87 blazer 350, at
as some of ya know (Doc), i had my intake manifold gasket replaced for a
leak, and egr valve replaced due to poor performance-it was working, but
telling the 'puter that it was at WOT when it was really at part
i notice that when i first start driving in the morning, or anytime its been
sitting for awhile, like after work, the temp
guage goes over about 3/4 the way - almost to the red. It will then sit
there for a minute then head on back down to its normal comfortable range.
Some parts jockey at Autozone said that exhaust gases is gettin' in to the
waterjacket and i would have to have the gaskets all redone again.
So i took it to the shop and tried to replicate it for them, but it was
still fairly warm and would not get as far deep into the temp range as
before (only got past the 210 mark a little bit as i kept givin' it gas).
they checked the temps w/ some little laser gun temperature checker at
various spots and got temps from 180 -190. Said my guage was probably off
10 degrees, and probably was not leaking exhaust into water jacket
I am just all freaked out now thinkin' the worst, because temp guage never
acted like this before and was wondering if there is any sure fire way to
check for 'exhaust gases' getting in the water jacket? I changed the
thermostat to see if that made a difference, and it did not. no coolant
disappearing, no white smoke that i can discern.
any advice is much obliged.