Hi, thought I would ask on this forum.

I have the van indicated in title, and when I am accelerating the vehicle, it feels like it is hesitent to go, very sluggish. Now, this does not happen if Van is in park and pushing on gas pedal.

I have replaced plugs, wires, cap, rotor, fuel filter, air cleaner, pcv valve, cleaned carb.

Any idea's?

It starts up fine, and feels liek its running fine when I get to desired speed.

 

Could be the accelerator pump in your carb.

 

I was able to check the acc pump by looking down the carb with the engine off, and press on the gas pedal. It did spit a squirt of gas into the carb without a problem. I am starting to think timing may be an issue, but I am unable to locate the timing marks on this engine. Any ideas where the timing marks are? I would like to check it out, and at least be sure that is correct.

 

Clean the grease off your timing cover, the reference marks are molded in, that being said I do believe your issue is fuel related.
Electronic ignition is very reliable only weak spot and infrequent is the distributor and does not sound like what your going through.

 

It turned out to be the accelerator pump in the carb, after had the carb rebuilt from a former drag racer, he also explained it also was the problem.


Thanks!

 

Lucky you.
I had the carb rebuilt twice and it still hits "the wall" when accelerating and shifting to second.

And it has done that since the day I brought it home new in 1979.