Kodiak2314

I have a reman motor from gm for 2001 gmc Sierra with 600 miles on it. Got a cam and longtubes as well. Today I got a tune and I notice I slight brownish white smoke when you get on it it was also doing this before is this fuel injectors they have 300,000 miles on them? It made 283 HP at wheels with a 212/218 is that average? Thanks

Kodiak2314

turboal1

I would pull the plugs and look at them, check the PVC system also.

Kodiak2314

I can pull the plugs to have a look but the motor came with new plugs. The pcv valve is less than a year old.

Wolftrk99

iTrader: (5)

It sounds like oil getting into the combustion chamber.... Did the engien come with valve covers... The pcv valve isnt actually a pcv valve on these engines the pcv system is part of the valve covers... The pcv "valve" in the valve cover is usually just a dummy valve....

Kodiak2314

Yeah it came with valve covers. I had a cam installed and valve springs. The engine man told me he didn't have to take the heads off he just turned the engine up side down?

Wolftrk99

iTrader: (5)

If he turned the engine upside down there may have been oil in the pan (if it was tested)that got into the combustion chambers, it should clear up... There was no reason to turn the engine upside down!!

Kodiak2314

I pretty sure it didn't come with oil in it. Don't know why he did that he said heads may have to come off and the when I picked it up he said he didn't have to he just rotated the motor upside down.

MrHorsepowerLSx

iTrader: (13)

Are there cats in that exhaust system ? Usually vehicles that don't get floored often build up desposits in the exhaust system, and when under WOT "clean the pipes". You can see this on the most on vehicles on the highway passing/getting onto highway

Kodiak2314

The mufflers are 12 years old flow master. But I installed high flow cats when I installed the headers.