine? Have you tried to replace the oil pressure switch? is the engine making any type of noise due to low pressure reading?

Very first thing you need to do is install a mechanical pressure gauge on there to verify what you see on your gauge. If the actual pressure is low, then it's time to start looking inside the engine. If not, then you need to trace out the electrical problem but will know the engine is safe.

standard according to manual is @ 8 PSI I too thought that it was low. but when you drivce the presure rasies to @ 45- 50 PSI so it is normal.

Lifers will rattle if oil pressure is low. Have you screwed in an oil pressure guage to check. Should read about 20 psi at idle and 40-60psi above idle.
Causes are nemerous from low oil level to worn out engine. You dont mention mileage. Normally very good engines.

In an engine in good condition, oil pressure is a function of RPM. Higher rpm, higher pressure. Whne coasting downhill, in gear, the engine rpm will increase, hence, the oil pressure will go up, as required, and as expected.

There is nothing wrong with your engine, unless the oil pressure goes excessively high under any regime. Low oil pressure is a sign of low rpm, or under load, a sign of worn parts.

bout the oil pressure gauge its normal to go up but not to high coz u might overheat, try checking the cylinderhead gasket if there is pressure coming out, replace the gasket if needed

I suggest you pass this one by - the oil pump probably is shot and you'll get a hefty repair bill on top of the purchase price!

how low does the oil pressure drop?? is it below 40?