Mechanics

WHY IS IT RUNNING ROUGH AND HAS NO POWER IN 4TH AND 5TH GEAR

1992 Ford Ranger • 15,300 miles

I have changed fuel filter fuel pump plugs wires maf sensor erg and erg sensor catalytic converter timing belt pcv valve checked clutch and transmission. Please help I am going crazy trying to figure this out
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Goingcrazy
May 27, 2012.



Start with a compression test to verify the motor is good.

Roy

ASEMaster6371
May 27, 2012.