When replacing the distributor today I had to remove the intake hose, when I did I noticed there was oil in the hose. After I got the distributor in and got the truck started there was no power at all and the idle was horrid. Also when driving the intake seems to make a popping sound. Also all my plugs were foul and I replaced them all and still the problem of no power at all. Could it be a PCV valve? Anyway to check if it's the head gasket? And where is the PCV valve on a 91' I've never replaced one before.
Thanks,
Nick
Thanks,
Nick