1993 Ford Ranger trouble

JLEE1966

MEMBER
1993 FORD RANGER
6 CYL
4WD
MANUAL
150,000 MILES

I have had my truck in shop several times for diagnostics check and each time something else comes up bad. When the parts are replaced there is no differance in performance. It does the samething or worse. Have replaced the mass sensor, 02 sensors, tps sensor, ect sensor, pcv valve, spark plugs and wires, iac valve, fuel pump, fuel filter and fuel pressure regulator. Have been thru all vacum hoses and they found no leaks. And truck is worse now than it was. It stalls when idoling, sometimes it dosen't start when hot. After I push clutch in and put it in gear and let the clutch out to go the engine won't rev up and go. Push the clutch back in and it will rev up(sometimes it won't rev up then either) several people told me it could be the PCM even tho it didn't show on diagnostics check. What do you think.

3 Replies

RACEFAN966

MECHANIC
5,029 POSTS

I would first do a compression test to see what shape the engine it in, and go from there.

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Saturday, May 8th, 2010 AT 9:18 AM

JLEE1966

MEMBER
8 POSTS

Had truck in shop and the compreession they said was fine. Don't know what it was, but they said it was ok. Now when they do a diaognostics check, one time something will come up bad then the next time it won't show anything. The KOEO test comes up blank everytime.I am having the ECU tested then rebuilt if it needs to be and go from there. Everytime something comes up bad and have it replaced the performance either has know change or is worse then it was before.