Coolant System Issues

Question 1

Issue with caps

-leaking and losing coolant.

Answer 1

The black caps on the DD13 engines are defective and PSI is incorrect

Currently being replaced

Question 2

New coolant is difficult to see in the sight glass

-this is causing overfilling

Answer 2

Coolant is being upgraded to a darker color.

Question 3

Debris clogging the radiators

Answer 3

1. Put truck in pump gear
2. Flow redline on fog with approximately 1000 RPM’s
3. Flush approximately 10 minutes or until clean.