1986 Ford Ranger power

150,000 MILES • 4 CYL • 2WD • MANUAL
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KELLYDALE
  • MEMBER
  • 1 POST
My truck was ran on 3 cylinders for about 3 miles and ever since it will not run properly. We have chaned the wires and plugs, rotor and cap, oil and filter, air cleaner, the o rings on the fuel injectors and cleaned the injectors, timed and retimed it. We have done everything short of taking off the head, could it be a valve? Or any other sugestions. It was running fine before and now it keeps sputtering like its out of time and has no power.
Mar 4, 2008 at 5:25 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
You need to compression check this engine...This will tell you if it's a mechanical problem, like burnt valves, or rings...Also put the #1 cylinder on TDC of compression stroke, see if the pointer on the crank pulley lines up with 0? if not your timing belt jumped a tooth or two...
Mar 4, 2008 at 5:48 AM
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