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GranSuburban · 05-01-2021, 04:59 AM

I recently got my TH400 rebuilt and the transmission temp gauge never gets much above 125 degrees on cool days. I've read that it should be closer to 160-180 to operate properly. What could be the cause of these low temperatures?

05-01-2021, 04:59 AM	#1
GranSuburban Registered User Join Date: Jul 2019 Location: Waterford Posts: 4	TH400 operating temperature I recently got my TH400 rebuilt and the transmission temp gauge never gets much above 125 degrees on cool days. I've read that it should be closer to 160-180 to operate properly. What could be the cause of these low temperatures?