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Wayne
Wayne, Journeyman
Category: Agriculture and Farm Equipment
Satisfied Customers: 8451
Experience:  34 + years as a mechanic
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Deere 6420 not warming to operating temp changed thermostat

Customer Question

john deere 6420 not warming to operating temp changed thermostat no help
Submitted: 1 year ago.
Category: Agriculture and Farm Equipment
Expert:  Wayne replied 1 year ago.

Hi I'm Wayne

I will help you with this

1st off you need to check that the gauge is not faulty, or sensor

use a thermometer probe, and stick that in the coolant in radiator

you can use Wife meat thermometer (don't let her see it )

now temp will be 10 degree cooler in radiator

other thing is that your clutch fan is always on

when you start it cold, the fan should not be spinning

this is the only 2 things that will cause this

I hope this helped you

Hi if this helped you

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Wayne

Expert:  Wayne replied 1 year ago.

Hi ,

Just following up with you

did my answer help you

Let me know ,Please

Expert:  Wayne replied 1 year ago.

Hi ,

Just following up with you

did my answer help you

Let me know ,Please

Wayne

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