2014 LT program car, Pull Me Over Red
Depends on what was wrong when you finally installed the fix kit. Did you have or check for oil in the system before starting? Is the manifold vacuum regulator blown? Was the crank seal whistling before? Did you make sure all of the ac brackets were fully tight?So after a short while of the car performing like new again, its started play up, surging as the boost comes and goes cutting in and out, sometimes boost not coming on at all and I've had the underboost code several times.
I have checked all the hoses and all joints seem fine.
However when checking the one way valve I took the hose off and there was a lot of oil in the pipe, what could be causing this?
Also this evening whilst sitting in the car clearing the fault codes I put my foot on the brake and the pedal went straight to the floor, it did this several times, if I gave it a quick rev there was pressure in the pedal again so it seems there is a vacuum leak?
It is still drawing air through, I think, the main crank seal causing the squeaking or the sound of air being sucked, but it only does this when the aircon is on, which is strange. If I pull the dipstick it stops and if I squeeze the small air hose it will also stop the squeak.