Is it normal for a PT Cruiser to cut out and almost die when running air condition or heater?

Tiny
KAFFENBARGER
  • 2007 CHRYSLER PT CRUISER
  • 80,538 MILES

Just purchased this car. They say this is normal for this kind of engine. When the heat or air kicks on, the car bogs down and shakes like it is going to die. It only does this when you are idling.

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Saturday, October 29th, 2011 AT 11:32 PM

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Tiny
CARADIODOC
  • EXPERT
  • 26,026 POSTS

Normal? Use common sense. Who would buy a new car that did that? More likely the battery was recently disconnected or run dead and the previous owner didn't know how to fix it. If so, the Engine Computer lost its memory and has to relearn "minimum throttle" before it will know when it must be in control of idle speed. It also might not give you the normal "idle flare-up" to 1500 rpm when you start the engine. To meet the conditions for the relearn to take place, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the brake or gas pedals.

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Sunday, October 30th, 2011 AT 6:09 PM

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