Mechanics

NO HEAT

2002 Saturn SC1 • 4 cylinder 2WD Automatic •

I have a 2002 saturn sc1 that is not generating any heat
i have replaced the thermostat and capped fluid
the blower works fine but cold air
is ther a climate control valve or a fuse causing this.
Or is my problem the heater core clogged but I would guess that would be gradual and not so sudden
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Romant1960
February 9, 2011.



Could be the heater core or the air blend door/actuator

Rasmataz
Feb 9, 2011.
Hey rasmataz how have you been?Just to add to this answer I would slide the temp control lever back and fourth from cold to hot and look behind the a/c control's on the drivers side and see if the arm for the blend is moving with temp slider. The blend door is cable operated. Also see if both heater hose's going into the heater core thru the firewall of the car are getting too hot to touch when the engine is up to operating temp.

Saturntech9
Feb 9, 2011.
I'm doing fine Sat9, I hope its likewise for you-Take care and God Bless

Rasmataz
Feb 9, 2011.
Yes possibly the door actuator but the temp control is a dial
not a slider
therefore is it still cable controlled or electronic or vacumn

Tiny
Romant1960
Feb 9, 2011.
Yes you are correct it's a dial I was thinking of the older year saturns 1991-1999 which were slider's. But it's still cable operated so check what I asked you to check and get back to me.

Saturntech9
Feb 10, 2011.
Thank you

Tiny
Romant1960
Feb 10, 2011.
Checked climate actuator working fine
do feel return line of heater core cold inlet hot
i guess heater core
correct?

Tiny
Romant1960
Feb 10, 2011.
Sound's like the heater core is restricted I would take the hose's off the heater core and see if you can blow thru it freely. If you can't then you found your problem. Let me know what you find.

Saturntech9
Feb 10, 2011.