SPONSORED LINKS

Heater blows likewarm air at idle, When I accelerate the air gets hotter back to idle it gets cooler

Tiny
MICXIE
  • MEMBER
  • 2002 CHEVROLET SUBURBAN
  • 145,000 MILES
Checked the heater hoses [Both are hot]
fan does not go into high speed
Temperture gage takes a while to go to operating Temp. Falls down a little at idle.
Saturday, February 11th, 2012 AT 6:11 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the air blend door/actuator-could also be the water pump impeller
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, February 11th, 2012 AT 6:14 PM
Tiny
MICXIE
  • MEMBER
  • 14 POSTS
Thanks for the comeback Rasmataz, If it was the water pump impeller would'nt it overheat at idle? How do I check the air blend door/actuator? It dose'nt overheat at idle. Could it be the thermestat? Im only guessing.
Was this
answer
helpful?
Yes
No
Saturday, February 11th, 2012 AT 7:28 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Start by checking the thermostat
Was this
answer
helpful?
Yes
No
Saturday, February 11th, 2012 AT 10:49 PM
Tiny
MICXIE
  • MEMBER
  • 14 POSTS
Thanks again Rasmataz Soon as the weather warms a bit Ill change the thermostat.
Was this
answer
helpful?
Yes
No
Sunday, February 12th, 2012 AT 9:35 AM

Please login or register to post a reply.

Related Idle Air Control Content

Idle Air Control Clean
VIDEO
Idle Air Control Clean
Instructional repair video
Idle Air Control Valve Service
GUIDE
Idle Air Control Valve Service
The idle air control valve is responsible for controlling the engine idle speed via the car's PCM (computer). These valves are configured differently depending on...
VIEW MORE

Sponsored links