Having problems with your 2004 GMC Sierra ?

2005 gmc siearra blows cold air

\015 Temp on gauge reads 200, both heater hoses hot,is somthing under the dash not working like a door not opening\015 Posted / edited by AnonymousUser on : 21-01-2019

Answers :

Sound like blend doors are not working there is a motor under dash or vacuum line under dash ant working they should be color coded red yellow black i think need more let me know
Repair Help & Product Troubleshooting for 2004 GMC Sierra

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