1991 ford ranger 3.0 miss fireing in idle

had a reman engine put in my 91 ranger its miss firing in idle i also put a cardone reman distributor in it could that be the problem

Welcome to AF!

Replace the spark plugs and ignition wires. Run a bottle of fuel injector cleaner in a tank of gas. Check the inside of the distributor cap for carbon tracks.

got new motorcraft plugs and wires the coil, distributor cap and rotor button are less the six months old just put wires and plugs in last night

had a reman engine put in my 91 ranger its miss firing in idle i also put a cardone reman distributor in it could that be the problem


Intake Vaccuum? Air/Fuel mixture, search Lean misfire...

As above it could be a lean misfire. Check the hoses around the intake for a vacuum leak. Check the PCV and related hoses for a leak. Have you got a vacuum gauge? 17 inches or less indicates a lean.......

Hay thanks everyone for your help im taking the truck back tomorrow to get this sorted out Ive tried everything i can at home with the tools i have but i do think there is a vacuum leak can sorta hear it when you rev it up a little and at first take off its got to be something to do with the new reman engine install or the reman distributor cause the old engine idled great just crank bearings starting to go bad but again thanks everyone for your help this truck was my grandpas so it means a lot a i cant stand for it not to run right.






thanks

hay everyone got the truck back today turns out it was the reman distributor from advance now the truck runs great again thanks for you help

Who would have guessed a reman. distributor would be bad? Thanks for coming back and letting us know what was wrong. Your Grandpa would have been proud.