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.
20

Asked by market999 Aug 10, 2014 at 09:32 AM about the 1994 Ford Ranger STX Extended Cab SB

Question type: General

hello , have a 1994 ford ranger. check engine light stays on . had it in the shop replaced spark plugs wires air filter etc. Still hesitated at stop lights didn't want to run. they changed out fuel filter and pump. . the fuel gauge stop working. so they said probably bad fuel pump put a new one in. then after putting this in where you put your gas in truck found we had  cracks in the pipe so had it replaced. the gas gauge not working once again. Now get down the road truck does not want to run no more than 40 to 45 miles an hour. have to get home by that time truck was smoking under vehicle what is the problem with this truck ?

5 Answers
45,195

jamnblues answered 10 years ago

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

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market999 answered 10 years ago

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...

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Paw_fordman answered 9 years ago

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.

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Macniter answered 5 years ago

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

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