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Engine is stalling once I turn the heater on

Tiny
PRISCILLA
  • MEMBER
  • 2003 MAZDA TRIBUTE
  • 91,000 MILES
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!
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Thursday, December 22nd, 2011 AT 1:17 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the idle air control valve checked and also the charging system
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Thursday, December 22nd, 2011 AT 1:24 AM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 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
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Thursday, December 22nd, 2011 AT 1:49 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Yes, the P0509 is idle control related and would affect the idling speed ans stalling when AC compressor kicks in.
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Thursday, December 22nd, 2011 AT 12:29 PM

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