Air In Coolant System

[jefffoxsr]

If I just take of the upper radiator hose and replace it will that put unwanted air into the cooling system?

 

I am replacing this hose as a preventive measure against future problems. The truck, 2003 GM yukon has 102,000 miles.

 

Thanks

 

Jeff Fox

[hrspwr]

A bit of air will be in the system. Just make sure that the res. is full and it will pull the coolant back into the system.

[jefffoxsr]

Also how do I find out the part # for gm products? Is there a web site?

 

Thanks.

[teknition]

Drain cooling system. Change hose. Refill cooling system. Leave rad cap off and run engine until upper rad hose gets hot. Top off coolant and install rad cap. Wha-lah.. you are done.

 

 

 

Brad

[txab]

http://www.gm-trucks.com/forums/index.php?...icle&id=394