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99 V70-XC - new Transmission doesn't work

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Niamhsdad
Posts: 14
Joined: Mon Mar 18, 2013 4:57 pm
Year and Model: V70 XC AWD 1999
Location:

99 V70-XC - new Transmission doesn't work

Post by Niamhsdad »

Hello all,
I recently replaced my transmission in my 99 V70-XC, it was so much more work than on my 850. Job went smoothly, and everything checked out well. I lowered the car, backed it out of the bay, let it idle to check leaks and such, and then nothing. There gear selector would move, but the trans wouldn't engage. not in any gear. I already posted about the possibility of a bad ABS module. So i bought on from Midwest ABS, got it in yesterday along with the old PNP switch from my old trans (just in case it was losing contact when warm). Still the same symptoms, after a few minutes when the trans is warm, it fails to engage. if i disconnect the neg. battery terminal, and reconnect it, i can put it into gear and it will move for a min. and then nothing. I am stumped..... Please tell me its something other than a bad trans. It is used from a local yard. (I have used them for years. there parts are always top notch). Another note. the front pan looks like it was removed in the past, there is red RTV slathered all over it. Thanks in advance for any help. I need this car to run. its my only ride.

Matty Moo
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Year and Model: 850, 1996
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Post by Matty Moo »

I'm going to assume that you've checked the atf level.

I had this exact same scenario unfold but it was only when it was below freezing. Jimmy57 posted something awhile back about something rubber in relation to the drums drying out/shrinking and adding a certain additive may help.
Image
http://www.midwest-abs.com
Simplycleanpowerwash.com

1996 850 Platinum Wagon. ARD Green Tune, OBX.-Gone
1998 s70 ARD tune, EST exhaust, SE/R interior.
1999 s70 Plain Jane.
2000 s70 GLT
2014 Ram
2012 Jeep Wrangler Unlimited

Niamhsdad
Posts: 14
Joined: Mon Mar 18, 2013 4:57 pm
Year and Model: V70 XC AWD 1999
Location:

Post by Niamhsdad »

Thanks for the response, yes i checked the fluid... wouldn't that be nice, if that was it. Additive may help, however for $650.00 i want the trans to function properly. I think i am just going to have to pull it and hope the next one works. It comes with a 90 day waranty. I can't seem to come up with any thing else it could be. It works great when its cold, and then nothing.. so to me that says the TCU works, and the now the abs light is off so the module works. and the PNP is off my old trans wich i know was good. So aside from something inside the trans itself, what more is there that would cause it to fail when it gets warmed up?

Niamhsdad
Posts: 14
Joined: Mon Mar 18, 2013 4:57 pm
Year and Model: V70 XC AWD 1999
Location:

Post by Niamhsdad »

Hello again, I contacted the JY and they drove the car with the donor trans in. So they verified it does work. I replaced the ABS module with one from matty moo and drove down the road. made it 1/2 mile and, no more trans at all.. It through codes P1618 and P0705. is there any chance its the internal wiring in the trans itself heating up and failing? I am at a total loss here.

Matty Moo
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Year and Model: 850, 1996
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Post by Matty Moo »

Niamhsdad wrote:Thanks for the response, yes i checked the fluid... wouldn't that be nice, if that was it. Additive may help, however for $650.00 i want the trans to function properly. I think i am just going to have to pull it and hope the next one works. It comes with a 90 day waranty. I can't seem to come up with any thing else it could be. It works great when its cold, and then nothing.. so to me that says the TCU works, and the now the abs light is off so the module works. and the PNP is off my old trans wich i know was good. So aside from something inside the trans itself, what more is there that would cause it to fail when it gets warmed up?
I went through the exact same thing and it wouldn't trip any trans codes at all.

They gave you the exact same trans?
Image
http://www.midwest-abs.com
Simplycleanpowerwash.com

1996 850 Platinum Wagon. ARD Green Tune, OBX.-Gone
1998 s70 ARD tune, EST exhaust, SE/R interior.
1999 s70 Plain Jane.
2000 s70 GLT
2014 Ram
2012 Jeep Wrangler Unlimited

Niamhsdad
Posts: 14
Joined: Mon Mar 18, 2013 4:57 pm
Year and Model: V70 XC AWD 1999
Location:

Post by Niamhsdad »

Yep, same trans. everything works great when cold, that is what trips me out on this. why would it work when cold then not when hot. Could it be the valve body and solenoid picking up old trans fluid goop? (read that on another forum). I know i'm reaching here, but i just don't want to have to swap out the thing again.

JRL
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Post by JRL »

1618 is a communication error.
You may need to check every wire to the ECU or the TCU (not a lot of fun)
2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

Contact info for purchases: jrl1194@aol.com

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FLXC90
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Post by FLXC90 »

Before shooting all the wires, try disconnecting the battery, disconnecting, cleaning, and reconnecting the harnesses to the ECU/TCU, and the trans. (705 is for the PNP, so I would start there, maybe the plug isn't seated well, or row it through the gears a few times. Then do the reconnect in position II procedure (I have a 98, so I don't know the drill!)
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)

Niamhsdad
Posts: 14
Joined: Mon Mar 18, 2013 4:57 pm
Year and Model: V70 XC AWD 1999
Location:

Post by Niamhsdad »

I just tried to flush it per the instructions here. It looked pretty nasty. The thing is though, after the the second round of flushing, It just stopped pumping out the fluid. I need to know what to tell the salvage yard, is that the main pump, or could it be a valve body clogged. Thanks again. also, it didn't throw the codes until i got stranded down the road and kept trying to make it home before towing it.

Niamhsdad
Posts: 14
Joined: Mon Mar 18, 2013 4:57 pm
Year and Model: V70 XC AWD 1999
Location:

Post by Niamhsdad »

For anyone who has been following this. I checked with the local volvo mechanic,(not dealer) and it turns out the main pump was failing when hot. I am back to pulling it and replacing it with yet another one.
Hopefully this time it will work as expected. I learned a great deal about auto trans that i didn't know.
Thanks for all the help.

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