700r4 trans throttle body valve sticking - The 1947 - Present Chevrolet & GMC Truck Message Board Network

timjt · 11-02-2010, 08:45 PM

Can I just drop the pan, clean the valve, flush the radiator and its good to go? or do I have to pay my local trans shop 60 bucks to quote "clean and hone it"? It was recently rebuilt and its still not shifting properly and is leaking all over the place. Im getting sick of dealing with the guys that rebuilt it so I want to do it myself or have it done right but I don't have the money to just go to a shop and say "fix all the problems'...

pkbinplano · 11-04-2010, 06:29 AM

Adjusting the throttle cable changes the shift points if that helps. What problems are you having ? When they rebuilt my 700r4 they added some kind of lubricant to keep the valve from sticking. Try flooring the gas pedal real hard with truck off a few times. Some times that will free it up, ( per the tranny shop )

timjt · 11-04-2010, 10:01 AM

We worked with the cable and that didn't solve it. (thought it might because it was shifting too high and it did help but didn't solve it) I'll try pumping it and flushing the radiator before I take the pan off, but I still need to find the leak which bugs me. The fluid also seems to be shooting out the release valve on top even when its not over filled, is it true that it will do that because of the pressure building up when the throttle body valve doesn't open properly?

pkbinplano · 11-04-2010, 05:06 PM

that I don't know

85gmcguy · 11-04-2010, 07:33 PM

The trans shop I use recommends GM posi-trac friction modifier additive for that. It's available at GM dealers. Loosens up all the sticky valves.

timjt · 11-05-2010, 08:49 AM

Thanks guys, I'll let you know monday how is goes!

pkbinplano · 11-05-2010, 05:17 PM

Tim, I just snapped your in McKinney. "The Transmission Shop" at 15th and North Central Expressway rebuilt my tranny. Highly recommended. Great job. Run away fast from "Eagle Transmission" . I had to be flatbedded from Centerville back to Plano after they resealed my tranny and forgot the snap ring on the front seal. Tranny was never the same after that. Thats when I took it to The Transmission Shop.

timjt · 11-05-2010, 07:44 PM

Yah, I've found that out, Ive been in there 3 times and they s---. The transmission place across the street also will charge me 3/4 of the price if I end up taking it there...

11-02-2010, 08:45 PM	#1
timjt Registered User Join Date: Oct 2010 Location: mckinney, tx Posts: 390	700r4 trans throttle body valve sticking Can I just drop the pan, clean the valve, flush the radiator and its good to go? or do I have to pay my local trans shop 60 bucks to quote "clean and hone it"? It was recently rebuilt and its still not shifting properly and is leaking all over the place. Im getting sick of dealing with the guys that rebuilt it so I want to do it myself or have it done right but I don't have the money to just go to a shop and say "fix all the problems'...

11-04-2010, 06:29 AM	#2
pkbinplano pkbinplano Join Date: Nov 2002 Location: Plano Texas Posts: 370	Re: 700r4 trans throttle body valve sticking Adjusting the throttle cable changes the shift points if that helps. What problems are you having ? When they rebuilt my 700r4 they added some kind of lubricant to keep the valve from sticking. Try flooring the gas pedal real hard with truck off a few times. Some times that will free it up, ( per the tranny shop ) __________________ http://www.picturetrail.com/gallery/...7496&members=1 84 chevy silverado aka The Bananna Boat

11-04-2010, 10:01 AM	#3
timjt Registered User Join Date: Oct 2010 Location: mckinney, tx Posts: 390	Re: 700r4 trans throttle body valve sticking We worked with the cable and that didn't solve it. (thought it might because it was shifting too high and it did help but didn't solve it) I'll try pumping it and flushing the radiator before I take the pan off, but I still need to find the leak which bugs me. The fluid also seems to be shooting out the release valve on top even when its not over filled, is it true that it will do that because of the pressure building up when the throttle body valve doesn't open properly?

11-04-2010, 05:06 PM	#4
pkbinplano pkbinplano Join Date: Nov 2002 Location: Plano Texas Posts: 370	Re: 700r4 trans throttle body valve sticking that I don't know __________________ http://www.picturetrail.com/gallery/...7496&members=1 84 chevy silverado aka The Bananna Boat

11-04-2010, 07:33 PM	#5
85gmcguy Plays with trucks Join Date: Sep 2003 Location: Asheville, NC Posts: 433	Re: 700r4 trans throttle body valve sticking The trans shop I use recommends GM posi-trac friction modifier additive for that. It's available at GM dealers. Loosens up all the sticky valves. __________________ Gary My Dad's Old Truck 1985

11-05-2010, 08:49 AM	#6
timjt Registered User Join Date: Oct 2010 Location: mckinney, tx Posts: 390	Re: 700r4 trans throttle body valve sticking Thanks guys, I'll let you know monday how is goes!

11-05-2010, 05:17 PM	#7
pkbinplano pkbinplano Join Date: Nov 2002 Location: Plano Texas Posts: 370	Re: 700r4 trans throttle body valve sticking Tim, I just snapped your in McKinney. "The Transmission Shop" at 15th and North Central Expressway rebuilt my tranny. Highly recommended. Great job. Run away fast from "Eagle Transmission" . I had to be flatbedded from Centerville back to Plano after they resealed my tranny and forgot the snap ring on the front seal. Tranny was never the same after that. Thats when I took it to The Transmission Shop. __________________ http://www.picturetrail.com/gallery/...7496&members=1 84 chevy silverado aka The Bananna Boat

11-05-2010, 07:44 PM	#8
timjt Registered User Join Date: Oct 2010 Location: mckinney, tx Posts: 390	Re: 700r4 trans throttle body valve sticking Yah, I've found that out, Ive been in there 3 times and they s---. The transmission place across the street also will charge me 3/4 of the price if I end up taking it there...



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