Overdive not engaging
#1
Overdive not engaging
Hey everyone,
I'm a proud owner of a 1992 940 GL 8-valve (non-turbo) and recently the overdrive has refused to engage the 4th gear. It has always been somewhat flaky since I bought it in 2004. By 'flaky' I mean that once in a great while it would automatically cut out, usually on the highway (making for some hair and RPM raising drives) and after a while of jamming the switch it would eventually come back on. Unfortunately it has recently **** the bed and refused to engage at all leaving me unable to drive on the interstate or above 45 miles per hour really. I'm hoping that someone can send me in the right direction if possible. I'm considering purchasing a new OD relay as it's cheap enough at around 50 bucks. If anyone has any experience with this type of situation I would be most grateful. Any sort of advice would be helpful. I'm hoping it's not the transmission itself but if it is, so be it.
EDIT: The car is an automatic, the OD light has never worked (I was unaware one existed) and I have checked through the forums but want an expert opinion. Furthermore, is it possible to just clean the contacts on the relay?
Thanks in advance.
I'm a proud owner of a 1992 940 GL 8-valve (non-turbo) and recently the overdrive has refused to engage the 4th gear. It has always been somewhat flaky since I bought it in 2004. By 'flaky' I mean that once in a great while it would automatically cut out, usually on the highway (making for some hair and RPM raising drives) and after a while of jamming the switch it would eventually come back on. Unfortunately it has recently **** the bed and refused to engage at all leaving me unable to drive on the interstate or above 45 miles per hour really. I'm hoping that someone can send me in the right direction if possible. I'm considering purchasing a new OD relay as it's cheap enough at around 50 bucks. If anyone has any experience with this type of situation I would be most grateful. Any sort of advice would be helpful. I'm hoping it's not the transmission itself but if it is, so be it.
EDIT: The car is an automatic, the OD light has never worked (I was unaware one existed) and I have checked through the forums but want an expert opinion. Furthermore, is it possible to just clean the contacts on the relay?
Thanks in advance.
Last edited by Fresheadies; 09-26-2009 at 11:12 PM.
#2
Overdrive..
I had a similar situation w/my 240 wagon. I'm not a mechanic, and don't know much, but what I didnt know is that there is a fuse for fourth gear overdrive.. You've probably checked this, but if not it's the cheapest place to start..
I just replaced my alternator and now my battery trouble light comes on only when I turn the car off! Looking for answers here.. I am interested in knowing how you make out w/your OD... b.knapp62@yahoo.com
I just replaced my alternator and now my battery trouble light comes on only when I turn the car off! Looking for answers here.. I am interested in knowing how you make out w/your OD... b.knapp62@yahoo.com
#3
it can be a bad relay, the wiring, or the solenoid on the trans.
pull the relay and check. http://www.volvoclub.org.uk/faq/Tran...OverdriveRelay
relays are easy to change. check under the car and see if the wires look okay.
wait for the experts to get on.....
pull the relay and check. http://www.volvoclub.org.uk/faq/Tran...OverdriveRelay
relays are easy to change. check under the car and see if the wires look okay.
wait for the experts to get on.....
Last edited by TIPSP; 09-27-2009 at 12:15 AM.
#4
#6
I removed the large white relay on the right side of the cluster and this is what I found:
http://i621.photobucket.com/albums/t...s/IMG_0918.jpg
http://i621.photobucket.com/albums/t...s/IMG_0917.jpg
There do not appear to be any breaks in the solder, but I'm certainly not a mechanic (just love my Volvo to pieces) and this is my first time dealing with relays and/or electrical problems in general so I'm not positive what it would actually look like. I checked out TIPSP's link and I had difficulty differentiating between 'healthy' and broken solders. And adub, yes I've noticed there have been many people with this issue and a sticky should be in order. Thoughts please....
EDIT: Furthermore, is it possible to test the continuity of the relay itself? I have access to a multimeter.
http://i621.photobucket.com/albums/t...s/IMG_0918.jpg
http://i621.photobucket.com/albums/t...s/IMG_0917.jpg
There do not appear to be any breaks in the solder, but I'm certainly not a mechanic (just love my Volvo to pieces) and this is my first time dealing with relays and/or electrical problems in general so I'm not positive what it would actually look like. I checked out TIPSP's link and I had difficulty differentiating between 'healthy' and broken solders. And adub, yes I've noticed there have been many people with this issue and a sticky should be in order. Thoughts please....
EDIT: Furthermore, is it possible to test the continuity of the relay itself? I have access to a multimeter.
Last edited by Fresheadies; 09-28-2009 at 11:46 AM.
#7
#8
How would I go about jumping the relay board? And by pump, do you mean, OD? I apologize for any basic questions, but I'm a real greenhorn when it comes to things like this. I appreciate the response.
I would replace the relay but unfortunately the cheapest one I can find is around $40.00-$50.00, which would be cheap enough but I'm in between jobs and dirt poor right now. I'm aware that this could also be a solenoid issue or worst case scenario a tranny problem in which case I'll need all the cash I can muster.
I would replace the relay but unfortunately the cheapest one I can find is around $40.00-$50.00, which would be cheap enough but I'm in between jobs and dirt poor right now. I'm aware that this could also be a solenoid issue or worst case scenario a tranny problem in which case I'll need all the cash I can muster.
#9
#10
How would I go about jumping the relay board? And by pump, do you mean, OD? I apologize for any basic questions, but I'm a real greenhorn when it comes to things like this. I appreciate the response.
I would replace the relay but unfortunately the cheapest one I can find is around $40.00-$50.00, which would be cheap enough but I'm in between jobs and dirt poor right now. I'm aware that this could also be a solenoid issue or worst case scenario a tranny problem in which case I'll need all the cash I can muster.
I would replace the relay but unfortunately the cheapest one I can find is around $40.00-$50.00, which would be cheap enough but I'm in between jobs and dirt poor right now. I'm aware that this could also be a solenoid issue or worst case scenario a tranny problem in which case I'll need all the cash I can muster.
#11
#12
#14
#16
OK, I see. I take it I'm going to have to remove the fuse and relay housing to be able to get to the connector? If that's the case, a link or brief instructions would be extremely helpful. I realize a Haynes or a Chilton's would be invaluable at this point. As I'm a fan of DIY, especially on my brick, I used to own one but it was stolen. I'm ordering one online soon.
#17
So with every thing connected, relay installed, fuse in, key on - insert your volt meter probe into the back of the connector and measure the voltage on the wires that are connected to terminals 15 and 87. I know the wire colors on the 240, not the 940. You are seeing if power is coming into the relay and leaving it. And if the button turns this power on and off.
#18
#19
http://www.fcpgroton.com/product-exe...ategory_id/171
#20
Thanks for the heads up on the OD relay. When I tested for continuity I checked the solder joints and it appears as if a few may be cracked. I'm unaware if this is due to my running the current through the relay or if I just didn't pick up on it before. I'm tempted to believe the former but regardless I'm going to get some soldering done this evening, test it using your method bubba, and will report back asap. You guys have been great so far, I appreciate it.