2005 Uplander - Transmission Fluid Replacement
warlock40
07-09-2010, 08:55 AM
Hi Guys a friend has a 2005 uplander.
Transmission Fluid Replacement
I know that the manual says over 50 or so, but
It is sitting at 120,000 right now.. hasn't ever been done.
he had something done at it the other day and they said it should be changed.
Looking for some opinions.. since he has never had any problems whether should or should not.
Also what is the recommended replacement method.
The Green and Ross is recommending a complete empty and flush (using a compressor to blow out the lines)
He's going to do it himself but I wasn't sure if they still recommend all that or a slow exchange.
Any information would be great thanks.
Transmission Fluid Replacement
I know that the manual says over 50 or so, but
It is sitting at 120,000 right now.. hasn't ever been done.
he had something done at it the other day and they said it should be changed.
Looking for some opinions.. since he has never had any problems whether should or should not.
Also what is the recommended replacement method.
The Green and Ross is recommending a complete empty and flush (using a compressor to blow out the lines)
He's going to do it himself but I wasn't sure if they still recommend all that or a slow exchange.
Any information would be great thanks.
spike88
07-13-2010, 03:48 PM
If the vehicle's manual states that its ATF fluid should be replaced every 50,000, it should be replaced every 50,000. If vehicle currently has 120,000, I would replace its ATF ASAP. Why risk way past the recommended defaults when one doesn't have to?
For me, I'm not a fan of "flushing" its old / used ATF out. I'm more of a "gravity drain and replace" type of person. To me, "flushing" over pressurizes the inner chambers "too much". And if any dirt / grime is within the chamber, it gets "driven / pressurized" into tight spots. Thus, I'd simpy gravity drain and replace the used ATF fluid. From a different perspective... Vision laying on one's back, holding one's breath and asking a teenager to jump on your chest. Instant "over pressure" and its inner air / inner fluid is forced into places is shouldn't be allowed. Same inner chamber "over pressure" risk that can happen when "flushing" out an auto transmissions as well... Especially when a rockie tech does the fluid pressurization.
Do check with a transmission Specialist. Many auto transmissions have filters inside them. When replacing ATF, its inner ATF filter must be replaced as well. Only method to replace this inner filter is to "drop its lower pan". For me, I always get my trusted mechanic to change its ATF and inner filter. They deal with the fluid mess and re-installing its lower pan - not me.
Also... My transmission Specialist stats that all GM (Safari, Venture, Uplander / Montana) vans needs an ATF Aux cooler (LPD - "Low Pressure Drop" design) installed. He recommends ATF aux cooler rated for attached 3,500 lbs trailer (or even larger 5,000 lbs trailer) - even if NOT towing / hauling things. He says that ALL GM van's have HOT temp ATF systems and installing an ATF aux cooler makes them run cooler - which makes them last much longer. If wondering, I installed an ATF aux cooler (LPD design) rated for attached 5,000 lbs trailer on my wife Montana van. It works great. re: Hayden 1678 Cooler @ http://www.transmissioncoolers.us/Merchant2/merchant.mvc?Screen=PROD&Product_Code=1678&Category_Code=hayden-transaver-cooler&Product_Count=2
Good luck...
.
For me, I'm not a fan of "flushing" its old / used ATF out. I'm more of a "gravity drain and replace" type of person. To me, "flushing" over pressurizes the inner chambers "too much". And if any dirt / grime is within the chamber, it gets "driven / pressurized" into tight spots. Thus, I'd simpy gravity drain and replace the used ATF fluid. From a different perspective... Vision laying on one's back, holding one's breath and asking a teenager to jump on your chest. Instant "over pressure" and its inner air / inner fluid is forced into places is shouldn't be allowed. Same inner chamber "over pressure" risk that can happen when "flushing" out an auto transmissions as well... Especially when a rockie tech does the fluid pressurization.
Do check with a transmission Specialist. Many auto transmissions have filters inside them. When replacing ATF, its inner ATF filter must be replaced as well. Only method to replace this inner filter is to "drop its lower pan". For me, I always get my trusted mechanic to change its ATF and inner filter. They deal with the fluid mess and re-installing its lower pan - not me.
Also... My transmission Specialist stats that all GM (Safari, Venture, Uplander / Montana) vans needs an ATF Aux cooler (LPD - "Low Pressure Drop" design) installed. He recommends ATF aux cooler rated for attached 3,500 lbs trailer (or even larger 5,000 lbs trailer) - even if NOT towing / hauling things. He says that ALL GM van's have HOT temp ATF systems and installing an ATF aux cooler makes them run cooler - which makes them last much longer. If wondering, I installed an ATF aux cooler (LPD design) rated for attached 5,000 lbs trailer on my wife Montana van. It works great. re: Hayden 1678 Cooler @ http://www.transmissioncoolers.us/Merchant2/merchant.mvc?Screen=PROD&Product_Code=1678&Category_Code=hayden-transaver-cooler&Product_Count=2
Good luck...
.
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