How to replace the water pump in a GMC?
Drain cooling system by removing radiator drain plug which is directly below CAC tube on passenger side. Use a 90* elbow of some sort to channel it into a clean pail, then remove overflow bottle cap to speed things up. 9. Disconnect batterys using 8mm wrench (just for extra safety)
How long does it take to replace a water pump?
About 4 hours from start to finish, with a few extra hands. Fan nut came off easily, and with a huge 4 foot long 600 ft/lb Tq wrench, it was easy to get the Balancer nut off and Torqued back on. I bought the Lisle holding tool for the flywheel.
How can I Keep my Duramax Diesel pump healthy?
However, there are measures you can take to keep the pump happy and healthy, the first being to always buy your diesel from a high-traffic, reputable filling station that’s known to dispense good, clean fuel. Second, always change the fuel filter at or before the recommended service interval.
What kind of pump does a Duramax cp4.2 use?
Like all Duramax engines from ’01-’10, the LML was also void of a lift pump from the factory. This means that not only does the CP4.2 have to pressurize fuel as high as 29,000 psi before sending it to the rails, but it also has to pull its low pressure fuel from the tank.
When does a Duramax Diesel water pump need to be replaced?
It is not unlikely that a water pump will need to be replaced in the 80,000 – 100,000 mile range. This seems to be inherent of the factory water pump design. Overheating issues with the Duramax diesel seems to be a hit-or-miss problem; some owners experience it, while others never will.
Drain cooling system by removing radiator drain plug which is directly below CAC tube on passenger side. Use a 90* elbow of some sort to channel it into a clean pail, then remove overflow bottle cap to speed things up. 9. Disconnect batterys using 8mm wrench (just for extra safety)
Why does my Duramax water pump keep overheating?
This seems to be inherent of the factory water pump design. Overheating. Overheating issues with the Duramax diesel seems to be a hit-or-miss problem; some owners experience it, while others never will. Regardless, it’s more common with the Duramax than other engines.
Are there any problems with the Duramax fuel filter?
The 2001 to 2004 LB7 fuel filter housings seem to be the most prone to problems. Water Pump Failure. Water pump failures for Duramax engine are somewhat common. It is not unlikely that a water pump will need to be replaced in the 80,000 – 100,000 mile range.