Transmission Temp range / limits (1 Viewer)

[BoiseFJ]

Any opinions on what would be considered normal operating temperatures for a 100 series Landcruiser Toyota automatic transmission? Looking for upper limits. I hit 215 for less than a minute the other day while motoring up a dirt trail, it was about 100 outside and I was pulling my off road trailer. Once I shifted into 4 low the temp came right down. Didn't think it was really that steep. I have a ScanGauge so that was how I knew what the exact temp it got up to was.

Thanks

 

[ramangain]

I know 22x towing up steep grades will not cause permanent damage on the 4spd

 

[twosmoker]

Mine hit 215 in traffic once, replaced the fan clutch and now I rarely break a 200. Normal driving temps tend to be around 130-160 for me. Going up hill will put it in the 180-190 range and on some tough hills with a loaded car I will break 200 for a minute.

I find it helps to use the PWR button with overdrive off or manually use the 2,L when going up hills.

 

[flintknapper]

Different transmissions will hold up differently......but this is probably pretty accurate with respect to how most ATF's will act.

I think in the case of the A343F.....230°F (ish) should start to have you concerned and taking action to reduce temps.

 

[BoiseFJ]

Different transmissions will hold up differently......but this is probably pretty accurate with respect to how most ATF's will act.

I think in the case of the A343F.....230°F (ish) should start to have you concerned and taking action to reduce temps.



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Thanks, this is very informative.