Background: MegaViper with external filter, extra in-line cooler, 2600 stall converter. Temperature gauge installed and probe installed on the trans cooling line. Check valve has been deleted. About 10,000 miles on the transmission.

Temperature has never gotten above 180 degrees. This morning, driving with OD off and running at about 2000 rpm in heavy rain temp gauge indicated 140 degrees consistently.

After hitting a couple of rather large puddles, the transmission temperature light came on. I quickly checked the gauge and it was still sitting around 140 degrees. There were no signs of slipping, no smells, etc.

After about a minute the light went off, then a few minutes later came back on, then off and then on, then off. I reached my destination. truck sat for about 10 minutes turned off. I then started her up, no light, temp gauge around 120, and continued on. No more warning lights.

I'll check levels tonight before I leave, but I'm wondering if I have the probe installed in the right place and if maybe it was just a bit of moisture that got into the connector.

Thoughts?

 

Temp sensor for the PCM is part of the pressure transducer. (sensor) Wonder if the sensor is freaking out, and the hitting the puddle was just a coinkydink.

 

That's possible. I'll do a search on testing the transducer and add that to my list.

Thanks!

 

Probably the best thing you can do is plug a scanner into it, that will display trans temp.... and see how stable the readings are.

 

I'll have to find someone with a scanner. the ODB2 reader I have doesn't pick up that info. The snapon 2500 does, doesn't it?

 

What temp is the trans temp light supposed to come on at?

 

260F. Your fluid is compromised by then.

 

I do believe so.

 

Going through my threads and just realized I didn't post the fix on this. Ends up that using dielectric grease in the transmission connectors is a definite must! Water was splashing up and shorting things out causing the temp light to come on. Last time it happened I pulled the connectors and found moisture. Dried everything out, liberally applied the grease and no more problems! Woot!

 

how do u like that mega viper. im trying to justify it once my 2nd stocker dies