1988 760GLE Transmission inquiry

Post by **billofdurham** » 09 Sep 2008, 12:24

I thought you were doing your own services but it is easier to let a garage do it. Of course there are a couple of reasons for not letting a garage do it - cost and does the garage do a good job.

Bill.

DeRail · Post by **DeRail** » 09 Sep 2008, 16:45

Usually I try to do my own maintenance, but I've found, with oil changes at least that it's easier where they have a lift, and I can hand them the OEM filter and have them take care of it. I will have to inquire about a price to do the above work at the next service.

Thanks

DeRail · Post by **DeRail** » 02 Oct 2008, 23:07

Small update:

Will be doing a coolant flush, new thermostat job (and replacing grey cap with green cap on the expansion tank) this weekend. With regards to my original post about the noise coming from the front end, it seems to be coming from the right side, and lately the car has been pulling to the right. My first inclination is to get the front end aligned, but I'm wondering if there's anything I should check on that side this weekend while I have it up on stands anyway.

thanks
Darrell

Post by **billofdurham** » 04 Oct 2008, 12:00

Check the brakes generally but especially for a sticking caliper.

Bill.

DeRail · Post by **DeRail** » 24 Nov 2008, 21:29

Just wanted to give an update

A few weeks ago, I fitted new brake pads, drives like a new car

This past weekend I did a transmission drain and fill and plan to do a flush per the FAQ in 500 miles and add some Lubegard Red. My question is: the FAQ says to disconnect the upper line on the radiator, but I noticed that my 760 has a transmission cooler also, so will the procedure work using that top connection?

Also, I checked for sticky caliper, looked okay... the right wheel pulsates even if the brake is not applied. When it was jacked up, I gave the tire a jiggle at 3oclock & 9 oclock and 12 oclock & 6 oclock and both ways it seemed pretty tight. Someone mentioned it could be a wheel bearing, what are the symptoms of this?

Thanks
Darrell

Post by **billofdurham** » 25 Nov 2008, 11:57

I did a transmission drain and fill and plan to do a flush per the FAQ in 500 miles

I am not happy about flushing either an engine or a gearbox when it has achieved high mileage. This is something that usually causes controversy but flushing can remove deposits which are not harmful in themselves but which help to stop worn parts deteriorating further.

There is nothing in the Volvo service schedule about flushing the auto box, only drain and refill.

disconnect the upper line on the radiator, but I noticed that my 760 has a transmission cooler also

If you do carry on with the flush I am wondering if you have misread about the radiator. Some people call the oil cooler a radiator. It is the line on the oil cooler that needs to be disconnected.

The symptoms of a worn wheel bearing range from noise to a noticeable wobble in the steering. The quick check is what you have already done - grasp the wheel at 12 and 6 o'clock and push and pull.

Can you explain more about the "wheel pulsates"?

Bill.

DeRail · Post by **DeRail** » 25 Nov 2008, 12:37

Hi Bill, cheers for quick response..

I was under the impression that a cooler line flush (ie dump 2 quarts out via the tranny line and refill until clean -- not a power flush) was part of the service schedule. Sorry about the misunderstanding.

That is fine with me, I'll happily live with just doing the drain/refill every 20k, as long as the fluid gets refreshed... Also, would you recommend any additive for heat/wear protection? Some have mentioned this product: http://www.lubegard.com/automotive/trans_atf.html Their site says it is recommended by Volvo, among other companies, but I'm not sure the validity of it

As far as the wheel pulsating, you can feel it throughout the car as well as the steering wheel slightly shaking. This happens at any speed, but more pronounced at lower speeds since the vibration is more drawn out. Probably not a good explanation, let me know if it needs more elaboration.

Thanks,
Darrell

Post by **billofdurham** » 25 Nov 2008, 15:39

As far as I know Volvo do not recommend any additives for transmission nor engine.

However, I am a great believer in adding something to both when the miles are getting high. That would appear to be suitable.

The pulsating wheel could be a wheel bearing starting to go but I would have thought it would show by the pull/push of the wheel. Have you checked the other parts of the steering on that side?

Bill.

DeRail · Post by **DeRail** » 25 Nov 2008, 17:12

Again, thank you for the prompt assistance

As you can probably tell, I'm a newbie with a wrench but trying to learn

. When I had the tire off, I looked and poked around under there at the steering components and it didn't seem like there was play in any of them.

As for the trans additive, should I add this ASAP since I didn't put it in when I drained it two days ago? Seems to be shifting smooth as ever, and I just want to keep it that way.

Thanks

Darrell

Post by **billofdurham** » 26 Nov 2008, 12:06

As for the trans additive, should I add this ASAP since I didn't put it in when I drained it two days ago?

If you do you will need to drain the equivalent amount of fluid from the box to avoid overfilling. If you still intend doing another drain/refill or a flush in the near future wait until then.

A possibility for the pulsating wheel is that it is slightly buckled. Try putting the spare on that wheel and see if it clears. If it makes no difference I would suggest a trip to a tyre house and have them check the steering. You don't need to have any work done.

Bill.