May want to see if the TV cable is too tight...... If the trans thinks you are stepping on the go-pedal harder than you really are, you get firmer shifts.

 

Understand. I am pretty linear with acceleration and not hot on the throttle. Been setting a couple hours and I'll need to go to grocery store in about an hour so it should be cooled down. Kinda interested if it will self shift after this cool down period.

 

Very erratic shifting quality after overnight cooldown. Sometimes upshifts, most times not. Going to adjust front band 1/8th turn tighter and evaluate.

 

Well for sure cold it does not upshift correct. As it warms it begins to shift correctly but about 1/2 the time it does not fullly downshift to 1st. A rapid pulldown of the gearshift manually forces it down and it may or may not repeat the scenario. Once thoroughly warmed up, it seems to act more normal than not

 

just out of interest do you still have the check valve in your tranny cooler line? mine has been much happier with it gone!

 

Yesterday afternoon I drove back to central IL from Chicagoland and the upshift is erratic. Sometimes correct, sometimes not so much. Are there any adjustments needing addressed when a valve body is changed? It appears something is amiss someplace. I checked the downshift cable last evening on the lift and it can't be misadjusted as it has just a bit of play at the lever before it starts to pull for kickdown.

I'm thinking of reinstalling with the solenoids from the current valve body my original valve body which presented the problem of a 2nd to third upshift when hot. The 1st to 2nd upshift problem never existed until the valve bodies were changed. The transmission was always smooth and linear in operation prior to the 2nd to 3rd gear problem and that too was fine until the vehicle had been driven about 1/2 hour.

I don't know anything about the check valve but the transmission has never had anything but fluid and filter changes every other October as routine maintenance.

 

I suppose it would be worth a shot..... I would be tempted to disassemble and clean it thoroughly before reinstalling it.

 

Throwing this out there. if the tranny is shifting now, just really rough, try popping off your tv cable at the throttle body end, pull your adjuster clip out and pull the cable all the way out from the tranny, set the clip and hook it back on. That takes all pressure off the shifting of your tranny, then re-adjust from there for firmer latter shifts. The service manual setting procedure doesn't account for years of abuse and neglect. Let me know how that goes.