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2001 VW Beetle heater not heating.

I have flushed the cooling system, replaced the thermostat, flushed the heater core and no change. All hoses get hot except lower hose. I read somewhere that it may be a water pump issue; thoughts on that? Also, could it be the core?

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  • Cars & Trucks Master
  • 5,401 Answers

If both your heater hoses are hot, the heater core is circulating fluid. If only one is hot, and one is cool-then the core is plugged or has an air block, or a valve in the heater line is closed if that applies.
If the engine stays at normal operating temperature, doesn't overheat at all, there should not be a problem with the water pump.

The problem may be with the doors in the heater case not operating properly.

Posted on Nov 26, 2013

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Posted on Jan 02, 2017

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j_del
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SOURCE: BOTTOM RAD HOSE COLD TOP HOT. ENGINE TEMP ABOUT

Did you burp the air out of the system after changing those parts? It sounds like the thermostat isn't opening which is why the lower hose is still cold. Click my screenname, go to my tips and tricks, and choose the one about burping the cooling system - it may help you out.

Posted on Jan 28, 2010

jturcotte
  • 8743 Answers

SOURCE: I have a 2001 Ford Taurus with heater issues.

No, there is no valve in your car. The likely problem is a clogged core. Would you like instructions for replacing it?

Posted on Dec 28, 2010

dttech
  • 4803 Answers

SOURCE: Heat troubles..92 dodge caravan 3.3L..new

If it is fogging your windows, you have a leaking heater core. Dash removal is required to fix it.

Posted on Jan 11, 2011

Testimonial: "great advice,,but I am not losing antifreeze from my cooling system,"

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