engine is stalling once I turn the heater on

2003 MAZDA TRIBUTE
91,000 MILES
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PRISCILLA
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  • 1 POST
My Mazda Tribute '03, stalls when the heat is on and the car is idle. This only happens when the heat is on. What could this be?
Also, my check engine light came on and my mechanic got a p0509-idle air reading (if I remember correctly). Could these two issues be related?
Help!
Dec 21, 2011 at 5:17 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Have the idle air control valve checked and also the charging system
Dec 21, 2011 at 5:24 PM
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CJ MEDEVAC
  • ✓Experienced Mechanic
  • 11,000 POSTS
YOU RECKON THE A/C IS COMPRESSOR IS LOCKED UP?

THEY ALSO TURN ON IF THE HEATER IS IN A MODE W/ DEFROST

SEE MY ANSWER IN THIS ONE

https://www.2carpros.com/questions/2005-chevrolet-impala-belt-keeps-ripping-into

PLEASE RETURN W/ RESULTS

THE MEDIC
Dec 21, 2011 at 5:49 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Yes, the P0509 is idle control related and would affect the idling speed ans stalling when AC compressor kicks in.
Dec 22, 2011 at 4:29 AM
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