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850 transmission mystery noise Topic is solved

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ToyoToyo
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Year and Model: C70 2002
Location: NY
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Post by ToyoToyo »

A whine in 1st and 2nd that doesn't get louder is pretty common on these older ATs, worth doing another drain and fill with proper ATF and see if it changes before worrying too much.

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jreed
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Year and Model: '97 Volvo 855 GLT
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Post by jreed »

What brand and type of automatic transmission fluid are you using?
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94

snugani
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Post by snugani »

I've been using the Volvo dex3 one from fcp, and one drain and fill I did with the Walmart fluid that's supposed to replace dex3. I saw Robert recommended it in one of his vids.

I did a drain and fill after I noticed the noise and there was no change. I wonder if it may have had this noise since I bought it last year, since the old fuel pump was so noisy it may have covered it up. It was shortly after I changed the pump I noticed the transmission noise. Also when I bought it there was no muffler

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