only 3 cylinders...Need Advice
Engine missing, gas mileage down 5 mpg. I think my No. 1 cylinder is dead. Replaced plugs, plug wires, dist cap and rotor. Don't think it is electrical, plug fires when out and put to ground. But, with engine running if I pull wire off no. 1 no change at all.
Local mechanic thinks I have a problem with the exhaust valve on no. 1, burnt or staying open and letting gas out on compression stroke before cylinder can fire. Makes some sense. I had a valve ping for a long time, drove to Florida and back 850 miles) with gas on the floor most of the way. Got back and no valve ping, but engine missing. I adjusted the valce yesterday, no change.
Does what he says make sense? Anybody ever had this problem? Am I up for a valve job? If so, any idea of the cost? Thanks in advance.
'87 Hardtop - Stock