help anyone
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Freshman User
Joined: Apr 2011
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help anyone
wow iv spent some cazy time with this ill start from the beginging well i thought my c6 auto trans was going out so i picked one up off a buddy for fairly cheap well i pulled it off a 460 i drive a 6.9 diesel come to find out wont bolt in sux to be me. well i did some reading found out my rtrans could still be good just need a new vacume modulater well i pulled it to check it and of course droped the pin in the sand on a windy daylost so i pulled the one from the 460 c6 put it in reinstalled the trans my truck started but nothing not even first and second gear now i was wondering is that pin that dang important and will the one i put in work or will my truck just rev till i find the originale one one other question will the valve bodys change out please some one help me
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Joined: Jan 2001
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From: Virginia
The pin makes it shift at the proper time, yes it's pretty important.
You need to check for vacuum at the connection on the tranny with the engine idling. A diesel does not have vacuum like a gas engine, so you have a vacuum pump that gives the diesel truck vacuum for the brake booster, the HVAC, and the c6 tranny.
You need to check that you have vacuum in the system at the engine, and you also need to check the VRV or vacuum control on the throttle under the hood. To make the c6 work with the diesel, they had to put a variable vacuum gizmo on the throttle that varies the vacuum signal to the modulator on the tranny. That's what makes it shift at the proper time according to the throttle position.
You need to check for vacuum at the connection on the tranny with the engine idling. A diesel does not have vacuum like a gas engine, so you have a vacuum pump that gives the diesel truck vacuum for the brake booster, the HVAC, and the c6 tranny.
You need to check that you have vacuum in the system at the engine, and you also need to check the VRV or vacuum control on the throttle under the hood. To make the c6 work with the diesel, they had to put a variable vacuum gizmo on the throttle that varies the vacuum signal to the modulator on the tranny. That's what makes it shift at the proper time according to the throttle position.
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Freshman User
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i stuck my thumb to the hose and i have vacume pressure. befor i pulled the tranny i still had first and second manualey thats why i thought it was the v/m cause when i really got in to it it shifted. NOW i have nadda when i shift it dose nothing.when i put the t/c in i know i got it right the t/c slid forward upon tighteing down it stil had a lil play to slide up but it was definetly in the flex plate. after i mounted it the t/c would not spin in the bell houseing i saw a clip of a smaller tranny being mounted and the t/c still would spin befor tighteing im sure that cant be my prob is it
Cargo Master
Joined: Nov 2010
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Geeze bud, I would love to help you, but I really can't decipher what you are asking? Maybe if you went back in and threw in some punctuation marks, correct capitalization and spelling and things of that nature myself and others could easily scan your writing to determine what your needs are?
