Question about 2006 Chevrolet Suburban
When I am idoling the heat goes cold. When I accelerate it warms up.
Does it ever overheat? (waterpump or thermostat)
Possible clog in heater core or pinched heater hose under hood.
If coolant/water is at proper level, and you don't over heat, the later will most likely be the issue.
Heater core is small radiator deep inside under the front passenger dash and is rather hard to access.
If you smell something like coolant inside, this is for sure the issue.
Hope this helps.
Posted on Dec 10, 2012
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Posted on Jan 02, 2017
common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost.
Posted on Feb 23, 2009
You need to replace the drivers side temp actuator that is located on the left side of the HVAC box. It is retained by 3 screws and is fairly easy to replace.
Posted on Aug 29, 2009
SOURCE: ac blowing hot air
the blend door actuator located on the air box (right hand side under dash) is prob. inop. worst case senerio the blend door its self is broken. I have replaced the actuator more than anything.
Posted on Sep 16, 2009
hi, there is a published technical service bulletin about this problem for these vehicles and the tahoes. the compressor sitting so low in the system, gets over-run by the liquid freon banging internally and actually locks up on and off during operation. this is the noise you are hearing. apparently there is a screen kit to install in the low side suction line to prevent this from happening, but GM also states the compressor needs to be replaced and the new compressors from GM at least, already have this modification done. So, i replace them when they come into my bay with the complaint you speak of, and the tensioner for the belt, likely the belt too. but it looks like you already know all about that. hope i could help.
Posted on Jun 07, 2010
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