C6-not shifting properly

fourtss · Post by **fourtss** » Mon Sep 04, 2006 9:28 pm

okay, I just put my c6 in my truck today, it's not shifting right, it won't shift thru the gears but it will shift manually, I took it out of one truck put it in another, with the same engine and

it won't work right any suggestions?

72hiboy4x4 · Post by **72hiboy4x4** » Mon Sep 04, 2006 9:38 pm

mine acted like that after I changed the fluid. I just ran it a couple days and it must have bled itself out.

fourtss · Post by **fourtss** » Mon Sep 04, 2006 9:42 pm

hope mine cures itself to then

BigRedTruck · Post by **BigRedTruck** » Tue Sep 05, 2006 12:43 am

did this happen all at once or did it slowly get worse? The advances may not be connected, you may need a new modulator valve..thats all I can think of...

fourtss · Post by **fourtss** » Tue Sep 05, 2006 5:13 am

it happened all at once, it worked fine in one truck, took it out of that truck put it in another truck didn't work right

67highboy · Post by **67highboy** » Tue Sep 05, 2006 10:16 am

It sounds like a kick down linkage problem to me.

71 LONG BED · Post by **71 LONG BED** » Tue Sep 05, 2006 11:15 am

Was thinking the same thing...

fourtss · Post by **fourtss** » Tue Sep 05, 2006 6:05 pm

u guys may b on to something there, cause my little plastic washers r gone and I thinks me bent the rod, she kicks down into passing gear but she won't shift out to 3rd

flyboy2610 · Post by **flyboy2610** » Tue Sep 05, 2006 6:44 pm

Try unhooking the kickdown rod and see if it shifts normally. If it does the kickdown linkage is the problem.

fourtss · Post by **fourtss** » Tue Sep 05, 2006 6:51 pm

thanx fly

460 crew · Post by **460 crew** » Tue Sep 05, 2006 6:54 pm

Is the vacume line good rubber and on there snug?

fourtss · Post by **fourtss** » Tue Sep 05, 2006 7:05 pm

yeah its good and snug, but, this truck has power brakes hooked up to the same vacuum connection, think my brakes r robbin all the power?

flyboy2610 · Post by **flyboy2610** » Tue Sep 05, 2006 7:16 pm

That could be part of it.

dcbullet · Post by **dcbullet** » Wed Sep 06, 2006 12:23 am

fourtss wrote:yeah its good and snug, but, this truck has power brakes hooked up to the same vacuum connection, think my brakes r robbin all the power?

Mine's all hooked up to the same vacuum tree and have no problem.

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