1986 Ford F150 I have 2 problems

89,000 MILES • V8 • 2WD • MANUAL
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MRB5629
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  • 1 POST
first my engine is a 351M. lately it was loosing power at about 45 to50 mph,bucking and lurching. Took the catalytic converter off,did not improve. Changed the fuel pump and filter,No change. Next was the ign.module,the brain and all injectors. I have not had it 0out on the road yet to check as it now races everytime I push in the clutch to shift. Please help me as I have just about reach the end of my rope! Thank you.
Jul 20, 2008 at 9:51 PM
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BMRFIXIT
  • ✓Experienced Mechanic
  • 19,053 POSTS
Are we sure that the clutch isn’t slipping
also I would check fuel pressure using a gauges
check for vacuum leaks and throttle body for the high rpm
Jul 20, 2008 at 11:45 PM
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