mjf84
Junior Member
Stumped on this one. When I first start my truck every day (when it is still cold outside), within 2 minutes I will get:
-Throttle Control light (lightning bolt), -Serv 4WD light
-temp gauge stays all the way cold
-coolant temp reads as <100
All of these stay that way for the entire drive unless I shut down and start again. If I start again, none of these problems come up. It’s only when I start it from fully cold.
CEL is on 24/7 and throwing a P2181 (vague “incorrect temperature”). Coolant level is slowly dropping but I can’t find a major leak anywhere. Water pump, thermostat, radiator hoses are all new within the last year.
Any ideas on what could be up? This one has me stumped.
2012 1500 4.7L 125,000miles
-Throttle Control light (lightning bolt), -Serv 4WD light
-temp gauge stays all the way cold
-coolant temp reads as <100
All of these stay that way for the entire drive unless I shut down and start again. If I start again, none of these problems come up. It’s only when I start it from fully cold.
CEL is on 24/7 and throwing a P2181 (vague “incorrect temperature”). Coolant level is slowly dropping but I can’t find a major leak anywhere. Water pump, thermostat, radiator hoses are all new within the last year.
Any ideas on what could be up? This one has me stumped.
2012 1500 4.7L 125,000miles
