I have a 97 ram with a 5.2, when I come to a idle after the oil warms up I loose pressure. I changed the oil, and it was fine for 300 miles. The motor doesn't knock or anything when it drops. I'm thinking the oil sending unit. Thanks guys for any help.

 

Your gauge flickers or drops and the light comes on? and as soon as you resume to speed the pres comes back up? if so, yes it's a faulty sending unit, I have the same problem on my truck but I work at a shop 9 hours a day 5-6 days a week and when I get home from a burnin hot humid day at work I damn sure don't feel like diggin down into the back of my motor in my lifted truck to tear a faulty sending unit out I reckon when I do I'll put a set of auto meter gauges in it.

Shawn.

 

The gauges drops at idle and shoots back up as soon as I touch the gas. Tha light never comes on?

 

yeah bad sending unit you should have an oil light that pops on as soon as the gauge drops, so thats a bit odd that its not catchin!

Shawn.

 

What does it drop down to at idle? Its normal for oil pressure to drop at idle when the engine is warmed up. After warming up mine drops to 35-40 at idle and jump to 50 or so at speed.

 

it runs at around 50lbs and drops 0 at idle when it gets warm.

 

I'd give ya my new sending unit if you was local! but it'd cost more to ship the damn thing then it would be to buy a new one!

Where you located?

Shawn.

 

Thanks ofr the offer, I'm in grensburg Pa. I'm gonna pick one up today.

 

easy change, so far so good. Gonna go for a ride later to see how it works out. Thanks guys.

 

Any time ;-)

Shawn.