Having problems with your 2001 Pontiac Aztek ?

Engine heats up blower works but no heat. - 2001 Pontiac Aztek

Posted / edited by AnonymousUser on : 19-02-2018

Answers :

\015\012\015\012Thanks\015\012for using FixYa. Try and check if the heater core is plugged. Find\015\012the 2 coolant lines going to the heater core. They are right next to each other\015\012with approx 3/4" hoses going to the engine. Now, warm up the engine with\015\012the heater on max (don’t turn on the fan). Next, feel if the hoses are warm\015\012(maybe HOT!) If they are not warm, then you most likely have a plugged core. A\015\012back flush will resolve the issue. If your hoses are warm, turn on the fan. One\015\012hose should go cold (or cooler than the other, actually should be about the\015\012same temp as the air from your air vents, if there is a plug). If both hoses\015\012are hot and stay hot, and you have no heat, then the problem is not with the\015\012heater core but with the blend doors.
\015\012\015\012There are\015\012electric motors that operate the "blend doors" inside the dash\015\012directing air flow from the heater core and A/C evaporator core to the cab of\015\012the vehicle. If you feel a drastic difference in one of the radiator hoses,\015\012then try replacing the thermostat and see what happens. If all the heater and\015\012radiator hoses are pretty much the same temperature I would suspect a control\015\012problem in the dash controls or in the blend door operation. You’ll need to\015\012remove the dash to check these.
\015\012\015\012Please do\015\012accept the solution if the issue is resolved or else revert for further\015\012assistance.
Repair Help & Product Troubleshooting for 2001 Pontiac Aztek

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Loading ...

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0090 seconds