Reverse Problem

[Joe79]

91 A4ld ok here is my problem I had the transmission rebuilt I got it back in and now I have a delayed reverse if the explorer has been sitting for awhile the reverse comes in slow 20 to 30 seconds after it warms up there is no reverse from the research I have done looks like it might be the low reverse servo seal any help would be appreciated

 

[BrooklynBay]

If you just got it back in this condition, then have the shop that rebuilt it open it up. If you open it up, they won't honor the warranty.

 

[Joe79]

because I Installed it myself no warranty from the shop

 

[BrooklynBay]

Did you use an In.-Lb. torque wrench when you tightened the valve body bolts? You could use Transtec viton seals on the low/reverse servo.

 

[BrooklynBay]

Check the fluid level when it is cold, then again when it is hot. Make sure that you are on level ground when checking the fluid. Did you use Dexron III/Mercon fluid?

 

[Joe79]

I have checked the fluids

the transmission shop did the rebulid I R&R the tranny
tomorrow I will check the valvebody bolts first Mitchell shows 71-98 inch

 

[BrooklynBay]

Do you know if the shop rebuilt the valve body themself, just cleaned it up, or installed another valve body?

 

[Joe79]

I have tried everything I checked the fluid warm & hot

 

[Joe79]

He cleaned it up

 

[BrooklynBay]

There are 2 valve body rebuild kits that they make for the A4LD. I'm wondering if that shop might have lost something while reassembling the valve body. Did you read Glacier991's A4LD VB diary, and the A4LD rebuild diary? There is another thread called Project Frankentranny that explains how to upgrade the A4LD with 5R55E parts.

 

[BrooklynBay]

Here is another thread called the A4LD valve body rebuild journal: http://www.explorerforum.com/forums/showthread.php?t=126461

 

[Joe79]

I wouldnt be surprised if they did loose something ! when I went to pick up my transmission the guy said they put my torque converter on the core truck
so he had to get me a new one

I'll read up on the valve body rebulid

thanks for the help

 

[BrooklynBay]

It's recommended to replace the torque converter after having the transmission rebuilt. Check WWW.ATRA.Com to see if that shop is a member.

 

[Joe79]

the first time it got rebulit I got a new converter for it
but the tranny went a little over 20,000 miles because alot of hauling with no cooler lol

 

[BrooklynBay]

Do you now have a good quality cooler, and remote filter? A transmission temperature gauge is also a good thing to have. Check this thread about transmission fluid temperature: http://www.explorerforum.com/forums/showthread.php?t=162567

 

[Joe79]

oh yeah I installed a big cooler remote filter all new lines and a temp gauge

 

[BrooklynBay]

AlDive has a couple of threads about the cooler collar that goes over the remote filter. Here is a link to one: http://www.explorerforum.com/forums/showthread.php?t=142671

 

[Joe79]

after I get the VB fixed I might go to Mobil 1 Synthetic transmission fluid
what's your thoughts on it ?

 

[BrooklynBay]

Mobile 1 synthetic is pretty good. Other people on this site have used Amsoil, and seem to like that too. I haven't used it, so I can't compare. I've used Mobile 1 synthetic. It is a little expensive, but all synthetics are.