Hi everybody.
In another thread, I was talking about replacing my A/C evaporator and then replaced the intake manifold in my 94 Suburban. The truck ran excellent before I got my grubby little hands in there.
Now I replaced the manifold but the truck now runs like total garbage. It will start and seemed to start reasonably well but felt like it was running on 7 cylinders. But worse, it pops when I try to rev up the engine. It will speed up ok but I get a few pops, still feeling like it's running on 7 cylinders. [the pops are out the throttle body, not out the exhaust] But when I try to drive it, it runs like total garbage. Poor acceleration with lots of popping but it does eventually speed up, when it can catch some RPM. When trying to accelerate hard [to the floor] at about 40 kph, there is as LOT of very rapid popping and lousy acceleration. Sometimes it won't accelerate at all, sometimes it will. I set the timing exactly as it came out then I tried to vary it both ways with mixed results. Nothing was altered in any way from before. BUT I did notice one thing, the distributor shaft seems to have a lot of play. Probably needs to be replaced but the truck ran excellent with the distributor as it is.
Does any of this make sense to anybody?