Just ordered 2 crankcase breather valves for my 645ci and a new o rings for the vacuum pump as my car isn't producing any misfire codes after a full new set of spark plugs but the vacuum pump is loud and my idle revs still move around. It's drivable but I don't want to risk damage. I'm hoping these fix the issue or I'll be in for a rather large repair bill it seems!
In January the car had a new rocket gasket done, both ccvs and a new vacuum pump, plus new suspension. It through 3 misfire codes at me so I replaced the plugs as they looked crappy whilst the coils looked fine. The vacuum pump sounds like a bag of spanners when the car is on idle but I can't find a leak. There's absolutely no oil anywhere either.
Properly got me stumped!
In January the car had a new rocket gasket done, both ccvs and a new vacuum pump, plus new suspension. It through 3 misfire codes at me so I replaced the plugs as they looked crappy whilst the coils looked fine. The vacuum pump sounds like a bag of spanners when the car is on idle but I can't find a leak. There's absolutely no oil anywhere either.
Properly got me stumped!