1. Home
  2. Volvo automobiles
  3. 850 Tranny question

850 Tranny question

I have a 94 850 non-turbo with an automatic transmission. About a month ago I had the transmission fluid drained and replaced twice (the car has 138000 miles on it). The transmission normally works fine, but lately, as the weather has turned colder (about 40 degrees overnight) when I first start the car the transmission slips in low gear and is hesitant to shift to the next gear. As soon as the car warms up it works perfectly again--it is only that first cold start of the day. Could this have anything to do with the fluid change? Any suggestions as to what is needed or how to fix it?

Chuck

Reply to
caaron
Loading thread data ...

I wonder if they filled it with the correct fluid? Check the dipstick, does it look/feel unusually thick? Collect some, take to transmission shop and ask if they think it looks / smells like ATF.

-- Email reply: please remove one letter from each side of "@" Spammers are Scammers. Exterminate them.

Reply to
Doug Warner

They definitely used ATF in it. I watched as they did it to make sure.

Chuck

I wonder if they filled it with the correct fluid? Check the dipstick, does it look/feel unusually thick? Collect some, take to transmission shop and ask if they think it looks / smells like ATF.

-- Email reply: please remove one letter from each side of "@" Spammers are Scammers. Exterminate them.

Reply to
caaron

Did they use the correct ATF????? There are many varieties of ATF fluid now. I think your 850 automatic uses a special ATF. Was the work done at a Volvo dealer or Volvo specialist? If you went to a generic shop it is quite possible that they might have put the wrong type of ATF in there ... and I do not trust the "universal" ATF fluids some lubricant companies are selling.

John

Reply to
John Horner

That is a good question. I will check to see in the book what is called for and find out what they put in. From reading other Volvo resource threads I have heard of the same symptoms as a result of a bad gear position sensor (PNP) and wondered if that could be responsible for my problem.

Chuck

Reply to
caaron

Usually a bad PNP switch will cause the flashing yellow arrow which indicates the computer has found a transmission problem. This sounds more like an ATF problem.

Reply to
Stephen Henning

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.