temp gauges

[SIRed]

I have a couple of questions regarding my temp gauges. First is my engine temp, after warm up no matter how long I have been driving the temp gauge doensn't seem to go up very high. The needle only moves about quarter way up. Is this the norm? Also question 2. I have an aftermarket trans temp gauge on my truck which was installed by the previous owner. The probe for it is on the side of the tranny where I believe it should be. Problem is, even though it has been cold here the gauge does not move at all but as soon as I put my 16ft flatbed trailer on it it goes to 140 degrees. What I am trying to figure out is if this is getting to proper reading. Because if it is I will probably need to upgrade the tranny cooler for the summer when pulling my travel trailer.

[PolarBear]

I would say that all of that is normal. Unless there is a problem or you just want to, you don't need to upgrade your tranny cooler. These truck were made to handle heavy loads. Yes they can be up graded but probably the majority of the trucks will never see an upgraded cooler. Our 02 used to pull a 37 ft. 17,000lb 5th wheel toy hauler on a weekly basis and never once overheated the tranny.

[SIRed]

Well the reason I ask was because a month or so ago when the outside temp was around 45 or so I had to p/u my camper after having some work done to it. By the time I made it back home the tranny gauge was reading 160 or 170. I know thats not bad but it makes me wonder what it will read when its 90plus outside.

[SIRed]

TTT...PB or anyone else on ^