further on the issue
I did the MAF clean out and that helped a little (about 20%), so I decided to tune up with motorcraft plugs and add the accel super coils...runs awesome now and has power it hasn't had in years (three of my coils were cracked on top).
It still has a very noticeable vibration that shakes the whole truck although the engine is running great. So I was thinking back and last summer I had been on the dunes at Silver Lake and I had hit Test Hill at too sharp of an angle and nosed the bottom of the front end into the dune which caused my skid plate to bend back and up into my fan (which took off one blade). I doubt that one blade off the fan could cause the severity of the shake the whole truck experiences so I am wondering if my harmonic balancer might be gone. I know it's rare but maybe the force of the impact damaged it somehow?
Last edited by speccop; 02-25-2012 at 03:23 PM.
Reason: omitted information