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Re: Severe engine vibration
12Ounce, scubacat, and tempfixit. Thank you for you guys' suggestions!
12Ounce,
I will get an inductive timing light and do the test. Hopefully I could find a local store that has one on their loan program. The severe engine vibration occurred before I messed with the replacement of spark plugs, spark plug wires, and ignition coil pack. Vibration remained even after said replacement.
Scubacat,
Vibration is less pronounced as the vehicle speed gets higher. Above 40 - 45 mph is the point where the vibration is almost gone.
Thank you for the warning. I am sorry to say I got an Anchor brand mount next to the radiator. You are right, quality is no where close to Motorcraft. The metal frame (thinner) and rubber are subpar. I was not able to compare until I had the old part out and compared them side by side. By then I was not up to mailing back the mount for a refund. It looks like I will have to redo the mount, urgh!
No engine codes.
I too believe it is likely an ignition issue or at least a combustion issue. I wonder if one of the fuel injectors is malfunctioning. When I removed the old spark plugs, all looked pretty much the same. Not one looked oily and wet.
Tempfixit,
The rubber between the inner and outer parts of the harmonic balancer is so thin that it is difficult to see if it is cracked or not. There is not enough material to view to make the determination.
Transmission is in good order and shifting between gears is relatively smooth.
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