Tranny Trouble.. HELP!!!!
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Joined: May 2002
Posts: 237
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From: Colorado
Mike!
Hey Mike!
Thanks for the response. I picked up my vehicle last week and continued driving it. I am going to take a picture of the receit to show what all the parts that needed to be replaced are, but I just haven't gotten around to that yet.
As for the transmission rebuild, it was a 'domino' effect where one problem led to another, led to another. Basically, I was thinking that upon viewing the malfunctioning parts, I would see mangled twistes metal.. However, this was not the case at all!!
How the mechanic explained it to me was, there was some sort of bearing in a stationary drum. This bearing is what turned another "thing" or got turned by it... I think it was the torque converter, but not 4 sure.. I'll have to check.. Anyhow, the bearing somehow failed, and it caused the "thing" spinning inside of it to leave grooves in the drum I was talking about.. These grooves caused metal to disperse in the fluid which he explained led to the syllenoid failure, which would explain why the 1 to 2 shift wasn't working.. this part of the syllenoid showed up as failing on the PCM he plugged into the computer. Next, this fluid was overheating and caused "hot spots" on the Round thin metal pieces, I think the gears if I remember correctly? Well anyhow, all of them,, (atleast 10) needed to be replaced, and he mentioned something about overdrive upshift, downshift, 1 up, 1 down.. ect... He said the magnet in the tranny fluid was Globbed with metal shavings btw. He then said he installed filters, 2 round looking things that I had no clue of, and a few other parts.
As of now, it is running great and instead of a hesitation in the shift as I had from the beginning of the vehicle ownership, It slightly jerks forward and there is definetaly more power in the shifts. Occasionally, when I would be in reverse, I'd still be going backwards when I put it into drive, and the transition would be smooth. NOW, I accidentally did that, and it "jerked" forward... showing that the previous tranny wasn't working correctly.
Anyhow, I'll have to show you the receit (sp?). I'm taking a pic.
the THREE major costs were:
1) Torque Converter 800
2) Syllenoid 300
3) labor 900
The total was 2400 i belive.
Working on the wallet recovery but the truck is running fine now.
Regards,
Jon
Thanks for the response. I picked up my vehicle last week and continued driving it. I am going to take a picture of the receit to show what all the parts that needed to be replaced are, but I just haven't gotten around to that yet.
As for the transmission rebuild, it was a 'domino' effect where one problem led to another, led to another. Basically, I was thinking that upon viewing the malfunctioning parts, I would see mangled twistes metal.. However, this was not the case at all!!
How the mechanic explained it to me was, there was some sort of bearing in a stationary drum. This bearing is what turned another "thing" or got turned by it... I think it was the torque converter, but not 4 sure.. I'll have to check.. Anyhow, the bearing somehow failed, and it caused the "thing" spinning inside of it to leave grooves in the drum I was talking about.. These grooves caused metal to disperse in the fluid which he explained led to the syllenoid failure, which would explain why the 1 to 2 shift wasn't working.. this part of the syllenoid showed up as failing on the PCM he plugged into the computer. Next, this fluid was overheating and caused "hot spots" on the Round thin metal pieces, I think the gears if I remember correctly? Well anyhow, all of them,, (atleast 10) needed to be replaced, and he mentioned something about overdrive upshift, downshift, 1 up, 1 down.. ect... He said the magnet in the tranny fluid was Globbed with metal shavings btw. He then said he installed filters, 2 round looking things that I had no clue of, and a few other parts.
As of now, it is running great and instead of a hesitation in the shift as I had from the beginning of the vehicle ownership, It slightly jerks forward and there is definetaly more power in the shifts. Occasionally, when I would be in reverse, I'd still be going backwards when I put it into drive, and the transition would be smooth. NOW, I accidentally did that, and it "jerked" forward... showing that the previous tranny wasn't working correctly.
Anyhow, I'll have to show you the receit (sp?). I'm taking a pic.
the THREE major costs were:
1) Torque Converter 800
2) Syllenoid 300
3) labor 900
The total was 2400 i belive.
Working on the wallet recovery but the truck is running fine now.
Regards,
Jon
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Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
Hi Jon,
OK, so heat was once again, obviously one of the factors at work here to which specific damage can be attributed, and that may in fact be the sole base factor in all of this, or, it may be in addiiton to whatever else was going on. From the sound of it, a bearing failed due to overheated fluid causing poor lubrication & thus bearing failure, though of couese I'd have to see the parts to b e sure, but it could well be heat alone that is the root cause. By the way, those "round thin metal pieces" are the steels, part of the clutch pack (steels & clutches), so it's common to see hot spots there caused by extreme local heat from clutch slippage (and you'll always have some slippage in any automatic, and these hot spots you see from that is exactly what we want to reduce slippage as much as possible for long life), transmitted to the fluid which then burns when not cooled properly. This is an excellent example of why we in the performance aftermarket are constantly preaching to reduce slippage and use an active tranny cooler.
I'm glad to hear that your shop installed the 2 inline filters, sounds like you should have a good mechanic there.
I do have one question, and that is, there must be a mistake in the price of the torque converter, as I've never seen a stock factory Ford TQ for these F-150's & Expeditions or Lincolns that was more than a coupla-few hundred dollars new, and many of them well under $200 for the torque converter itself, that is not a particularly expensive part in just about any automatic transmission in general, though it requires removing & replacing the transmission, so the labor cost is considerably more than the price of the torque converter. Now, having said that, I don't know if there is anything different that is specific to that 1998 Navigator's tranny as opposed to the Expedition's version of that same transmission (I don't think so from memory), but $800 is *extremely* high for a factory Ford TQ in any case. The best race converters (like the multi-disc PI Stallion lockup units we use) aren't much over $1000 for these trucks & SUV's, so I'm hoping that is a mistake, or that some other parts are included in that $800 price.
Glad to hear you're up & running, and the new transmission feels much better, etc. Hopefully this should put you in good shape for many miles & years to come. Take good care of your new tranny & good luck!
OK, so heat was once again, obviously one of the factors at work here to which specific damage can be attributed, and that may in fact be the sole base factor in all of this, or, it may be in addiiton to whatever else was going on. From the sound of it, a bearing failed due to overheated fluid causing poor lubrication & thus bearing failure, though of couese I'd have to see the parts to b e sure, but it could well be heat alone that is the root cause. By the way, those "round thin metal pieces" are the steels, part of the clutch pack (steels & clutches), so it's common to see hot spots there caused by extreme local heat from clutch slippage (and you'll always have some slippage in any automatic, and these hot spots you see from that is exactly what we want to reduce slippage as much as possible for long life), transmitted to the fluid which then burns when not cooled properly. This is an excellent example of why we in the performance aftermarket are constantly preaching to reduce slippage and use an active tranny cooler.
I'm glad to hear that your shop installed the 2 inline filters, sounds like you should have a good mechanic there.
I do have one question, and that is, there must be a mistake in the price of the torque converter, as I've never seen a stock factory Ford TQ for these F-150's & Expeditions or Lincolns that was more than a coupla-few hundred dollars new, and many of them well under $200 for the torque converter itself, that is not a particularly expensive part in just about any automatic transmission in general, though it requires removing & replacing the transmission, so the labor cost is considerably more than the price of the torque converter. Now, having said that, I don't know if there is anything different that is specific to that 1998 Navigator's tranny as opposed to the Expedition's version of that same transmission (I don't think so from memory), but $800 is *extremely* high for a factory Ford TQ in any case. The best race converters (like the multi-disc PI Stallion lockup units we use) aren't much over $1000 for these trucks & SUV's, so I'm hoping that is a mistake, or that some other parts are included in that $800 price.
Glad to hear you're up & running, and the new transmission feels much better, etc. Hopefully this should put you in good shape for many miles & years to come. Take good care of your new tranny & good luck!