Anyone else notice different gear changes at different temps?

[MkUrMark]

I notice an odd behavior when temperatures spiked in to triple digits this last few days ago... it may not have to do with the heat but thats my only connection I can correlate this with.

Usual driving patterns while on D, gears shift up between 1800-2000 rpm range. I notice during the really high temps 102º+ gears shifted up between 2200-2800 rpm range with no change in throttle input. As temps went down through the day (<100º) gears changes returned back to the normal pattern.

I had no codes or anything else, I was thinking it may have something to do with turbos working harder because of the heat soak but not sure if that would make sense.

This is my first automatic transmission in years not sure if this is normal behavior in general with automatics. I wouldn't think its worthy of dealer visit, car operated normal other then that.

[markn1689]

normal. when temps get high the car wants to keep the revs higher. it does this to keep the engine fan moving faster which helps regulate temps better

[MkUrMark]

figured thanks man

[eXhilarat3d]

It's hitting ~110 deg in Vegas and my car will hold a gear to 3k. I thought there was something different going on since there was a lot more sound coming from the engine and exhaust lately. My car is exhibiting the same behavior. Car is completely stock except for springs and wheels spacers.

[chris164935]

normal. when temps get high the car wants to keep the revs higher. it does this to keep the engine fan moving faster which helps regulate temps better

Lol. Belt-driven fan in a transverse engine bay?

[Lusky]

It's hitting ~110 deg in Vegas and my car will hold a gear to 3k. I thought there was something different going on since there was a lot more sound coming from the engine and exhaust lately. My car is exhibiting the same behavior. Car is completely stock except for springs and wheels spacers.

Hi! Did you flash your lights to me Thursday evening when you were turning into the Chevron on Windmill/215?

[will13k7]

I read somewhere it's trying to make the same requested amount of power and it needs to rev higher when it's hot outside to do so.

[MkUrMark]

@ chris164935- haha true that...

[eXhilarat3d]

Hi! Did you flash your lights to me Thursday evening when you were turning into the Chevron on Windmill/215?

No, that wasn't me. I'm rarely out that way....

[saxon]

Lol. Belt-driven fan in a transverse engine bay?

i giggled at that response as well