Transmission flush vs drain and fill

[spin05]

Dont flush it unless you can flush it your self. On my dodge ram there is a line i can pull off and do my own flush. On toyota i have no idea

It’s your transmission cooler lines that you disconnect to flush automatic transmissions.  Anything automatic should have cooler lines.

Correct   it works well too

[dog]

Maybe a coincidence but we had our Toyota Camrys trans flushed and the trans went out the next week.

[Gobble Doc]

My Tacoma is at 450K. I did maybe a couple fluid changes. I certainly wasn’t careful with it.  Not sure there is a clear answer here.


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[kramman]

I just put suburban in the shop to have services asked about a tranny flush the mechanic told me to NEVER flush a tranny after 100k. This was the chevy dealership in downtown tacoma

[Sandberm]

My Tacoma is at 450K. I did maybe a couple fluid changes. I certainly wasn’t careful with it.  Not sure there is a clear answer here.


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You have a stock automatic transmission with 450,000 miles on it?

[Gobble Doc]

My Tacoma is at 450K. I did maybe a couple fluid changes. I certainly wasn’t careful with it.  Not sure there is a clear answer here.


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You have a stock automatic transmission with 450,000 miles on it?

Yea stock. 2003. Believe it or not I just heard a clunk so maybe the tranny finally bit it. The engine runs great.


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[spin05]

yes do not flush if possible. My dodge ram has a hose i can do it myself. See if you can find something like that. Just dont do the power flush like the transmission shop or dealer does

[jackelope]

yes do not flush if possible. My dodge ram has a hose i can do it myself. See if you can find something like that. Just dont do the power flush like the transmission shop or dealer does

Why not?

You know the flush is done through the cooler lines, presumably the same "hose" you're using?

[bearpaw]

I just put suburban in the shop to have services asked about a tranny flush the mechanic told me to NEVER flush a tranny after 100k. This was the chevy dealership in downtown tacoma

Did he say why?

[kramman]

I just took him at his word!

[jackelope]

I just put suburban in the shop to have services asked about a tranny flush the mechanic told me to NEVER flush a tranny after 100k. This was the chevy dealership in downtown tacoma

Did he say why?

Most of the time when people say don't flush a transmission, it's because they think it's too aggressive. We do hundreds of them year to year, maybe a thousand, and the only time I have ever seen a problem is when one of my apprentice techs left a pair of hose pinch pliers on a hose. No cooling, therefore the transmission grenaded. That wasn't the fault of the flush though, that was my tech's fault.