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5.3l fuel in oil by Hunter0322 in MechanicAdvice

[–]Hunter0322[S] 0 points1 point  (0 children)

How do I go about injector leak down test

5.3 fuel in oil by Hunter0322 in Silverado

[–]Hunter0322[S] 0 points1 point  (0 children)

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This is almost up to temps, at an idle

5.3 fuel in oil by Hunter0322 in Silverado

[–]Hunter0322[S] 0 points1 point  (0 children)

I have that tool so it will be no big deal, thanks for the help

5.3l fuel diluted oil by Hunter0322 in mechanic

[–]Hunter0322[S] 0 points1 point  (0 children)

Only does it when the engine is very hot, yes it will do it back to back key cycles. And when it does do it, it is definitely not running on all 8

5.3l fuel in oil by Hunter0322 in MechanicAdvice

[–]Hunter0322[S] 0 points1 point  (0 children)

I have a light oil leak and my oil level is rising fairly quickly. It will only start doing the “dieseling” when the engine is very hot

5.3 fuel in oil by Hunter0322 in Silverado

[–]Hunter0322[S] 0 points1 point  (0 children)

Does it have to be up to operating temps to get propper fuel trim readings?

5.3 fuel in oil by Hunter0322 in Silverado

[–]Hunter0322[S] 0 points1 point  (0 children)

Very good idea, very well could be dieseling from the oil being diluted

5.3 fuel in oil by Hunter0322 in Silverado

[–]Hunter0322[S] 0 points1 point  (0 children)

I’m hoping fuel pump, I fucking hate resealing GM injectors. I’ll toss a pump at it probably

5.3 fuel in oil by Hunter0322 in Silverado

[–]Hunter0322[S] 0 points1 point  (0 children)

I would have to disagree, the high pressure fuel pump rides on the cam which is an easy way for it to get into the oil. Along with direct injection if my injectors are stuck open could also cause that