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740 transmission quits, then works after restart

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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ronboonville
Posts: 2
Joined: 15 May 2013
Year and Model: 740g 1989
Location: boonville, mo.

740 transmission quits, then works after restart

Post by ronboonville »

I am new here and have a problem I need help with. 1989 740g, it starts and takes off fine but after about a block it acts as if the trans becomes disconnected. I drained the trans fluid and it was brown. so I refilled and drained again, again brown. drained again, getting kinda red now so refilled again. it drives a couple of blocks then slips out of gear again, but if you shut it off and restart it you can go again a couple of blocks. it feels like it is hunting for a gear to shift into when it starts messing up. I had a similar problem with a jeep grand cherokee and replacing th throttle position sensor fixed it. so I drained it and filled it three times shouldn't that be enough? anyone think it might be the throttle position sensor?

ronboonville
Posts: 2
Joined: 15 May 2013
Year and Model: 740g 1989
Location: boonville, mo.

Post by ronboonville »

Wow, guess no one has had this problem or has a clue how to fix it.

5ft24
Posts: 203
Joined: 14 April 2013
Year and Model: 2005 XC90 V8 AWD
Location: Sedro Woolley, Washington
Has thanked: 20 times
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Post by 5ft24 »

When it quits, if you leave it running and check the fluid, is it still full? Maybe pull the pan and change the trans filter.

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