I recently sold a 1990 Honda Accord EX to a lady. No problems until a week later she drove about 50 miles, stopped and parked for about 5 hours, returned to her vehicle and drove off. Since this time the shift points are 1-2 @ 27-32 mph, 2-3 @ 40 - 45, 3-4 upshift will only happen if over 50 MPH and foot is off throttle. Only a slight application of the throttle shifts back to 3rd. These shift points occur at about 10 - 20 percent throttle. I can manually shift from 1-2 and the shift point will be whenever I shift, but no effect on manually upshifting 2-3 or 3-4, which operates as said before, regardless of manual shift input . Throttle link cable to trans appears to be adjusted properly and unmodified from the factory, free of binding. Checked the ABC's too and no problems found (Alternator, Battery, Connections) and fuses. I'd like to service it but the drain plug is seized in the trans and the square hole in the drain plug is cammed out. Fluid is old. Single mother owner awaiting my diagnosis, driving a car with no heat. I stand behind what I sell and I dont want her to get a pig-in-a-poke. Is there hope for this trans or is it cashed? Thanks for any help!

 

Is my question posted in the wrong forum?

 

No but it's a problem that can't really be diagnosed without TCMs...it almost seems to be like it's normal :dunno: The only thing I could think of would be bad shift solenoids, but without any codes, I doubt they're failing. Are you sure the points are delayed excessively? If the vacuum lines to the shift solenoids are secure then I can't imagine what it could be other than a prelude to a tranny failure.

 

my mothers car did that, if i follow your post correctly*, and the tranny ended up being replaced.
*her car will rev excessivly high and finnaly shift, but only when off the gas and as soon as you touch the pedal it down shifts again?

 

I posted this a couple of days ago, and as a result of further diagnosis, must expand the symptom list. Until I fixed this problem I did not think these things were related.

But guess what?? I aint gonna tell you

 

That's pretty damn good...I would not have guessed the TPS but I guess that makes sense. Well done :thumbup: