3 replies to this topic

[NYrobbie77]

Hey all. I have a 98 v70 fwd auto with just under 200k miles. Since I bought it last year it has always shifted hard into 3rd, a bit smoother with light throttle. I did a partial drain and fill last month as the trans fluid was black as 3day old coffee. It did not smell burnt or anything

Last few days after a 20 min hwy drive, when slowing down it feels like it stays in either 4th or 3rd gear like if u didn't downshift or push the clutch in, and then finally downshifts and is smooth braking again.

I have no cel or flashing shift light. Does this sound like the trans is getting ready to die or something else?

Thanks in advance.

[Flukey]

Most likely the torque converter clutch is staying applied. The lock-up solenoid is probably clogged. Try a complete flush and add a bottle of Lube Guard
that is in the red bottle. Its worth a try.

[NYrobbie77]

Yah I was thinking possibly stuck TCC too. Am reluctant to do a total flush as the fluid was so old and bad. I did try hitting the brake once I was in TCC lockup and it did unlock right away. Will try another drain and full.

Yah I was thinking possibly stuck TCC too. Am reluctant to do a total flush as the fluid was so old and bad. I did try hitting the brake once I was in TCC lockup and it did unlock right away. Will try another drain and full.

[NYrobbie77]

just wanted to give an update. the problem was fairly intermit then all of a sudden started getting stalling issues, CEL P0120 and after a couple weeks P0123 and getting very erratic shifts, flashing upshift light and lights on shifter. if i let go of the throttle while cruising the trans would downshift violently, also would have late upshifts, once wouldn't go into TCC lockup.

i replaced the throttle position sensor and everything has been cleared up. no more CEL, shifts correctly, even seems to have gotten rid of the harsh upshift into 3rd gear that i always had. its been 2 weeks since i replaced the sensor and no more troubles.