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Idlew Air Control Valve 1996 5.8L
#1
Confusedcratchhe::banghead:Hello. I know someone knows more than me and can help. I had the engine rebuilt on my 1996 5.8l. I installed forged pistons, cam, roller rockers, trick flow heads, full length headers, 26lb injectors, new air meter, arp head studs and a load of other new parts. I have had a lot of issues with vacum leaks/ lean codes (p0171 & P0174). On the other hand, I have had to replace the IACV twice. after 500 miles +/- it will stick around 2000 rmp and not let the idle drop. When I disconnect the IACV it runs great with readjustment to the idle. Any suggestions? Thanks
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#2
Why is it failing? Is it getting contaminated with carbon?
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
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#3
The timing was off and prevented it from work. Once the timing was adjusted everything works great. Thansk again.
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