V70 AWD Gearbox Issues

markpin · Sep 19th, 2021, 23:25

Hi

My 1997 AWD AUTO has suddenly lost its gears after a number of longer journeys in the summer but with not signs of a problem on the way until it happened. I was first thinking it could be ECU or other control issues but when I looked at the oil it was quite black, suggesting a burn out clutch I imagine.

I did flush the oil completely and refill just for the sake of it but unfortunately the issue appears to be just be getting worst. The car puts the arrow into flash mode and I also get a system light on, green and orange triangle on the lower right of dash. If I clear the codes, it works for a few yards and then it all fails again. When working it appears to go through most gears reasonably although 3rd is a very slow change. The error code suggests issues with either 3rd or sometimes 4th gear ratios.

Before I pull it all apart, I was wondering if anyone could suggest any other tests I should do to make 100% certain its not a stupid electronic fault causing issues. I actually feel the oil colour shows the way but I have not yet played much with this type of transmission.

The car has done just under 110000, 17000 with me since I bought it nearly two years ago. Its a great car so this is quite frustrating.

Any pointers would be appreciated, along with any information about good auto gearbox internal parts suppilers and images of the internals of the gearbox for when I strip it down.

Thanks

SteveSarre · Sep 21st, 2021, 07:36

Hi markpin,

No particular experience of stripping a gearbox, but in case it helps, what codes are thrown?

(If you have a code reader that can read them).

Steve

markpin · Sep 24th, 2021, 00:21

The first code related to 'in-correct ratio on 3rd gear' and the second code was similar but about 4th gear.

I haven't bothered to clear or check the codes since I managed to nurse it home a week ago. I will look further at some point but as at certain points on the way home it lost drive completely, I am not holding out much hope.

SteveSarre · Sep 24th, 2021, 18:22

Hi Markpin,

I googled for

volvo 1998 v70 awd "gear 3 incorrect ratio"

and found some relevant posts - but it's not looking good.

Hope that helps,
Steve

markpin · Sep 30th, 2021, 23:57

Yes, I am not expecting to find a silly error with it, the total drive failure and black oil points to internal clutches wearing out I think.

I have now bought another car to scrap with good working gearbox so its only total lack of time thats now holding me back!

Sep 19th, 2021, 23:25	#1
markpin Junior Member Last Online: Feb 5th, 2022 22:53 Join Date: Nov 2013 Location: Norwich	V70 AWD Gearbox Issues Hi My 1997 AWD AUTO has suddenly lost its gears after a number of longer journeys in the summer but with not signs of a problem on the way until it happened. I was first thinking it could be ECU or other control issues but when I looked at the oil it was quite black, suggesting a burn out clutch I imagine. I did flush the oil completely and refill just for the sake of it but unfortunately the issue appears to be just be getting worst. The car puts the arrow into flash mode and I also get a system light on, green and orange triangle on the lower right of dash. If I clear the codes, it works for a few yards and then it all fails again. When working it appears to go through most gears reasonably although 3rd is a very slow change. The error code suggests issues with either 3rd or sometimes 4th gear ratios. Before I pull it all apart, I was wondering if anyone could suggest any other tests I should do to make 100% certain its not a stupid electronic fault causing issues. I actually feel the oil colour shows the way but I have not yet played much with this type of transmission. The car has done just under 110000, 17000 with me since I bought it nearly two years ago. Its a great car so this is quite frustrating. Any pointers would be appreciated, along with any information about good auto gearbox internal parts suppilers and images of the internals of the gearbox for when I strip it down. Thanks

Sep 21st, 2021, 07:36	#2
SteveSarre Premier Member Last Online: Today 11:57 Join Date: Oct 2004 Location: London/West Country	Hi markpin, No particular experience of stripping a gearbox, but in case it helps, what codes are thrown? (If you have a code reader that can read them). Steve __________________ V70 2.5 Turbo AWD Man. 1999 Red V70 2.5 10V Auto 1998 Green C70 T 20V Auto Conv. 2001 Blue, C70 T5 Auto Conv. 2000 Blue V70 2.5 Turbo AWD Auto 1998 Green, V70 2.5 10V Auto BiFuel 1999 Red (scrapped) V70 20v Auto 1999 Green (scrapped)

Sep 24th, 2021, 18:22	#4
SteveSarre Premier Member Last Online: Today 11:57 Join Date: Oct 2004 Location: London/West Country	Hi Markpin, I googled for volvo 1998 v70 awd "gear 3 incorrect ratio" and found some relevant posts - but it's not looking good. Hope that helps, Steve __________________ V70 2.5 Turbo AWD Man. 1999 Red V70 2.5 10V Auto 1998 Green C70 T 20V Auto Conv. 2001 Blue, C70 T5 Auto Conv. 2000 Blue V70 2.5 Turbo AWD Auto 1998 Green, V70 2.5 10V Auto BiFuel 1999 Red (scrapped) V70 20v Auto 1999 Green (scrapped)

Sep 24th, 2021, 00:21	#3
markpin Junior Member Last Online: Feb 5th, 2022 22:53 Join Date: Nov 2013 Location: Norwich	The first code related to 'in-correct ratio on 3rd gear' and the second code was similar but about 4th gear. I haven't bothered to clear or check the codes since I managed to nurse it home a week ago. I will look further at some point but as at certain points on the way home it lost drive completely, I am not holding out much hope.

Sep 30th, 2021, 23:57	#5
markpin Junior Member Last Online: Feb 5th, 2022 22:53 Join Date: Nov 2013 Location: Norwich	Yes, I am not expecting to find a silly error with it, the total drive failure and black oil points to internal clutches wearing out I think. I have now bought another car to scrap with good working gearbox so its only total lack of time thats now holding me back!

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