Question about 1994 Ford Thunderbird
Burning up plugs. suspect egr valve but cant get any tools to the nuts on the tube. how do i get it off? also hear a hiss when on a load and then miss's. About a year ago i suspected ignition system problems and replaced coil packs,plugs twice,plug wires,o2 censers, mass air flow censer, coolant censer and 2 injectors. Finally started getting raw fuel in the exhaust brought it in and found out it was a bad computer telling a fuel injector to stay open. Replaced computer with NEW one. Got it back and had small miss only during hard acceleration and continued to get worse. Book says egr valve. I hear some kind off vac leak only when in drive and accelerating but can not find one. only has 105,000 miles. HELP!!!
Too much fuel should not create all these problems. Do you have the plug problem on all cylinders? Sounds like you have spent a considerable amount changing parts. Have you checked compression...You could have a burnt valve(S), that may not manifest itself except on acceleration, (more load, Higher rpm), That could explain the fuel in the exhaust. Not getting proper combustion at higher rpms. Could have a dead cylinder, but unless its caused by a valve float, it should occur even at lower rpms.
Posted on Oct 26, 2009
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Posted on Jan 02, 2017
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