35 mph, High rpm's and no more go.

[klank]

could this be my problem?

If the torque converter is not filled with fluid, it can act like a slipping clutch-high RPM, low speed. This is what my father in law said.

After the engine swap it's doing this. I also think it may be the linkage all goobered up.

[andy d]

uhhmn, linkage has my vote.

[Hammerx]

Did you fill the torque converter b4 reinstall?

[jeepguzzi]

If it is not shifting, then linkage, if it is shifting, see if you have low range engaged. It's been known to happen.

[Rande]

During the engine swap, the Tcase linkage may have been bumped into low range (tranny should be shifting). The vacuum modulator hose may have been knocked off (tranny wouldn't be shifting). I believe the T400 also had a governor built into them that also regulates shifting. gsmikie would be the fellow to talk to, he's the resident T400 guru.

[ November 14, 2003, 07:12 PM: Message edited by: Rande ]

[jode]

Originally posted by Rande:
During the engine swap, the Tcase linkage may have been bumped into low range (tranny should be shifting).That sounds unlikely, but it is EXACTLY what happened to me when I swapped my 401 a few years back...I pulled her out after the rebuild and was ionstantly amazed at the new torque the engine had - I mean, she was really hauling balls - up to about 30mph - at which point it sounded like she was going to blow up (no exhaust donuts didnt help ;) )...that's when I checked the low range lever and somehow it had gotten switched even though I never messed withe the tcase or the linkage.

[gsmikie]

Originally posted by Rande:
During the engine swap, the Tcase linkage may have been bumped into low range (tranny should be shifting). The vacuum modulator hose may have been knocked off (tranny wouldn't be shifting). I believe the T400 also had a governor built into them that also regulates shifting. gsmikie would be the fellow to talk to, he's the resident T400 guru.87 has the 727............thats in the next 2 weeks

[Rande]

Ah, ok. Didn't realize its an '87. Then, would the TV linkage be way out of adjustment?

[gsmikie]

if it's not the transfer case i would get pressure readings from the trans it might be the front pump