fjord
Member
- Joined
- September 29, 2012
- Messages
- 16
- Reaction score
- 0
- City, State
- Fort Smith, Arkansas
- Year, Model & Trim Level
- 1999 Explorer 4.0 V6 OHV
Just completed 5R55E valve body update
Wanted to thank everyone on this forum for the info on these valve body updates. I would not have had the courage to try these mods without the guidance and pics provided here.
My 1999 Explorer with 134K miles was having typical transmissions issues (slow to engage reverse, very bad 1-2 and 2-3 shift flare). However the gears seemed solid once they did engage so after reading this forum over and over I decided to jump in and try it.
From FordPartsGiant I bought the bonded gasket separator plate (1L5Z7Z490GA for my 99 model), the Ford TSB pressure relief valve update (3L5Z-7M203-JA), a new EPC solenoid (XL2Z-7G383-AA although this part number had been superceded by 9L2Z-7G383-A), and the updated solenoid bracket (XL2Z-7L491-AA)
Just a note: the Ford tsb kit does not include the spring shown on page one of the forum.
From TransmissionPartsUSA I bought the D-Ring seal set (#4962) for the reverse servo. The seals on my servo still looked ok when i got it out but the the d-ring set (in addition to the better inside seal of the d-ring on the servo) was slightly thicker which looked like it would provide better seal pressure. In fact, even with the seals lubed up i had to basically drive the servo back into the bore it was so tight. I even wondered if maybe too tight but it all seems to work ok.
After dropping the trans pan (which by the way i did not remove the exhaust and just unclipped and pushed the heat shield over and out of the way) and valve body, I discovered exactly what is shown in several of the pics here--the separator plate gasket was blown around the reverse servo and also several places beside the solenoids. It was a relief really to see that something visible was wrong.
So then I cleaned the valve body gasket surfaces, installed the Ford tsb pressure relief valve update (yes the tsb instructions do seem to indicate the wrong bore but the pics on this forum show the correct installation), installed the new EPC solenoid and the updated solenoid retainer. I would say also that it is important to really check well the valve body passages for bits of the blown gasket. I found several including up in the trans case side where the valve body bolts to.
Then re-installed everything. It is easy to miss making sure that the manual gear selector lever is in place on the manual gear selector piston when putting the valve body in place--thanks to this forum i knew to double check that.
Also i splurged on a really nice inch-lb torque wrench (about $50) with the click feature. Well worth the peace of mind to know that a quality tool should be spot-on with the calibration settings for a task this critical. Also the click feature really helped in going over the 23 bolts in 3 passes to torque the valve body tight.
I have driven a couple of weeks now and so far the updates seem to have cured the problems i was having. Reverse takes maybe a second to engage now and the shift flares are gone, even when everything is fully hot (that is when the shift flares were worst on mine).
I figure that i spent all totaled about $200 including all the parts, Mercon V trans fluid (7 qts) and new trans filter. Plus the $50 for the new torque wrench. This compared to a $2500 estimate from a trans shop who just said they would have to rebuild the whole trans. I can somewhat understand the viewpoint of a trans shop though, they have a lot of specialized equipment to pay for and in order to provide a warranty on the transmission they have to be sure of everything in the transmission. I'm just glad that my trans did not require it.
Just as a note, I did NOT install the Superior shift kit or the Trans-Go shift kit. I was hoping they would not be necessary and so far it seems that they weren't in my case. If I have further problems down the line i will probably try one of them.
So, again, thanks to everyone (especially Glacier991 who started the whole thing) who has contributed to the forums.
Wanted to thank everyone on this forum for the info on these valve body updates. I would not have had the courage to try these mods without the guidance and pics provided here.
My 1999 Explorer with 134K miles was having typical transmissions issues (slow to engage reverse, very bad 1-2 and 2-3 shift flare). However the gears seemed solid once they did engage so after reading this forum over and over I decided to jump in and try it.
From FordPartsGiant I bought the bonded gasket separator plate (1L5Z7Z490GA for my 99 model), the Ford TSB pressure relief valve update (3L5Z-7M203-JA), a new EPC solenoid (XL2Z-7G383-AA although this part number had been superceded by 9L2Z-7G383-A), and the updated solenoid bracket (XL2Z-7L491-AA)
Just a note: the Ford tsb kit does not include the spring shown on page one of the forum.
From TransmissionPartsUSA I bought the D-Ring seal set (#4962) for the reverse servo. The seals on my servo still looked ok when i got it out but the the d-ring set (in addition to the better inside seal of the d-ring on the servo) was slightly thicker which looked like it would provide better seal pressure. In fact, even with the seals lubed up i had to basically drive the servo back into the bore it was so tight. I even wondered if maybe too tight but it all seems to work ok.
After dropping the trans pan (which by the way i did not remove the exhaust and just unclipped and pushed the heat shield over and out of the way) and valve body, I discovered exactly what is shown in several of the pics here--the separator plate gasket was blown around the reverse servo and also several places beside the solenoids. It was a relief really to see that something visible was wrong.
So then I cleaned the valve body gasket surfaces, installed the Ford tsb pressure relief valve update (yes the tsb instructions do seem to indicate the wrong bore but the pics on this forum show the correct installation), installed the new EPC solenoid and the updated solenoid retainer. I would say also that it is important to really check well the valve body passages for bits of the blown gasket. I found several including up in the trans case side where the valve body bolts to.
Then re-installed everything. It is easy to miss making sure that the manual gear selector lever is in place on the manual gear selector piston when putting the valve body in place--thanks to this forum i knew to double check that.
Also i splurged on a really nice inch-lb torque wrench (about $50) with the click feature. Well worth the peace of mind to know that a quality tool should be spot-on with the calibration settings for a task this critical. Also the click feature really helped in going over the 23 bolts in 3 passes to torque the valve body tight.
I have driven a couple of weeks now and so far the updates seem to have cured the problems i was having. Reverse takes maybe a second to engage now and the shift flares are gone, even when everything is fully hot (that is when the shift flares were worst on mine).
I figure that i spent all totaled about $200 including all the parts, Mercon V trans fluid (7 qts) and new trans filter. Plus the $50 for the new torque wrench. This compared to a $2500 estimate from a trans shop who just said they would have to rebuild the whole trans. I can somewhat understand the viewpoint of a trans shop though, they have a lot of specialized equipment to pay for and in order to provide a warranty on the transmission they have to be sure of everything in the transmission. I'm just glad that my trans did not require it.
Just as a note, I did NOT install the Superior shift kit or the Trans-Go shift kit. I was hoping they would not be necessary and so far it seems that they weren't in my case. If I have further problems down the line i will probably try one of them.
So, again, thanks to everyone (especially Glacier991 who started the whole thing) who has contributed to the forums.