Engine Performance problem
1991 Ford E-Series Van 6 cyl Two Wheel Drive Automatic 100000 miles
91 Econoline E150 with a 4.9L straight six engine. Just purchased vehicle and found that it needed valve seals. Replaced valve seals, Motorcraft Wires, Plugs, Rotor, and Cap. Changed oil and filter.
Engine has a steady roughness more noticable in park. The roughness is enough to cause a noticable shake to the steering wheel and body. No codes or vacuum leaks were found. Vacuum gauge read a fairly steady 20psi. Please advise of the possibilities for this symptom. I'm at a loss and cannot really afford to just throw parts on it to gamble for a lucky fix.
Thursday, September 3rd, 2009 AT 11:05 AM