[quote="MadeInJapan"]No, it's not the same...actually there is a transmission speed sensor which causes the engine to run at different speeds as well as a Vehicle Speed Sensor...I'll post both fixes from VADIS below:
madeinjapan, i'm assuming the vehicle speed sensor has anything to do w/ the faulty gearbox problem in this thread?
850 automatic transmission
This topic is in the MVS Volvo Repair Database »
Classic PNP Switch Shifting Fix
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milesursogood
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- Year and Model: 850 T-5, 1997
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MadeInJapan
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- Year and Model: '98 S70 T5 '07S40T5
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I don't have a clue- the thread is over 2 years old- I'll go back and re-read....
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo
My 855 has had a hesitation (slip) that was worse in the cold. After much searching and a flush, PNP cleaning and a valve body cleaning, I found the problem. The seals on the transmission get hard and don't seal well, especially when cold.I used Lucas transmission fix and after a week the problem is largely solved. This allows fluid to leak aroung the seals and increases the time for the pistons to lock the clutch.
There are a number of products that may work just as well. I am angry with myself
as I knew this from many older cars. The problems that I had experienced with them was not shifting into gear when cold. These were the transmissions that didn't rely on solenoids to shift, but pistons to open and close passages.-
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