17 replies to this topic

[precopster]

I now have 2 gen 1 V70s both NA. One is a '99 and the other is a 2000.

One of them an April '99 build requires an engine rebuild and is mated to a good AW50-42LE four speed & the other is a Dec '99 build with a good engine but it has a AW55-50SN five speed which is jerky and has a flashing arrow. It engages all five ratios but seems to be misbehaving; it slips then engages gear when idling then taking off & shifts are jerky. Not certain what this means.

Fluid has not yet been replaced.

Given that a fluid change doesn't fix the transmission can I use the earlier built car to donate it's four speed? I can access looms, computers etc from the donor car. Will this work in the ;ater car?

[Ihatespeedbumps]

Sure it's possible, but you need to swap the trans, TCU, ECU and wiring harness from the 99 into the 2000.

[JRL]

Mileage on the 5 speed?

[precopster]

Both cars have 250,000Kms or about 160K miles. I'll try a fluid change first then see how it goes. I would love to tell you the colour of the fluid in the five speed but I can't locate the dipstick

[Ihatespeedbumps]

It's below the lower radiator hose. It's very important you get the fluid level correct when flushing and of course the level should always be checked with the engine running.

[precopster]

Thanks very much for the info, Just had a look for it, along the whole length of the lower hose.......no dice.

I have been spannering my 850s and 960 for afew years now, just recently bought and sold a 2003 XC70 and I had no trouble finding the dipstick on any of these cars. Are you certain the very early 5 speeds had one? This certainly makes a flush interesting work without one!! Perhaps I can download a user manual for the car somewhere??

[precopster]

Found the little stumpy sucker hidden under a wiring loom. Colour of fluid is fine very red. After replacing cylinder 2 coilpack I've eliminated a misfire which was read with my scanner. I also read P0172 which reads bank 1 too rich. I pulled two spark plugs 1 & 2 and they were very sooty. Time for an O2 sensor?

The transmission has that annoying habit of going into and out of a neutral when coming to a stop; very jerky. The test drive I just had proved a hesitation when going into third gear, but no transmission light flashing after clearing the codes.

It stranglely reported a P810 clutch position (it's an auto) though I think the misfiring coilpack may have caused that.

She may be OK for the time being, just have to hunt down the rich running problem. Can a software upgrade fix that annoying false neutral?

Any suggestions much appreciated.

[(n)A-GAME]

Shot in the dark, but has the ETM ever been replaced?

[precopster]

Thanks I'll check the sticker to see if it's white or yellow; no history at all on this car. I have a spare one (original white sticker though that car is untested) from the '99 car so all is not lost.....yet.

The throttle feels OK (no hunting and linear) except for the 2nd to 3rd shift and the falso neutral stuff. Idle speed is also constant. From what I've read about ETM failure it doesn't seem to have the symptoms but I know early symptoms can be misleading.

[precopster]

Just had a look at the ETM sticker; it's a yellow one. Does this mean it's been replaced or that it's a later build?

[Ihatespeedbumps]

Yellow label is the later version, this does not guarantee that latest software is installed, which is more important.

Doubt this issue is ETM related though...

[precopster]

Changed the battery and let it be without power for at least 30 minutes. Changed the air filter which was VERY dirty as well as the cabin filter.

Took the car for another half hour drive and lo and behold there is no engine code. It is very smooth, has plenty of power for an NA car and shifts willingly on demand. The P0172 seems to have disappeared. Can a very clogged air cleaner cause the P0172 code?

The transmission seems to be behaving better, though the false neutral is still there. Also the 2nd to 3rd shift has a hesitation but by no means is it bothering me.

Would cleaning the ETM throttle body help this hesitation even though it's restricted to one shift gate?

[xlr8ing]

Isn't there a software update for the 5 speed transmission? By the sounds of it your car doesn't have it. If I remember correctly, these cars would shift into neutral when coming to a stop and then re-engage when you step on the gas.
Might be something to look in to.

[Ihatespeedbumps]

Yes, a TCM upgrade will remove the neutral function. This should be done to ALL early 5spd auto vehicles.

[KlausC]

Yes, the tranny needs a software update.
If you are still running rich, look for a loose vacuum fitting before you replace the front O2 sensor.

[precopster]

Thanks very much for the suggestions, the P0172 disappeared and hasn't returned. I'll have the software updated first chance I get.

[precopster]

Just to close the loop on the thread I had the software update done at dealer on both ECM & TCM and false neutral is gone. The P0172 never returned (three months now)

Swapped out the B4 servo cover (a $22 item) , put in synthetic trans fluid with drain & fill method and yanked battery cable to try and let it relearn new shift patterns.

It's now pretty drivable but still has a poor 2nd to 3rd shift and very occasional slam into third but there's no way I'll be spending the dealer recommended $4,500

[precopster]

Another update to this 5 speed saga. P0172 is still absent. Went for a extended drive up and down mountainous areas near Sydney last week and did a lot of held gear work for engine braking and lots of full throttle shifting up and down the rev range (mostly up in the top of the rev range) The whole trip was around 1,100 miles return from Melbourne.

Good news is the 2nd to 3rd gear flare is GONE!! I couldn't believe it when it began shifting smoothly and the thump it sometimes does is so small it's almost unnoticable. My only guess is that the trans needs this type of driving to adapt or just put it through the adapt cycle with Vida/Dice which is something I was putting off. More than a week after the trip it continues to behave. Should have done the adapt at the dealer earlier as I have put nearly 3,000 miles on her with the flare.