Well I finally figured out my problem with the K5 blazer stalling out after it warmed up.............(timing was out of wack).
Now that....that problem is fixed, truck drives/runs fine.....accept for........the idle
When the truck is started up COLD........trans in gear/foot on brake........motor idles nice and smooth....
but as it WARMS up............the idle gets alittle rougher..........and once warm it will at times idle rough enough that my Blazer at a stop, will shake alittle (annoying as fk)
dont know whats causing it........ my 95 chevy runs nice and smooth.........and my Blazer shouldnt be any different.
timing right on? still could be off a lil.
lil more info obout the blazer bud? fi? carbed?
Quote from: Jjay78 on November 28, 2011, 04:59:32 PM
lil more info obout the blazer bud? fi? carbed?
90 tbi
what's your warm idol rpm?
Quote from: Jjay78 on November 28, 2011, 05:45:38 PM
what's your warm idol rpm?
that i couldnt tell you, no TACH in my blazer.
it has me stumped................cause it idles so smooth when the motor is cold.........but when warm it will idle p00 p00 in gear/foot on brake.
lock up converter staying locked up? or the electronic advance under the cap isnt working?
stock build? or is there a Cam in it
Quote from: J.C. on November 29, 2011, 11:03:33 AM
lock up converter staying locked up? or the electronic advance under the cap isnt working?
I wondered that too, about the converter........havent looked into it though.
Quote from: puddlejumper on November 29, 2011, 01:26:39 PM
stock build? or is there a Cam in it
Was told it was a newer 350 (which by the manifolds it has on it, it is, and as far as I know its stock.
Cam, lifters, low oil pressure not keepin the lifters pumped up - oil gets thinner when warm, vacuum leak, egr maybe..
Sticking egr valve very common problem on tbi motors.