700r4 problems after rebuild. please help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Hayes904 · 11-13-2012, 02:49 PM

Hey y'all, I'm new to the site but I had a 700r4 with the auxiliary valve body rebuilt buy a friend of the familly who has built many without any problems what so ever. This is the second time he's built this tranny and it has the same problem it did the last time he rebuilt it. And yes the t.v. cable is adjusted correctly haha. But when you take off normally the shifts are very very weak and you have to let out of the throttle to get it to go in overdrive but the weird thing is if I put it down in first and manually shift it it will bark 2nd and go in 3 like normally. The only thing he hasn't replaced in the trannyis the govoner. He put a Corvette servo all new clutches new performance band new drum new t.v cable new lip seals. New gears in the front pump which he says rarly go bad. Also the throttle is hard to mash down if that tells you anything. Any help y'all can give me would be much appritiated. Thanks, John
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**truckdude239** · 11-13-2012, 04:17 PM

the 700r4 is a hard cat to build, if your rebuilding the trans why would you not replace the Governor? it could be bad as thats the only part reused i'd start there, you must know what your doing with a 700r4 they are weak transmissions

jfortvalley · 11-13-2012, 06:20 PM

take it alvie on main street and chances are something sounds screwed in the boost system in the pump

Hayes904 · 11-13-2012, 06:36 PM

10/4 ill pass the info along to him. thanks for the reply.

shortbed70 · 11-13-2012, 10:39 PM

My tranny did the let out to go into overdrive when I had a diamond weight govoner in it. Put in a stock one all was better. As for the first second thing you need to have a good 1-4 servos in it and how did the tv get set?
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clinebarger · 11-13-2012, 11:04 PM

Has anyone put a pressure gauge on it yet?....Like Jfortvalley said....Could be boost related http://www.sonnax.com/system/instruc...0R4-LB1-IN.pdf

Hayes904 · 11-15-2012, 09:53 PM

Alright I think he may have it fixed but he hasent told me what it is. I appreciate all the help and ill let y'all know what he finds
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11-13-2012, 02:49 PM	#1
Hayes904 Registered User Join Date: Nov 2012 Location: jacksonville, Florida Posts: 29	700r4 problems after rebuild. please help Hey y'all, I'm new to the site but I had a 700r4 with the auxiliary valve body rebuilt buy a friend of the familly who has built many without any problems what so ever. This is the second time he's built this tranny and it has the same problem it did the last time he rebuilt it. And yes the t.v. cable is adjusted correctly haha. But when you take off normally the shifts are very very weak and you have to let out of the throttle to get it to go in overdrive but the weird thing is if I put it down in first and manually shift it it will bark 2nd and go in 3 like normally. The only thing he hasn't replaced in the trannyis the govoner. He put a Corvette servo all new clutches new performance band new drum new t.v cable new lip seals. New gears in the front pump which he says rarly go bad. Also the throttle is hard to mash down if that tells you anything. Any help y'all can give me would be much appritiated. Thanks, John Posted via Mobile Device

11-13-2012, 04:17 PM	#2
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: 700r4 problems after rebuild. please help the 700r4 is a hard cat to build, if your rebuilding the trans why would you not replace the Governor? it could be bad as thats the only part reused i'd start there, you must know what your doing with a 700r4 they are weak transmissions __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

11-13-2012, 06:20 PM	#3
jfortvalley Registered User Join Date: Mar 2012 Location: fortvalley ga Posts: 345	Re: 700r4 problems after rebuild. please help take it alvie on main street and chances are something sounds screwed in the boost system in the pump

11-13-2012, 06:36 PM	#4
Hayes904 Registered User Join Date: Nov 2012 Location: jacksonville, Florida Posts: 29	Re: 700r4 problems after rebuild. please help 10/4 ill pass the info along to him. thanks for the reply.

11-13-2012, 10:39 PM	#5
shortbed70 Registered User Join Date: Mar 2002 Location: Forney TX Posts: 4,512	Re: 700r4 problems after rebuild. please help My tranny did the let out to go into overdrive when I had a diamond weight govoner in it. Put in a stock one all was better. As for the first second thing you need to have a good 1-4 servos in it and how did the tv get set? Posted via Mobile Device __________________ Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274

11-13-2012, 11:04 PM	#6
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 700r4 problems after rebuild. please help Has anyone put a pressure gauge on it yet?....Like Jfortvalley said....Could be boost related http://www.sonnax.com/system/instruc...0R4-LB1-IN.pdf

11-15-2012, 09:53 PM	#7
Hayes904 Registered User Join Date: Nov 2012 Location: jacksonville, Florida Posts: 29	Re: 700r4 problems after rebuild. please help Alright I think he may have it fixed but he hasent told me what it is. I appreciate all the help and ill let y'all know what he finds Posted via Mobile Device

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