0404 Yukon thermostat replacement

2004 GMC YUKON
99,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
BOBLINFORTINO
  • MEMBER
  • 2 POSTS
How do I replace thermostat in a 2004 Yukon SL 4.8 Engine

Thankyou
Jan 24, 2011 at 6:06 AM
Advertisement
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Removal Procedure

Important: The thermostat is not serviceable separately. The thermostat housing (water pump inlet) and thermostat must be replaced as an assembly.
Remove the radiator outlet hose.
Remove the water pump inlet bolts.
Remove the water pump inlet from the water pump.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Jan 24, 2011 at 8:31 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.