MustangWorks.com : Ford Forums - View Single Post - Need help with vibration in new motor!! (5th gear shimmies) PLEASE HELP!!

skiwesser · 06-09-2006, 11:11 PM

Okay, I've noticed a trend, in the morning it runs smooth as silk. I can let the RPM's fall to 1000 and ease into the throttle and it accelerates smoothly. In the afternoon, and typicly the rest of the day it will shake so bad in 5th at 1500 and under that I have to go to 4th, I't really feels like ingtion miss but I've changes plugs, wires, cap & rotor, I even swapped CPU's with my buddy mine ran fine in his car (I got it used) and I had same problem with his??
HELP!!!!!!

06-09-2006, 11:11 PM	#5
skiwesser Registered Member Join Date: Sep 2000 Location: rock hill,S.C. 29730 Posts: 420	Re: Need help with vibration in new motor!! (5th gear shimmies) PLEASE HELP!! Okay, I've noticed a trend, in the morning it runs smooth as silk. I can let the RPM's fall to 1000 and ease into the throttle and it accelerates smoothly. In the afternoon, and typicly the rest of the day it will shake so bad in 5th at 1500 and under that I have to go to 4th, I't really feels like ingtion miss but I've changes plugs, wires, cap & rotor, I even swapped CPU's with my buddy mine ran fine in his car (I got it used) and I had same problem with his?? HELP!!!!!! __________________ 88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306. DYNO TUNED TO 300.97 RWHP 337RWTQ