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Tranny Flush??

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Old 12-05-2004, 02:35 PM
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Originally Posted by Rogue
If it were me, I would do just trans fluid. Addatives will "clean" out the debris (mostly old clutch material) and if its plugging you could develop leaks. Cleaner fluid will be higher pressure so it may blow out old seals as well. With high milage cars its recommend to just do filter and refil. If you do a flush you could develop trans issues within days or weeks.
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Old 12-17-2004, 10:01 PM
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Well I went in today and got the tranny filter and fluid changed only. They did also add a conditioner to help the seals and stuff.

I did not get a flush done. However they just got a new tranny flush machine and it is still in the shrink wrap..Sometime after x-mas they are going to get a couple cars to be able to show all the people that work there how to do a tranny flush so they asked if they could use my car as one of the "test" cars. LOL.


I am not positive but it may be a freebie for me, LOL.


I drove the car after the new filter and fluid and it still felt the same. So we will be keeping an eye on how it is running and if it starts to slip at all or not. The magnet that is located inside the pan DID have a fair bit of clutch plate material on it, but hey it is 14 years old and has over 190,000 kms on it so that is to be expected.

Maybe this can be moved to the 87-91 section?
Old 12-17-2004, 11:45 PM
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I flushed my tranny at 130,000 miles. I had absolutely no problems afterwards. You gotta think. If there is crap in the tranny, you really should get it out. If there is a lot, it would probably grenade soon enough anyway. When you got fluid that old, the friction modifiers wear out and the clutches don't slip and grip like they should. No slippy stuff=more clutch wear.
Old 12-18-2004, 10:45 AM
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If your fluid was brown consider a tranny cooler. Both my cars stay cherry red and shift like a dream except an occasional around the corner thing on my 90.
No big deal though.
Old 12-18-2004, 11:40 PM
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Well I have no idea the last time the fluid was changed either. It could have been sitting there for years, who knows. It was changed at least once since the gasket did not appear stock according the the mechanic changing the fluid.


I don't think I need a tranny cooler up here on the Bonne. I am not towing anything with it and we don't get summers that are that bad, and it is not really used for long trips. I mean the hottest I have ever seen it get up here is maybe 100F ( 38C) and that is for a day maybe 2. We range up here from +40C to -40C. I will be keeping an eye on the tranny fluid anyhow. It will get driven for a few weeks then get that tranny flush done. I know I should probably change the filter again but it would have only been in for a couple weeks. They did say that the lines going to and from the cooler and in great shape and easy access so it will be easy to do the flush on my car when it is used as a test subject.

I will decide come summer if I want to install the additional cooler or not, the 2003 Malibu will be getting one ( a bit late though already have 110,000 kms on it, LOL) but I do plan on towing a trailer with my go-kart in it to and from the race track. Plus all that mileage I drive. I am thinking of getting a tranny temp gauge shortly so I can see what temp I run at all winter and spring time before I install the cooler.
Old 12-18-2004, 11:51 PM
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ever hear of a "T-tech"?
Old 12-19-2004, 08:54 PM
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That'* what we use at school. Super simple.
Old 12-19-2004, 11:54 PM
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100F ? Last summer it never got over 94F. Of course that is for two months...
Old 12-20-2004, 08:08 PM
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Default cooler

Its true the colder the outside climate the better the cooling system will work but these
Bonne trannys tend to run hot anyway.
Old 12-20-2004, 10:39 PM
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You may want to add a cooler anyways. Wouldn't it be a novel idea to incorporate a thermostat into the tranny cooler.. so only once the temps reach x temps, it is just re-routed to the tranny, skipping the cooler. You would probably want to drill the thermostat.. just to be careful. I know when I drop the cash for a cooler, I will incorporate something like this.


-justin


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