Mach 1 owners come in please

Fomoco69

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About the only common problem with Mach 1's are with the transmission. Some will grind when cold and most can be fixed with a fluid change. Just use a bottle of the Lucas Trans Fix when doing the change and it should be good to go. It worked for me before I swapped for a T-56.
I recently bought a 2003 Mach 1 wih 13,500 miles / one owner....& all Ive done is install MGW shifter & Mobil1 synthetic ATF......amazing difference !
 

Fomoco69

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Nov 26, 2016
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I meant transmission fluid. Tremec and Ford have revised the fill level on the 3650. It is now lower than what is in the owner's manual.

Here's the TSB. The revised fill is on page 2. 3 liters down from 3.8 in the Tremec service manual.


tsb_3650_1.jpg

tsb_3650_2.jpg
Yes...just did mine...3 - 1/4 qts...Mobil 1 Perfect !
 

4a7191a

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Shaker rattle, do the Mobil 1 and Lucas trans fix and problem solved.
Lower control arm bushings suck. Easy fix with aftermarket and they're alot better.
Major problem I had and it was due to aftermarket cams I think. It was the timing chain tensioners.
Other than that super reliable. Coworker has an auto one, minor bolt ons and 158k miles. No problems other than the easy / cheap stuff.
 

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