1994 ford pickup ranger no power hesitates no more than 45 miles and hour got home was smoking under hood thought it was going to catch on fire.

maybe a plugged catalytic converter- and find some mechanic who doesn't just GUESS what's wrong-

thank you so much for this information. we thought it might be the catalytic converter. could you answer this for me . I told the man at the shop my truck had a pcv he said it did not have one. I told him yes it did. When we took vehicle back in to get the new fuel filter put back on he said you know your truck does have a pcv. He said he took it out and cleaned it. Just wanted to know if your suppose to clean them. instead put a new one in? thank you so much for all the answers from both of you...

Jim is pretty much right on. Also, depending on which engine it has, it should have an egr pressure differential sensor, and has two silicone hoses going to it from the metal tube to the egr. Should be able to pull ont loose, and connect a 10 pound pressure gage. Run engine, if you see over 2 or 3 pounds, converter has clogged. Any pressure over that shows its clogging up. Just a simple way to check the back pressure without crawling under.

girebiut no power in no power rim good

Had stall, running crappy problem w/94 Ranger v-6. Turner out to be MAS. Mas Air Flow sens. Located on to of air intake chute. Find mechanic who has diagnostic meter that can teat older model vehicles . Gary, Eastern Shore, VA