Quote:
Originally Posted by Russianblue
you should also check the little vacuum cap/caps on the back of the intake toward the firewall, around the corner from the intake boot. you replace them by hand just wedging you hand back there. you can replace with something from the generic parts rack at autozone. if the intake boot and new disa seal partially fixed the issue I’d wager you just need to keep after the vacuum leaks. ultimately the smoke test might be the best way to do that.
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with smoke test. Do both when engine is cold and when it has reached operating temp. Exhaust troubleshooting the basics before going deeper.