Q&A

2004 Chevrolet Trailblazer

Question: cooling system

Question

radray, 4.2L 6 Cylinder, Reno, NV, June 23, 2011, 20:38

 Rookie

im having some problems with high temp its at 210 is that normal operating,just bought blazer and still learning?

1 Answer

Answer It

Flag This

Follow this Question Unfollow this Question

• Answer #1

  patrick mannion from Greg Solow's Engine Room, June 23, 2011, 21:15
  

   Master

  The service manual says T/stat should start to open at 188 degrees and be fully open at 206 degrees, the gauges are often inaccurate, I look at a scan tool and see what the computer sees if I am in doubt. Perhaps with hotter weather approaching maybe remove thermostat, add heavy duty flush, flush the cooling system thoroughly and replace t/stat and coolant be you should be OK right now.
  Flag This
  Like0
• Reply

  radray, June 24, 2011, 05:34
  

   Rookie

  thank you,the dealer says he replaced the thermstat,ill try flushing the system.188 really?206 fully open wow!i have a full size chevy 2500 and it runs cooler about 150.
  Reply
  Flag This

• Check Engine light P0128 Running to cool
  From all my research, it seems that this code mean I -(hubby) needs to replace the thermostat....

  Q&A > Chevrolet > 2004 Chevrolet Trailblazer

• Cooling system
  is there a way to test the coolant temp sensor before i go out and spend $35.00 for a new one.

  Q&A > Chevrolet > 2002 Chevrolet Trailblazer

• Air Conditioner only comes on if you move the thermostat up and down
  My air conditioner blows warm air when you first turn it on. If you move the thermostat up and down (from cold to hot) rapidly several times it will start blowing cold air like it is supposed to. ...

  Q&A > Chevrolet > 2007 Chevrolet Trailblazer