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Most likely the thermostat spring is weak, or the thermostat is sticking, causing the thermostat to open too early and stay open too long. This will cause water to circulate to the radiator, causing the temperature of the cooling water to fall below the target temperature, and so the temp guage falls. then eventually the thermostat closes some, and the temp starts to rise again (and so on)
What else can I help you with?
Is a running river a living thing?
No. Just because something moves does not mean it is living.
What does it mean when the engine temperature light comes on?
The enigine is running too hot...
What does it mean when your temperature gag moves up and down?
There will soon be a violent emission of hot fluids.
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Either : The engine coolant temperature is HIGH The engine oil pressure is LOW Or the fuel gauge is at or near EMPTY
When does the check gauge light come on in a 2006 ford expedition?
According to the 2006 Ford Expedition Owner Guide : The " CHECK GAGE " light comes on if the engine coolant temperature is HIGH or the engine oil pressure is LOW
What does it mean when the check gage light comes on a 2001 ford ranger?
Either your engine coolant temperature is HIGH , your oil pressure is LOW , or your gas tank is at or near empty
What does the temperature light on a vw beetle mean?
If it is for the older air cooled engines, it means you are running hot and running hot means no oil.
What does it mean when the nurse tells you your body temperature is 40 degrees celsius?
You're running a fever.
What does it mean when there is a strong burning odor when you turn off the car?
my car over heat but the fan is runing and the and the temperature gage doesn't go hot until am going up a hill
What does the indicator light on a 1994 Saturn SC2 with a low tank arrow pointing down and a temperature gage mean?
The light you are describing indicates low coolant level in the coolant reservoir.
What are the notes for keyboard songs?
Silent Night is: GAGE GAGE DDBCCG ACCBAGAGE X2 DDFDBCE CGEGFDC
What does the name Gage mean?
Gage is a masculine name of Middle English origin, meaning 'Measure'.It originally denoted one who was an assayer.It's pronunciation is the same as that of the word 'Gauge'.The name Gage means pledge or oath.
