ok Ive bought 1990 740, 46,000 milesw/ auto trans not shifting into OD(only once in a while). any help would be greatly appreciated..

Not driven much at all actually sat without being started for about a year, and i fear the lady never went over 40mph??
shifts well other than to OD heres what if found so far . Am i missing anything

cable adjusted so there is small amt of slack at idle.

fluid level is good

arrow works with button only

power to solenoid: yes

solenoid clicks with power directly to it ( does this mean its good?)

 

You can check/replace the OD relay.

 

[align=left]Is there any pattern to it? Does if fail to shift when it's warm? How about the speed? When it's cold it should shift easier at 38 mph. When it's real hot, maybe it won't shift until 55 mph?
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from what i understand if the overdrive bypass button and arrow work appropriately then its not the relay.

No pattern , OD just works sometimes , but doesnt work most of the time

 

If the solenoid clicks with power directly to it, then it sounds ok, but are the wires leading to and from the solenoidok? Here is a link for some good info on the trans. Hope it helps.
http://www.vcoa.org/700-900-faq/Tran...to.html#AW7071

 

i had read one of the posts(tech's) that even if the solenoid clicks that doesnt neccessarily mean its good? is that true?
there is power to the solenoid as previousely stated, wires are fine...

 

I am not 100%sure. Tech knows A LOT more than me, so maybe he can jump in and help. The other option is the OD bypass switch from ipd, that is if you rarely use the OD. http://www.ipdusa.com/Volvo-700/Tran...-194-669-1892/

 

thanks for the info tipsp


the overdrive is in use unless you see the orange arrow . when you pust the button and the arrow illuminates you are disengaging the over drive...but thanks any way

that product will bypass the option to disengage the overdrive

still need a definative answer in the solenoid question of if it clicks with direct power does it mean it works right?

 

That doesn't always mean it is good. It can click but not be switching over internally.

 

thanks
found this on for mentioned link

[Rob Bareiss/Scott] The solenoid is normally closed, cutting off the fluid flow necessary for 4th gear or "overdrive". When energized with the overdrive arrow light "off" the solenoid opens up and allows the trans to shift into 4th. The solenoid must pass fluid through when energized, or it's either not working or plugged up with dirt. Just because it "clicks" does not mean it is passing any fluid. The first test is to park in a quiet place, open the drivers door and switch the OD on and off while listening for a click under the car. If you don't hear it then it is bad. If you do hear a click that does not necessarily mean it is good: it could be dirty and not passing fluid.
[Steve Sakiyama] There have been a few posts on autotrans overdrive problems (won't shift into 4th) when the brick is cold. The problem disappears when the car warms up. I have an AW71. When cold it would not go into 4th (OD) until the car had been driven for 10 minutes. This would happen more and more frequently until it was a regular pattern. I checked/dealt with fluids, OD relay, wiring, and downshift cable but the ultimate problem was the overdrive solenoid which sits on the side of the tranny. Although I had bench tested it and it seemed fine,an experienced tranny tech said it just doesn't sound and feel right. Replaced it with a used one (with the two inner o-rings), and the brick is fine. [DougC] According to Bentley, with the solenoid in your hand and disconnected, you should cover the oil passages between the o-rings, and blow through the hole on the end of the solenoid. The valve should be tight, and no air should pass through. With it energized with 12 volts, you not be able to blow air through with the same holes uncovered. It says also to check for blocked passages and damaged o-rings.

 

Cool. Good luck. Sorry I couldn't of helped more.

 

took off the solenoid cut a groove between the two holes and whala it works great ... cost $0. about 1hour labor..

 

Thats awsome. So you really bought the car with 46,000miles? How much did it cost, if you dont mind saying?

 

no prob. I bought it off an older couple who had to go into an extended care facility for health resons. i gave them $1000. Which is a good deal especially since the trans issue is fixed..
and im the second owner...

 

Glad all worked out well for you.

 

That's awsome. At that price, it is a steal!

 

WHAT DID YOU USE TO CUT GROOVE TO CONNECT THE 2 HOLES?
THANKS IN ADVANCE....