My 94 ranger 2.3 manual 2wd went from running good to all of a sudden bad! Pretty much since the weather has been gettin hot its been acting up.. I tested the k-ohms on the coil packs and they are good, new wires, good plugs. I've recently put a new fuel pump in it not even a year ago so I'm pretty sure that's all good. So then I did a compression test on all cylinders. cylinders 4
, 3 and 2 all had from 115 to 125 p.s.i. But cylinder 1 only had 60 :/ 1 of 2 questions. Would a valve job fit the problem? & could this possibly be caused by a clogged cat.?