Originally Posted by BillBoost37
Please post your issue in a new thread that you start.
GRTP, have you checked the O-ring on the back of the upper intake? With engine movement this hose to the brake booster might flex...might only happen in gear and under load.
Yes I wiggled all the lines. The lines are even new including the fitting itself at the back of the plenum. I just put the smoker on it again and can't find a leak anymore. Every vaccuum line I disconnected during the smoke test shows smoke in those lines. The only thing that has me concerned is I had smoke coming out the oil filler cap when I removed it. Otherwise no smoke at the cap. I had the smoker on it for almost 10 minutes. The pcv valve is also new and the orings for it also new. Thought sure finding that cracked egr tube and replacing it would have cured it. I replaced th Idle air control valve & map sensor before I found the cracked pipe so that is new as well. It gets embarrassing throwing new parts at it with no results. If I disconnect the IAC while it'* idling erratically it smooths right out but idles at almost 1200RPM. It'* not throwing codes since replacing the EGR tube and the fuel trim numbers are much better, but still up there at 16%. They were up over 20 % at one point on the stft.. I'm thinking chasing a wiring issue now at the IAC.
Not sure. Need to sleep on it.
Any ideas? I'm determined to find it as it is a challenge.