I have a 66 Tbird with a bad set of lifters so I just replace them. I started it up and it ran great. After I replaced the vacuum lines, covers, etc., it started back missing on three cylinders.

Asked by Oct 15, 2015 at 02:04 PM about the 1966 Ford Thunderbird

Question type: Maintenance & Repair

I just rebuilt the engine.

6 Answers


Was the cam brokein properly after the rebuild? If not it could have ruined the lobes on the camshaft, and that means a new cam and lifter set.

Best Answer Mark helpful

Did you do this work yourself? amazing- that is a classic sorta, and if you "rebuilt" the engine, it could be anything- how can I know? just start diagnosing why those 3 cylinders are not firing- is it the ignition system? is it the vacuum lines and it just sounds like it's missing? good luck-

Thanks tennissshoes. My dad said that but I was hoping I didn't have to pull the engine out again. Thanks jamnblues. My dad and I are doing the work.


I would check ignition wireing to spark plugs,if its old it may not give spark to plugs when hot.

It was the cam. After I replace the cam, it ran like a dream. Thanks


Bummer you had to pull it again, but now it should last for years to come. Maybe when it is finished you could send us a picture. Thank for using car gurus. Happy Thanksgiving

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