Hi guys, i have a 1989 comanche, 2.5L, 2WD, 4 speed.
i bought it for $800 expecting to run into some mechanical issues, and sure enough a couple of months into driving it, it became undriveable.
It will start, and idle, but when you give it any hint of gas pedal it bogs down and runs REALLY rough, or most of the time stalls out completely.
in the condition its in i can't even get it out of the drive way. I thought it was a fuel delivery problem, but ive already replaced the fuel pump and filter.
I did notice when i was tinkering one day that if you unhook the hose that goes from the air box into the plastic piece over the throttle body, and cut off some of the air flow with your hand, it would clear up a bit and run strong.
Ive taken it to several mechanics (tow bills, parts, labor) And ive heard a million different things.
someone said crank / cam sensor, but if those were bad it wouldnt start at all right?
I'm thinking it has to be a vaccum leak somewhere, because its so random.
sometimes it will rev all the way up no problem, and sometimes it will barely idle.
Could it be something as simple as a tune up? (cap, rotor button, ignition wires)
or is the problem much larger than that?
Any help is greatly appreciated, It is my only mode of transportation and ive tried almost everything!
Thanks
-Colin