Post
by cegammel » Wed Oct 15, 2014 5:07 pm
Well...this is embarrassing. I replaced the plug wires (two of the old ones were out of Bentley specs)...marked improvement, but still same coughing issues as before. I replaced the coil, also out of spec, with again, marked improvement...but still didn't fix the issue. Then, I pulled the fuel pump relay, and cleaned each side, then reinstalled. Then, each fuel injector plug, cleaned, pulled down the boot, checked the connections, and reinstalled. That apparently did part of the trick. No more stumble, no more surging...but...new problems. So, I had previously adjusted the mixture screw a bit, and fixing the none firing fuel injector required a readjustment. That done, the engine sounds pretty good. Timing is on, idle is on, mixture looks good (I'm not so good at this one).
But, I still have a hesitation when I open the throttle, and the van just feels very weak. I really wonder now about a slipping clutch. If the rear seal on the transmission was shot (I have a drip from the rear of the transmission), would it leak enough juice to wet the clutch? would that cause the wheels to not keep up with the engine?
This transmission is used, but newly installed (in May). It works well, but now this drip... If it helps, the donor van had 114K miles on it, supposedly original transmission; I've put about 900 on it.