Engine Cooling problem
1987 Toyota Pickup 4 cyl Four Wheel Drive Manual 150K miles
I have found low coolant level in my radiator. Apparently it has gone into the radiator expansion/overflow reservoir.
What is the problem?
Originally I had problems with erratic coolant temps (as displayed on instrument panel). Replaced coolant temp sensor.
Dealer supplied part was not exact, but I installed it.
Temps continued to be questionable: ie. temp reads "normal" upon starting a cold engine.
Temp displayed in red zone on guage after a week or so. Found coolant level low. No leaks found; however unable to pressure test system.
Refilled radiator several times. After 20+ miles of driving, coolant level would be low.
This last cycle coolant in radiator is low and there is NOW an excess of coolant in the overflow/expansion reservoir.
Any suggestions?
1987 Toyota Pickup 4 cyl Four Wheel Drive Manual 150K miles
I have found low coolant level in my radiator. Apparently it has gone into the radiator expansion/overflow reservoir.
What is the problem?
Originally I had problems with erratic coolant temps (as displayed on instrument panel). Replaced coolant temp sensor.
Dealer supplied part was not exact, but I installed it.
Temps continued to be questionable: ie. temp reads "normal" upon starting a cold engine.
Temp displayed in red zone on guage after a week or so. Found coolant level low. No leaks found; however unable to pressure test system.
Refilled radiator several times. After 20+ miles of driving, coolant level would be low.
This last cycle coolant in radiator is low and there is NOW an excess of coolant in the overflow/expansion reservoir.
Any suggestions?
Dec 21, 2009 at 2:41 PM
