Oil pressure problem

[Nazrat]

That may just be that gauge to be honest, or it may be 100% normal. I can remember it reading as high as 85 at idle when cold using Mobil 1. It would spike when cold and accelerating too. Sea Foam is a solvent (not a lubricant) and I'd expect that running it for too long would cause accelerated wear and thus lower than normal pressure. Honestly before you use that gauge for more than a "It's good" or "It'd bad" gauge I'd check the calibration. I'm not sure that it is wrong, but I don't know that is is correct either.

P.S. I talked to my dad, and his 98 Trooper with the 3.5 and factory oil pressure gauge reads somewhere around 85psi at cold idle.

-Tad

[Ruflyf]

Thx for the tip tad, actually i finally felt brave enough to drive it a bit til it warmed up and just as I was about to bring it home, it dropped back to what I was use to seeing it at....I guess it clogged up a bit or something. About the sea foam, as i was reading the can, I noticed it doesnt say anything about draining it or anything...it makes it sound as though it was designed to be left in the oil. Of course I didnt do that, but am I misreading it or do they actually want you to leave a solvent in the oil for an extended period of time?

[Nazrat]

Well, I just meant that seafoam is more of a solvent than an oil. Smell it, it smells to me like carb cleaner. It works as well as carb cleaner for cleaning parts too. It may do no harm being left in. Also see what the oil pressure is in the morning once it has cooled down. It should be high again. It also could have been a sticky relieve valve, or the drain back valve in the oil filter or.....

-Tad