I recently bought a 96 Ford Ranger from my BIL, the little truck has 145k on it but runs and drives great. Only thing that really bothers me on this truck is it never seems to bring the engine temp up, gauge will move a tad when running down the road but never into the "normal operating" range. I, of course, thought it must have a stuck open thermostat so this is what I've done so far...checked coolant level, that was fine, replaced thermostat with the recommended 192 degree "failsafe" unit, replaced temp sensor in thermostat housing and checked the fan clutch for leakage...it looked fine. I got it all back together and started her up, got the air out of system, ran it for 20 minutes in my heated shop with no change in low engine temp. I still wasn't sure about the fan clutch so I removed the fan blade and ran truck for about 15 minutes in the shop, the temp did move up a bit but even then it didn't reach operating temp. A little more info...top radiator hose gets warm/hot but not 192 degrees hot, heater puts out warm air but not hot air. I have searched the interweb and noticed this to be a common problem but have not found a solution so far. Anyone had this issue??? Anyone have any suggestion on what to try next??
Thanks Dan
Thanks Dan