trans temp

[rpm1]

I was driving home today, did a quick scan of the gauges, and noticed the trans temp at 180. It was snowing hard and driving about 40 in a slush for quite a while.

The gauge has never been this high, even driving it hard in 100 degree weather.

I did not crawl under the van yet to look at anything, but I am thinking maybe the sender is going bad? When I noticed it at 180, it then went up and down quite a bit (within 20 secs) before settling back in it's normal position at not too far over 100.

I don't think the trans fluid could change temp that fast?? Especially just cruising at low speed?

[Yardbrew2]

Suspect a problem with the tranny temp gauge. Check connections and ground. I assume you have the probe in that inspection port on the driver's side of the transmission. Make sure that the electrical connection is good.
I feel like that is the weakest link in the entire transmission temp setup. I remember having to make sure it was threaded fairly snug to get a good contact. However, don't get on it too hard or it will bottom out and ruin it.

Tranny temp should operate about 100 degrees above ambient temp. Must admit that much of the time mine is not that warm. In the summer time in Texas pulling my trailer it will flat get hot if I don't keep air coming through it. As you know the automatic fan motor kicks in when it gets too hot. I never could figure if it was a combination of tranny temp and ambient temp or just tranny temp about 210-215 (where mine kicks in).

Yardbrew

[rpm1]

Originally Posted by Yardbrew2

Suspect a problem with the tranny temp gauge. Check connections and ground. I assume you have the probe in that inspection port on the driver's side of the transmission. Make sure that the electrical connection is good.
I feel like that is the weakest link in the entire transmission temp setup. I remember having to make sure it was threaded fairly snug to get a good contact. However, don't get on it too hard or it will bottom out and ruin it.

Tranny temp should operate about 100 degrees above ambient temp. Must admit that much of the time mine is not that warm. In the summer time in Texas pulling my trailer it will flat get hot if I don't keep air coming through it. As you know the automatic fan motor kicks in when it gets too hot. I never could figure if it was a combination of tranny temp and ambient temp or just tranny temp about 210-215 (where mine kicks in).

Yardbrew

Thanks. Yes, the sender is in the port you are referring to. I still haven't crawled under there, the gauge has been behaving.

[clev]

QUOTE:
It was snowing hard and driving about 40 in a slush for quite a while.
UNQUOTE

This post was 21 March; in San Marcos, TX on that day, it was low 80's. A quick cure would be to move south! LOL, just kidding.

[rpm1]

Originally Posted by clev

QUOTE:
It was snowing hard and driving about 40 in a slush for quite a while.
UNQUOTE

This post was 21 March; in San Marcos, TX on that day, it was low 80's. A quick cure would be to move south! LOL, just kidding.

If I ever relocate, it will be somewhere warm year round!