ATF for a 2000 PSD Auto ?
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ATF for a 2000 PSD Auto ?
There's too much conflicting data...
Had a 30k service done last week, since collecting Moby Dick, he has a "clunk" when the trans engages pulling off the line - it feels like a bad UJ in the driveshaft, but my mechanic says they're all good. As we discussed this, it turns out that Ford gave him Mercon V for the transmission, and _some_ posts say this is bad for this trans.
It seems an extremely suspicious coincidence that the "bad UJ' started the moment the trans fluid was changed, and when moving the race car+trailer yesterday the clunk was 100 times more severe than the genuine bad UJ I had a couple of years ago.
Since Ford has stopped Mercon and now insists Mercon V is good, what brand/version of ATF is truly the equivalent of Ford's Mercon - which has served this truck perfectly well up until now.
Thanks,
Charles
Had a 30k service done last week, since collecting Moby Dick, he has a "clunk" when the trans engages pulling off the line - it feels like a bad UJ in the driveshaft, but my mechanic says they're all good. As we discussed this, it turns out that Ford gave him Mercon V for the transmission, and _some_ posts say this is bad for this trans.
It seems an extremely suspicious coincidence that the "bad UJ' started the moment the trans fluid was changed, and when moving the race car+trailer yesterday the clunk was 100 times more severe than the genuine bad UJ I had a couple of years ago.
Since Ford has stopped Mercon and now insists Mercon V is good, what brand/version of ATF is truly the equivalent of Ford's Mercon - which has served this truck perfectly well up until now.
Thanks,
Charles
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Joined: May 2004
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From: Central Coast of CA
Mercon V has been reformulated to be compatible with our 4R100 trans. That's the fluid you want to run in it. The other stuff is still available (Dex III/Mercon), but no longer licensed by Ford or GM, so they are no longer keeping track to make sure it's formulated "correctly"
Use the Mercon V.
Stewart
Use the Mercon V.
Stewart
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There's too much conflicting data...
Had a 30k service done last week, since collecting Moby Dick, he has a "clunk" when the trans engages pulling off the line - it feels like a bad UJ in the driveshaft, but my mechanic says they're all good. As we discussed this, it turns out that Ford gave him Mercon V for the transmission, and _some_ posts say this is bad for this trans.
It seems an extremely suspicious coincidence that the "bad UJ' started the moment the trans fluid was changed, and when moving the race car+trailer yesterday the clunk was 100 times more severe than the genuine bad UJ I had a couple of years ago.
Since Ford has stopped Mercon and now insists Mercon V is good, what brand/version of ATF is truly the equivalent of Ford's Mercon - which has served this truck perfectly well up until now.
Thanks,
Charles
Had a 30k service done last week, since collecting Moby Dick, he has a "clunk" when the trans engages pulling off the line - it feels like a bad UJ in the driveshaft, but my mechanic says they're all good. As we discussed this, it turns out that Ford gave him Mercon V for the transmission, and _some_ posts say this is bad for this trans.
It seems an extremely suspicious coincidence that the "bad UJ' started the moment the trans fluid was changed, and when moving the race car+trailer yesterday the clunk was 100 times more severe than the genuine bad UJ I had a couple of years ago.
Since Ford has stopped Mercon and now insists Mercon V is good, what brand/version of ATF is truly the equivalent of Ford's Mercon - which has served this truck perfectly well up until now.
Thanks,
Charles
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Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Yeah, I wanted to do the Mark K flush before I drove up to the Riffraff Tech Day this past weekend, but I didn't have enough cash to buy the Merc V.
I still need to do the flush and track down the leak I'm having. I was under the truck for couple hours yesterday cleaning the underside.
Stewart
I still need to do the flush and track down the leak I'm having. I was under the truck for couple hours yesterday cleaning the underside.
Stewart
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Update in case other people suffer the same problem.
Truck went back in, re-flushed removing the Ford Mercon V, replacing with NAPA Mercon/Dextron III and the clunk/thunk has vanished, the trans is back to how it used to be.
Perhaps Mercon V works some/many 4r100s, but not mine, it seems. I'll be greasing the slip joint in a couple of days just in case, but one thing at a time when troubleshooting :-)
Thanks everyone !
Charles
Truck went back in, re-flushed removing the Ford Mercon V, replacing with NAPA Mercon/Dextron III and the clunk/thunk has vanished, the trans is back to how it used to be.
Perhaps Mercon V works some/many 4r100s, but not mine, it seems. I'll be greasing the slip joint in a couple of days just in case, but one thing at a time when troubleshooting :-)
Thanks everyone !
Charles
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