I hooked an analog gauge and it reads the same as the dash gauge. It sounds like others have seen these motors do do the same thing. It still concerns me. If anyone has anything to add, it would be appriciated.
I have a 99 tahoe (5.7L) that seems to have low oil pressure. Once it is warmed up, the pressure drops to about 20 psi on the dash gauge, when it idles. It gets up to around 40 psi at cruising speeds. I dont think it was this low at idle in the past because I would have noticed it. Oil...
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