1995 850 glt auto trans upshift light flashing

bapsdad · Post by **bapsdad** » 02 Nov 2010, 19:15

1995 850 wagon glt 207,000 plus miles sons car he was driving home when the up shift arrow started to flash he looked in owners manual ( bring it to the dealer ) is about the only fix he checked fluid it was over full and gray.it was not burnt it was not full of bubbles just over filled and gray he has had to add engine oil to it about a quart every 500 miles is there anyway the motor oil could be getting into the trans fluid ? 25 years working on chryslers i have never seen this one.about 3 weeks ago we changed oil and filter and checked all fluids and the trans was nice and red then.thanks for any help

FCPEURO · Post by **FCPEURO** » 02 Nov 2010, 19:37

Yes, it is possible for the engine oil to mix with the transmission fluid. There is an oil cooler and transmission cooler built into the radiator that if it cracks, the fluids can fix together. You should also check your engine coolant and make sure it is not getting in there.

Post by **Red-Arrow** » 02 Nov 2010, 20:09

That sounds messy and I have never heard of grey oil either.

You can buy a oil cooler from the FCP guys above me. I used there website and its spot on for price and speedy posting.

Post by **jblackburn** » 03 Nov 2010, 08:28

There is an oil cooler and transmission cooler built into the radiator that if it cracks, the fluids can fix together. You should also check your engine coolant and make sure it is not getting in there.

They're on opposite sides of the radiator though...so no. Plus, this is an NA engine, so it doesn't have an oil cooler. Usually it's the coolant and oil/ATF that mix, which is very bad news.

I'm not sure what would make it turn grey though.

jonesy850boosted · Post by **jonesy850boosted** » 03 Nov 2010, 16:20

Have you checked the code for the flashing arrow? It would be worth a shot to drain and fill the transmission using something like 25 quarts. After you fix the contamination issue (if thats the case) with the radiator of course.

bapsdad · Post by **bapsdad** » 03 Nov 2010, 16:31

ok today in day light and checking car has trans cooler lines only no oil lines.coolant on the low side of ok clean and green.i think car has 2 problems (3)realy 1using oil ?pvc ?will check this weekend.2gray looking trans fluid =red trans+green coolant +yellow dipstick =dark out poor light sorry today fluid is milky looking and son said he added coolant last week.3 don't know anything about the newer volvos in the early 80's i worked at a dealer and that is why i was happy my 16 year old son liked this car.i ordered a radiator today will change this weeked and flush trans

bapsdad · Post by **bapsdad** » 15 Nov 2010, 05:25

well we replaced the radiator,flushed the trans every thing was looking good until we drove for about 2 miles and the light started to flash agin.i will check for codes when i get the coolant leak fixed on my truck.driving car the trans fluide was a little cloudy maybe just needs more flushing i hope

jonesy850boosted · Post by **jonesy850boosted** » 15 Nov 2010, 09:13

you can check the codes right there under the hood using jumper in the A-1 terminal, and pressing the little black button and counting the flashing red light. 3 digits, like 3-2-2. A quick search on checking codes will give you better details

Post by **MadeInJapan** » 15 Nov 2010, 14:44

If fluids are mixing, don't delay. On my son's '94 non-turbo 850 that's what happened. When the transmission finally died, they took it apart and turned it over and green fluid came out of it. We put a used/good transmission in it and are using a separate tranny cooler and not running the tranny fluid through the radiator anymore and it works fine again...but when it died, it died from a catastrophic, sudden failure.

bapsdad · Post by **bapsdad** » 01 Dec 2010, 06:39

sorry for not getting back before now.the code was 323 torque convertor slip.we flushed with over 5 gallons of trans fluide and with the replacement radiator cleared codes and drove light started to flashing agine same code 323 flushed and added a trans cleaner that dose not swell seals it was called sea foam cleared codes still flishing light told son to drive it would eather go or blow he drove the car about ten miles and went to store went to leave car would back up but would not go in drive he call hade him check fluid agine still red he started the car would not go forward i told him to put it into low instead of drive the car moved i told him to head home he put the car in drive it was shifting fine the light was no but not flashing almost home the light went out also so good to go also found out that the car has 259,000 oddmeter dont work going to flush after he drive for a couple of weeks or when i get his truck going THANKS FOR EVERYONES HELP LEO