I just put in a refurbished engine in my 03 z, it has a vacuum leak, so im going to smoke it out tomorrow, but for some reason the oil pressure is low, like 5 psi at idle, is there something internally wrong or could it be the vacuum leak causing low pressure, it also smells like its burning oil.

 

whats your definition of smoking it out? are you seafoaming the booster?

sounds like you got a lot going on, could you explain "refurbished" and is there any warranty on that work, or possibly the install where you can get some hands on help?

before smoking it out?

 

lol no sea form, smoke test the plenum to find out where the smoke comes out in the vacuum lines

 

Never heard of a refurnished engine.....

rebuilt = yes

refurbished = Television

Low oil pressure is either "low oil" or worn bearings.

 

I'd be concerned about the low oil pressure reading. If accurate, that "burning oil" odor could be the main or rod bearings burning up with only 5# of oil press. Vacuum leaks aren't going to explain that low a reading.

VQ35DEs are stout engines, but low oil pressure will kill one FAST.

 

its a used block but all new internals, it was reading this oil pressure since i got it back on friday, could it be the wrong oil from the shop? i dont know how the bearings would be bad, there brand new

 

So the bottom end was just rebuilt? Wrong oil would not make the PSI that jacked up. Probably something internal especially if it was that low on first startup.

Did you buy it from someone that just said it was a rebuilt bottom end or did you pay to have it rebuilt? Big difference.

 

got it from a company called 123engine

 

^ uh oh.....not the best place, read some consumer reports. Not looking that great. EBAY or directly? I guess it doesn't matter.

http://www.123engine.com/123EngineWarranty.pdf

 

no dont tell me that, lol, well i hope i can figure out whats going on with it tomorrow

 

I hope it works out for you. Any updates?

 

Are you reading the car gage? If so, the reading isn't accurate since the interval of first two lines spans 30psi with NO increments shown between!
I know my 08 reads very low at idle..I would estimate 10-14psi? and that's NORMAL. What are you showing at COLD start up? Should be close to 90 PSI.

 

Boom?

 

sometime the oil you use will affect oil pressure readings.