You should've done that sooner, but with a clean screen I'm sure all is well now.
**DO drop pan on fluid swap/exhange on higher milage titans
To my ignorance I had left this task go undone;
2005 Titan purchased with 76k on the ticker and one of the first things I did was install the Long trucool cooler and bypass the radiator. At that time I wanted to drop the pan and exchange all fluid but could not afford it. Added a quart maybe more or less and all was well.
Fast forward this week @ 114,XXX miles I had a whining coming from my truck that I was hoping was a power-steering pump. The whine was intermittent at first and would come and go. It responded with the RPMs and sounded similar to pump whine I have herd transmissions have and dreaded that was the cause so I shrugged it off and inspected under the hood that evening while my stepdad throttled the engine, rolled under the truck but the sound came and went and I couldn't pin point it.
Tuesday I wake up and start the truck and notice the whine sounded steady and sounded to be coming from the transmission. I tried to hurry and roll under it with a screw driver to see if I could pin point the noise but it quieted down. Drove to town and upon leaving Kwik feel I could tell something was wrong with my gears, so I limped it 2000-3000' up to autozone and backed in a spot. Rolled under neath removed front skid to check the integrity of front cooler lines they were fine, checked fluid it was darker than when I had installed the cooler. Bought p/s fluid added and started it up and drove home babying the throttle.
I then got the truck to struggle and have the constant whine when I returned and my stepdad broke the news I dreaded that he highly believed it sounded like a pump whine, as the pump is starving for fluid. He said he had many TH400s back when transmission fluid isn't want it is today have a similar whine when their fluid would break down and varnish.
First thing I did was look for our transmission pressure gauge so I could check the pressure but it was lent out to a friend. So my second thought was before I dropped the pan was to pull the front transmission cooler line (pressure side) and check the output pressure visually. Didnt appear to have a whole lot of pressure, ended up exiting most of the fluid this way *6-9qt.
I feared the worst upon starting on the 20 gosh for saken pan bolts and dropped the pan and only had a small amount of fluid to deal with. Upon looking up into the filter I didnt at first think there was much particulate or debris but upon looking further with a flash light and then finally removing I was suprised at the amount that was there. There was particulate on both magnets in the pan and a slight varnish that you can see from the finger marks on the filter but other than what was in the filter there wasn't much material.
I cleaned both the filter and pan and reinstalled both. Just wiped both gaskets off and reused both. Refilled with some multi-vehicle synth blend I had available and added Lubeguard platinum atf protection for sure measure. Originally I was going to go with the castrol import ATF but had a drum of this multi-atf from when we had our shop and at 114,XXX miles wasn't worried about seeing how the transmission liked the fluid.
Truck started no whine. **Thumbs up**
Have driven since and the transmission shifts better than it ever has and feels more responsive imo. The true test will be when I get the transmission pressure gauge back and can properly test the pressures to see what/ or if any damage was done to the pump.
It is by my own fault that I neglected to drop the pan and clean the filter and I was sick to my stomach at the fact that I was going to be in the garage tearing out my transmission. This is a fore warning to those who opt to just pull the plug and change fluid.
After seeing the size of the screen on the filter and how it can quickly get clogged with particulate I will opt to drop the pan again in another 40-60,000 miles if she makes it through.
I am hoping my pressure #s aren't far off of what the specs are, as said above the truth will be when I get a gauge on it!
Hope this helps some one in the future!
For anyone dropping the pan on their titan I advise to try to keep the original pan gasket in tack and just wipe it and the case down and re-apply and re torque the bolts down. The gaset and seal it has to the pan from factory is pretty good and removing it to add a gasket from autozone would just cause more problems than it is worth.
2005 Titan purchased with 76k on the ticker and one of the first things I did was install the Long trucool cooler and bypass the radiator. At that time I wanted to drop the pan and exchange all fluid but could not afford it. Added a quart maybe more or less and all was well.
Fast forward this week @ 114,XXX miles I had a whining coming from my truck that I was hoping was a power-steering pump. The whine was intermittent at first and would come and go. It responded with the RPMs and sounded similar to pump whine I have herd transmissions have and dreaded that was the cause so I shrugged it off and inspected under the hood that evening while my stepdad throttled the engine, rolled under the truck but the sound came and went and I couldn't pin point it.
Tuesday I wake up and start the truck and notice the whine sounded steady and sounded to be coming from the transmission. I tried to hurry and roll under it with a screw driver to see if I could pin point the noise but it quieted down. Drove to town and upon leaving Kwik feel I could tell something was wrong with my gears, so I limped it 2000-3000' up to autozone and backed in a spot. Rolled under neath removed front skid to check the integrity of front cooler lines they were fine, checked fluid it was darker than when I had installed the cooler. Bought p/s fluid added and started it up and drove home babying the throttle.
I then got the truck to struggle and have the constant whine when I returned and my stepdad broke the news I dreaded that he highly believed it sounded like a pump whine, as the pump is starving for fluid. He said he had many TH400s back when transmission fluid isn't want it is today have a similar whine when their fluid would break down and varnish.
First thing I did was look for our transmission pressure gauge so I could check the pressure but it was lent out to a friend. So my second thought was before I dropped the pan was to pull the front transmission cooler line (pressure side) and check the output pressure visually. Didnt appear to have a whole lot of pressure, ended up exiting most of the fluid this way *6-9qt.
I feared the worst upon starting on the 20 gosh for saken pan bolts and dropped the pan and only had a small amount of fluid to deal with. Upon looking up into the filter I didnt at first think there was much particulate or debris but upon looking further with a flash light and then finally removing I was suprised at the amount that was there. There was particulate on both magnets in the pan and a slight varnish that you can see from the finger marks on the filter but other than what was in the filter there wasn't much material.
I cleaned both the filter and pan and reinstalled both. Just wiped both gaskets off and reused both. Refilled with some multi-vehicle synth blend I had available and added Lubeguard platinum atf protection for sure measure. Originally I was going to go with the castrol import ATF but had a drum of this multi-atf from when we had our shop and at 114,XXX miles wasn't worried about seeing how the transmission liked the fluid.
Truck started no whine. **Thumbs up**
Have driven since and the transmission shifts better than it ever has and feels more responsive imo. The true test will be when I get the transmission pressure gauge back and can properly test the pressures to see what/ or if any damage was done to the pump.
It is by my own fault that I neglected to drop the pan and clean the filter and I was sick to my stomach at the fact that I was going to be in the garage tearing out my transmission. This is a fore warning to those who opt to just pull the plug and change fluid.
After seeing the size of the screen on the filter and how it can quickly get clogged with particulate I will opt to drop the pan again in another 40-60,000 miles if she makes it through.
I am hoping my pressure #s aren't far off of what the specs are, as said above the truth will be when I get a gauge on it!
Hope this helps some one in the future!
For anyone dropping the pan on their titan I advise to try to keep the original pan gasket in tack and just wipe it and the case down and re-apply and re torque the bolts down. The gaset and seal it has to the pan from factory is pretty good and removing it to add a gasket from autozone would just cause more problems than it is worth.
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@Stymees'mont
A new filter is not needed as much so as cleaning the filter. As pictured it is a micro screen filter opposed to a foam or paper type filter.
Stepdad disassembled the transmission today and inspected as he did. I was thrilled to see no damage to the pump sealing rings or hard parts in general. Direct frictions got a little hot but nothing to really note.
When getting to the reverse pack the snap-ring I mentioned above was in fact knocked out of its set slots and allowed the piston to travel excessively which caused the inside seal on the piston to tear and premature wear of the reverse frictions.
Will be ordering parts in the next day or so and will provide information on the upgrade snap-ring.
I will get pictures of just the snap ring laying on the bench tomorrow. The snap ring is clearly a thinner more ply-able one.
Attached are two photos of the inside of the case and the snapring mentioned. This is how it presented it self. (Out of its set location)
Superior updated snap-ring
RE5R05A Transmission Superior Double Wide Snap Ring Reverse Brake Fits Nissan | eBay
A new filter is not needed as much so as cleaning the filter. As pictured it is a micro screen filter opposed to a foam or paper type filter.
Stepdad disassembled the transmission today and inspected as he did. I was thrilled to see no damage to the pump sealing rings or hard parts in general. Direct frictions got a little hot but nothing to really note.
When getting to the reverse pack the snap-ring I mentioned above was in fact knocked out of its set slots and allowed the piston to travel excessively which caused the inside seal on the piston to tear and premature wear of the reverse frictions.
Will be ordering parts in the next day or so and will provide information on the upgrade snap-ring.
I will get pictures of just the snap ring laying on the bench tomorrow. The snap ring is clearly a thinner more ply-able one.
Attached are two photos of the inside of the case and the snapring mentioned. This is how it presented it self. (Out of its set location)
Superior updated snap-ring
RE5R05A Transmission Superior Double Wide Snap Ring Reverse Brake Fits Nissan | eBay
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Stepdad has been a little under the weather but have the back half of the case on and stacked nearly up to the top.
The size difference between the upgraded/updated superior snap-ring and the original is significant. Plan on getting a picture of it with measurement to show.
Not much further now!
Have to order exhaust gaskets, a few driveshaft bolts that had the threads stripped and a transmission mount.
Didnt think the mount was broke during removal but once I removed the back section of the case and looked at it up close it was cracked right in the crease. Plan on pricing a xterra mount I think I just recently read about?
The size difference between the upgraded/updated superior snap-ring and the original is significant. Plan on getting a picture of it with measurement to show.
Not much further now!
Have to order exhaust gaskets, a few driveshaft bolts that had the threads stripped and a transmission mount.
Didnt think the mount was broke during removal but once I removed the back section of the case and looked at it up close it was cracked right in the crease. Plan on pricing a xterra mount I think I just recently read about?
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Photo 2 shows the reverse clutch piston which was the piston that had excessive play due to the snap ring being out of place and cause the burnt up clutch pack and
Photo 3) shows the inner seal from the piston that was tore
Photo 3) shows the inner seal from the piston that was tore
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@CVTitan
If you look at the pictures at the start of the thread you will see that the filter was nearly completely plugged with debris which caused the pump to starve of fluid and cause a whining sound. I suggest dropping the pan on higher mileage titans as the fluid looked good when I purchased the truck at 77K miles and by 114 I think it was I had the filter plug.
I plan on running the synthetic multi-import ATF along with lubegard platinum protection and do not expect any problems. As long as the fluid is compatible it is fine.
This is the second JATCO re5r05a that my stepdad has built. The first one was 5-8yrs ago in a pathfinder that had the radiator fail and the coolant and ATF mixed. When he did that rebuild they did not have a service manual or a shift kit out for the transmission. Have the manual now and shift kit.
Went down this morning and put together the direct clutch pack and have the pump set down in now.
Plan on doing the shift kit later in the week after my stepdads treatment.
If you look at the pictures at the start of the thread you will see that the filter was nearly completely plugged with debris which caused the pump to starve of fluid and cause a whining sound. I suggest dropping the pan on higher mileage titans as the fluid looked good when I purchased the truck at 77K miles and by 114 I think it was I had the filter plug.
I plan on running the synthetic multi-import ATF along with lubegard platinum protection and do not expect any problems. As long as the fluid is compatible it is fine.
This is the second JATCO re5r05a that my stepdad has built. The first one was 5-8yrs ago in a pathfinder that had the radiator fail and the coolant and ATF mixed. When he did that rebuild they did not have a service manual or a shift kit out for the transmission. Have the manual now and shift kit.
Went down this morning and put together the direct clutch pack and have the pump set down in now.
Plan on doing the shift kit later in the week after my stepdads treatment.
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photos
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Pictures of the pump apart and it down in the case
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1 - 20 of 46 Posts
