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Solve the leaking ATF mystery on the $400 850

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- 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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erikv11
Posts: 11800
Joined: 25 July 2009
Year and Model: 850, V70, S60R, XC70
Location: Iowa
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Re: Solve the leaking ATF mystery on the $400 850

Post by erikv11 »

I have only replaced the front pump seal when pulling the engine and transmission out for an engine swap. Agreed, the seal itself is trivial to do but it is a lot of work to get to it.

Can you do the job by taking the transmission out the side? Or maybe you are better off just pulling the engine, doing the RMS at the same time.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

claymore850
Posts: 145
Joined: 28 March 2010
Year and Model: 850 T5, 244, V70 2.4
Location: Guatemala

Post by claymore850 »

Your inner torque converter / gear box seal is leaking..just a US20 bucks part... Is not big deal to change the seal, but has a lot of work involved, im sure is easy to change it if you remove the complete engine +gear box.. if you decide to remove just the gear box (well explained on Haynes Manual) the time consumed is almost the same, but the headache is bigger.

If you have tools and time (and a lot of patience) can save a lot of Money changing it by yourself.

User avatar
erikv11
Posts: 11800
Joined: 25 July 2009
Year and Model: 850, V70, S60R, XC70
Location: Iowa
Has thanked: 292 times
Been thanked: 765 times

Post by erikv11 »

OK he said the same thing I did and added that taking the trans out the side is a total pain. I sort of thought that too.

If I was you I wouldn't totally give up on this car yet. Read the tutorial on this site about engine swaps, seriously. You need jackstands and an engine hoist (rent, borrow or buy). Pull the engine with trans attached, change the two seals that have been mentioned (Rear Main Seal is the second one), but new intake and exhaust manifold gaskets, you are done for about $150. If you pay a shop to do this they will charge you $700 minimum usually more like $900+.

Of course, that advice assume you are CERTAIN about where the leak comes from.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

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