LQ9Chevelle

Hi, I have a 2000 honda civic with a auto trans. It has started acting up on me, car has 90k miles. Sometimes, transmission will start holding second gear for no reason, letting the motor rev up to 4-5k rpm before shifting into third. Im not on the gas hard, just driving normal. Is their a solonoid / valve / regulator or modulator that i can change to fix this? Im a GM guy, but i dont play with hondas very often and need to fix this for my sister. Any help is appreciated. Thanks!

ScottDR

Hello,

First off is it throwing any codes? That would be indicated by the shift indicator on the instrument panel flashing. If so, you need to find out the code it is given. If not, do a stall speed test. Fully warm up the car and then apply the parking brake and full brake pedal...place the transmission in D4 and then full throttle for 6 seconds. Don't do it longer as it will cause some burning of the fluid. Then repeat in 2 and in R. All should yield between 2,550 and 2,850 RPM to be within specification.

If not try changing the fluid with Honda ATF Z1(unless it was done recently with that fluid). It's a drain and fill transmission and can be essentially flushed by doing that change three times.

If that all checks out ok, then I'd connect and test with a oil pressure guage hooked into the correct inspection holes.

Let us know what you find out. I've not heard of this type of a problem but I've never known anyone to have Civic auto tranny problems (unless they never changed fluid or put in Dexron III as Honda completely engineered/designed their transmissions around Dexron II).

Good luck!

gearbox

iTrader: (95)

almost sounds like a throttle body issue, maybe a misaligned tps. i know the TB affects how the trans shifts.

ScottDR

Gearbox,

Wouldn't a misaligned TPS also affect the other gears? Interesting theory though. It's easy to check the voltage at the ECU, worth a shot!

gearbox

iTrader: (95)

yeah i guess it would. that means its prolly something wrong with the trans, or one of the sensors. usually it causes the D light to blink on the gauges tho.

ScottDR

Yes, that's why I asked that of the poster. We'll see if they respond.