No TCC lockup at high altitude | Ford Explorer - Ford Ranger Forums - Serious Explorations

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No TCC lockup at high altitude


June 16, 2005
Reaction score
City, State
Phoeniz, Az
Year, Model & Trim Level
'92 XLT
Just return from a 500 mi. trip that took me over 8000' in elev. I lost TCC lock up above appox. 5700'. Tranny would not lockup even on level road when the engine was loafing. I can only relate it to the altitude. I am thinking MAF or air temp sensors are causing this. Any ideas? (92' Explorer 4x4)