Lifetime Supporting Member
Join Date: Dec 2009
Feedback Score: 0 reviews
I have my transmission temperature sensor in the same port you are using. I see about 40-60 degrees over ambient. For me, that means my transmission is running around 100° since we are in the worst part of winter now. I used to monitor engine oil temp, but found the numbers were always right on with what the EOT sensor in the HPOP was reporting to the PCM, so I changed that to engine oil pressure. When I was monitoring temp, it was always within 5 degrees of ECT once the engine warmed up. For me, that was 180° - measured at the port next to the oil filter.
I would contact your gauge manufacturer - something is seriously wrong either with your installation or your gauges.
2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM