Join Date: Aug 2009
Location: Williston, ND
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TCSLIP 900 in lockup :( ?
When i bought my truck it had the spartan installed on it and was running the 150 (DPF off tune) while the truck had a decent amount of power i felt like stepping it up a bit... and loaded the 275 tune... Did the trans relearn process several times and was still upset with the way it shifted... if i would get on it hard from a stop (75% throttle) it would take off fine but bang the next shift extremely violently most of the time.
After running this tune for 3 weeks and 800 miles i just couldnt take it anymore and switched down to the 175hp tune... and the trans shifts great! all but one time... I was driving along at about 30mph let out of it and was coasting... went to punch it and was like i hit it right on the shift point and it firmly planted the shift (still not as violent as the 275hp tune)
Running on the 175hp tune things seem to be working out alright but i am of course worried about the condition of the transmission...
When driving along and i get the convertor into lockup the TCSLIP on the spartan reads what it should .75 - 2 RPM, however if i hammer the throttle while the TC is in lockup the gauge then reads 900 RPM .... can this be right???? Should i plan on plopping down a bunch of $$$ for a new tranny soon?
2009 F250 Rat Fink Custom Paint Job & Plenty of Fun Parts