southga03ss Posted February 24, 2009 Report Share Posted February 24, 2009 Alright guys, I did a search on here and read many things that could be the culprit of the problem I am facing. After the tranny was built and put in, the 3-4 shift was very mushy and the converter wouldn't stay locked up in 4th for very long if i set the cruise control. It wanted to downshift. I got up Sunday morning, and had no 4th at all. So, I'm driving around with 3 gears that work absolutely perfect. The tune on the truck is stock, I installed a PI 3000 stall converter, pinless accumulator pistons, corvette 2nd servo, superior 4th servo, Alto carbonite band, larger boost valve, HD pump spring, alto red eagle 3-4, alto 1-2 clutches, beast shell, and Tru-Cool max cooler. Any help would be appreciated, this is getting to be a PITA! Thanks! Quote Link to comment Share on other sites More sharing options...
benjaminh2 Posted February 24, 2009 Report Share Posted February 24, 2009 if 3 gears work perfect, then you know its not a line pressure issue, or a converter problem. time to take it out,tear it down, and see what failed... Quote Link to comment Share on other sites More sharing options...
Krambo Posted February 24, 2009 Report Share Posted February 24, 2009 What he said. Is your fluid burnt...is it filled to the correct level? Quote Link to comment Share on other sites More sharing options...
southga03ss Posted February 24, 2009 Author Report Share Posted February 24, 2009 Fluid doesn't smell burnt and it is filled to the correct level. I don't understand why 4th would fail and not 3rd along with it. Quote Link to comment Share on other sites More sharing options...
ss454327 Posted February 25, 2009 Report Share Posted February 25, 2009 I've heard of this problem with the superior super 4th servo. http://www.camaroz28.com/forums/showthread.php?t=569066 http://www.pacificp.com/forum/viewtopic.ph...30258a0747611d5 Quote Link to comment Share on other sites More sharing options...
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