trans temp gauge readings??? - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 03-18-2008, 06:32 PM Thread Starter
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trans temp gauge readings???

I just installed my autometer gauges and was wondering the normal reading on a trans temp gauge? The gauge hardly ever gets over 125 degrees which is the first mark on the gauge. I drive about 10 miles to get it up to 125 haven't drove it much more than that but I thought it should be reading more than that. The truck is unloaded but still it is a 02 crew cab 4X4. The stock gauge I know is not to accurate but it will go half way up before the autometer even moves off 100 degrees. Any help on what other ppls gauges read?
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post #2 of 6 Old 03-18-2008, 07:17 PM
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first the trans guage on the dash will give you a false reading because it is mounted on the supply......where the hot oil exits the tranny this is why it moves faster

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post #3 of 6 Old 03-18-2008, 08:05 PM
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This all sounds pretty normal. I have a Isspro trans gauge and it takes awhile for the temp to come up over the 100 mark, the dash gauge will already be showing in the normal range when the isspro come off 100. Mine runs around 130 after it's good and warmed up so your temps are just fine. Try driving around town and let the trans go through the gears a lot, that will warm it up quick because the torque converter will be slipping more, that will give you an indication of how the gauge reacts to the trans getting hotter.

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post #4 of 6 Old 03-18-2008, 08:50 PM
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During this weather, that is normal if you have the sensor grabbing the temp from the driver side service port.

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post #5 of 6 Old 03-19-2008, 02:22 AM
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The "normal" range is 70-90 above ambient, so if temps where you at are in the 30's - 50's this is about right. The lower side (70) for unloaded conditions and the upper (90) when towing heavy. Ford doesn't consider anything under 230 abnormal, but my rule anything sustained over 200 needs more cooling. Remember you are heating up close to 5 gal's of ATF, this isn't going to happen in a 5 mile trip. It takes mine about 20 min before it is all warmed up. I always recommend gauges that start at 100, but 125 is just fine. With a real gauge you will now see why the factory unit is such a piece of garbage.
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post #6 of 6 Old 04-08-2008, 08:05 PM
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Quote:
Originally Posted by NCHornet View Post
The "normal" range is 70-90 above ambient, so if temps where you at are in the 30's - 50's this is about right. The lower side (70) for unloaded conditions and the upper (90) when towing heavy. Ford doesn't consider anything under 230 abnormal, but my rule anything sustained over 200 needs more cooling. Remember you are heating up close to 5 gal's of ATF, this isn't going to happen in a 5 mile trip. It takes mine about 20 min before it is all warmed up. I always recommend gauges that start at 100, but 125 is just fine. With a real gauge you will now see why the factory unit is such a piece of garbage.
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I too was worried about my trans temp as I was/am considering installing an add on trans cooler for my 2000X, but my readings (on newly installed full sweep autometer trans temp gauge) here in Central Oregon have been not higher then 125 and that is after going up some decent hills and such, but the temps have also been from 10-50 so what you are saying lets me know the guage is working and I am just running nice and cool.

We will see what it reads when I get down to CA next week?

Thanks......

Strandard Reading of my trans during the winter:
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Last edited by CentralOregon; 04-08-2008 at 08:49 PM.
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