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Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 26763
Experience:  Technician turned service manager on multiple lines of trucks and engines, used in industry.
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I have a 1996 D4 H xl engine 45v91988 7E2301 Model 8PB05555*

Customer Question

I have a 1996 D4 H xl
engine 45v91988 7E2301
Model 8PB05555* 8E3818
Problem- overheating
Already changed thermostat
Tractor will heat up and then the coolant will circulate and blow out the cap vent.
Now its getting to the point it will stop circulating during operation.
Is there anything beside the thermostat that would do this?
can I pull the thermostat out and run the dozer?
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Curtis B. replied 1 year ago.

Yes, you can run without the thermostat. If you see no flow with thermostat out, the water pump may have broken.

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