MY CAR HAS JUST STARTED DOING THIS WHEN I START...

2007 Saturn Aura

Tiny

Tom Roth

January, 19, 2011 AT 9:38 PM

My car has just started doing this - when I start it or am sitting idle at a stop light the heat goes to cool instead of staying warm but goes back to warm when the car is in motion. No warning lights come on - what can this be?

3 Answers

Tiny

saturntech9

January, 20, 2011 AT 1:20 AM

Do you have the 3.5L or the 3.6L engine?

Tiny

Tom Roth

January, 20, 2011 AT 3:23 PM

3.5L

Tiny

saturntech9

January, 21, 2011 AT 3:42 AM

Let the car warm up and see if both upper and lower radiator hoses are hot. Also see if both heater hose's are getting hot going into the heater core to the firewall. Let me know what you find.

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