I just got through rebuilding my wife's 1989 Plymouth Voyager 3.0 L engine plus any thing else I would find when I had the engine out like the rack and pinion and control arm bushings. The problem I am having is one that it had before I tore into it so I it isn't anything that I did wrong. My basic reason for the rebuild was to take care of all the leaks which included a blown head gasket. Ok the problem is the engine isn't running good at idle. The first part I replaced was the air idle control valve (motor). At the price of sensors and valves I hate to just replace them if I an not sure they are defective. The air idle control valve did seem to make some difference but still if I come up to a stop light with the air on the engine will die. The van has 140,000 miles on it and still has the original fuel pump but I was told if it is bad there would be more of a high speed problem the idle problem.
Any suggestions ?
Thanks Ron in Phx