92 w250 wont shift out of 2nd warm

[Jl0696]

just got my 92 together and on the road when you first start the truck is shifts fine after about 10 miles of driving and warmed up its having an issue shifting out of 2nd .

also the o/d was wired by the previous owner into 3 relays the brake switch and the od switch but it wasn't hitting o/d so ive installed a toggle grounding the od switch and left the rest of the p/o's wiring intact which is making the o/d work except when i had about 7000lb trailer yesterday it would not hit o/d.

i just replaced the pan gasket and fluid in neutral warm it sits in the middle of the hash marks but after it stops shifting sometimes it will be above the bends in the dipstick and other times it will still be at the normal level

[dazedandconfused]

Did you change the filter?

[ellis93]

So..... I'm having a hard time understanding the post

It wont come out of second with the trans hot and it wouldn't go into o/d pulling a trailer. How do you get it to shift out of second hot
Im not being an Ass just trying to understand

[dazedandconfused]

I'm glad I wasn't the only one confused.

[Jl0696]

yes i changed the filter also.

sorry when it is cold it will hit all gears and overdrive until it heats up. pulling the trailer it would not hit overdrive so i took it home didnt have a problem hitting 3rd with the trailer on but it was a cooler night.

[dazedandconfused]

Was there a bunch of material in the pan when you pulled it the first time?

[ellis93]

Temp sender in the cooler line might be taking a crap on you,or the trans is actually over heating

[DodgeFreak]

if it won't shift out of second when warm and pulling a trailer causes it to loose od might be a pressure issuse. Check your pressures warm.

[dazedandconfused]

I was wondering if the filter might have worked its way loose.

[Jl0696]

yea there was some metal in the pan which i thought was strange since its supposed to have been rebuilt within the last 20,000

[DodgeFreak]

how much metal? Even if the filter worked loose it won't cause a pressure loss. Oil level is above the filter plus when it gets hot its going to rise even more. Sounds more like something is messed up internally causing a pressure loss when the fluid thins out. Did they have the valvebody apart when they rebuilt the trans?

[dazedandconfused]

how much metal? Even if the filter worked loose it won't cause a pressure loss. Oil level is above the filter plus when it gets hot its going to rise even more. Sounds more like something is messed up internally causing a pressure loss when the fluid thins out. Did they have the valvebody apart when they rebuilt the trans?

In a E40D it will cause a pressure loss when filter comes loose so I was wondering in the same would happen in ours.

[Jl0696]

there were some silver slivers and the magnet was covered i only pulled the pan because the seal was leaking . i have no idea what the rebuild consisted of was done by one of the previous owners. so should i start with a band adjustment and go from there or?

[ellis93]

Band adjustment won't help a thing,won't hurt,but won't help. second is the front band,if you have second gear then the band is in spec. If your trans has issues advancing to third,while hot,then more than likely the front clutch lip seals have hardened and bypassing fluid or there is another massive leak some where. Your problem is that you've two different symptoms that really shouldn't go together. It really,to me, should be one or the other.....either you have third gear or you don't have 4th. I ain't saying your wrong on any of it cause there isn't an "all ways" or "never" when it comes to transmission or anything automotive. This stuff will drive you bat siht crazy.....if you don't believe me ask ol'dazed about a Chevy project he had

The best thing you could do for yourself is to take it to a trans shop and have them check the pressures,by checking those they'll be able to tell what's going on.

You can check it yourself if you had about 6' of high psi line and a gauge that reads at pest 300psi. I can post up the pressure specs for the different Ports.

[txs]

If reverse is working its not the front clutch. Does sound like tranny may be getting hot. Get it warmed up to where it wont shift into direct and see if it will back up.