NO HEAT!!!

20

Asked by Oct 29, 2017 at 02:28 PM about the 2006 Chevrolet Cobalt

Question type: Maintenance & Repair

2006 Chevy Cobalt heater not working.  Blower works, only cold air coming out.  
No noises present, etc.  Thermostat was replaced and still NO HOT AIR!!!  
HELP, I AM DESPERATE.  The air-conditioning works if that helps any??

9 Answers

2,755

Make sure you coolant is topped up, if it is it could be the blend door actuator or the linkage attached to it that's the problem

35

I am saying blend door look on you tube to see if it can be reset

80

A broken Temperature Actuator shaft (Temperature Blend Door) could cause you to have NO HEAT.

2 people found this helpful.
80

Here’s how I fixed it... (on driver’s right leg kick panel). I used a two-part epoxy and a 1/2” aluminum (or copper) 40mm length of tubing with the broken shaft epoxied together and the metal tube should affect a long-term repair.

1 people found this helpful.
80

A little clearance on the blend doors cam actuator might be required to allow clearance for the slight additional thickness due to the metal sleeping.

1 people found this helpful.
80

Completed repair...

1 people found this helpful.
80

Side note: to make it easy to reinstall the white plastic cam actuator, turn car on and put fan on high. It will put the blend door levers in the correct position to install the cam actuator. Install mode control actuator (top position) on first to hold Assy together while installing remaining bracket and actuator screws.

1 people found this helpful.
80

Bend door levers (controlled via (HVAC mode control switch & Heat switch) on center console.

1 people found this helpful.
80

Blend door levers

1 people found this helpful.

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