vehicle stops running when heater is turned on?

2002 GMC SAFARI
175,000 MILES • V8 • 2WD • AUTOMATIC
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NICHOLAS DOMINICK
  • MEMBER
  • 1 POST
car running turn the heat on vehicle stops, engine light comes on. The fuel pump has been replaced.
Jan 18, 2024 at 12:25 PM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

This may sound crazy but check to see if the A/C compressor engages when you turn the heat on. If it is, disconnect the power supply to it and see if the engine stalls.

Let me know.

Joe
Jan 18, 2024 at 1:31 PM
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