Engine and TCM

BamaBoy · Post by **BamaBoy** » Mon Sep 03, 2012 8:59 pm

With all of the canned tunes can you just tune the engine and not use the TCM tune on the transmission?

Mike_Levy · Post by **Mike_Levy** » Mon Sep 03, 2012 9:23 pm

Yes. Don't know why you'd want to though. Between the better feel and improved longevity from the TCM tunes, why would you not want to use them?

BlackZ71Silverado · Post by **BlackZ71Silverado** » Tue Sep 04, 2012 11:27 am

IMO it's not worth installing a tune if you are not going to tune the TCM. Makes the truck drive much better.

BamaBoy · Post by **BamaBoy** » Tue Sep 04, 2012 9:16 pm

I love the tune expect the hard jerk on the drivetrain from 2nd to 3rd it shifts a little to hard I dont want to damage anything the truck only has 27000 miles on it. I was just curious of my options.

rdss · Post by **rdss** » Thu Sep 06, 2012 8:57 pm

What TCM tune are you using? I didn't have any problems with the firm TCM tune at all and I just got a custom TCM tune from Lew (2nd revision, 1st would try and twist the whole truck!!) and it is great, tiny chirp to 2nd and a quick roll over to 3rd. Drives smooth and clean during normal driving, loving it so far.

BlackZ71Silverado · Post by **BlackZ71Silverado** » Thu Sep 06, 2012 11:16 pm

If there is a jerk from 2-3, adjust the shift pressure down a little bit. Problem will be solved.

I am running the firm shift tune set at +4 and have no clunking/jerking at all. Runs great and shifts like it should.

BamaBoy · Post by **BamaBoy** » Fri Sep 07, 2012 11:08 pm

I am running the firm shift tune also I will make the shift pressure adjustments thanks guys!

Engine and TCM

Engine and TCM

Re: Engine and TCM

Re: Engine and TCM

Re: Engine and TCM

Re: Engine and TCM

Re: Engine and TCM

Re: Engine and TCM