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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 2108
Experience:  Owner at DJ Wilson
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2000 C 12 in Kenworth is not running right. Driver says that

Customer Question

2000 C 12 in Kenworth is not running right. Driver says that coolant was low and he put 1 gallon in and after that truck ran fine.
Now however it runs crappy again
Submitted: 2 years ago.
Category: Medium and Heavy Trucks
Customer: replied 2 years ago.
Answer in one day is not good enough.
Customer: replied 2 years ago.
Does the engine derate because of low coolant? remember that it is a 2000 C 12 in a Kenworth truck. My 2003 C 15 does not derate when low on coolant.
Expert:  Cat Man replied 2 years ago.
Hi. Thanks for asking your question and requesting me. Sorry for the delay. I will try and help you out.
Does the yellow or red engine warning light come on while driving?
When you say crappy. Do you mean it has low power? Or does it miss or run rough?