Heater cuts off when van is cranked

Asked by Michael Oct 02, 2022 at 07:50 PM about the 2001 Chevrolet Express Cargo 2500 Extended RWD

Question type: Maintenance & Repair

I replaced my ignition sprockets and
tumbler.with the key in the on position it works
fine but when I crank it it cuts off.

4 Answers
307,255

Gene answered about a year ago

All of my vehicles do the same thing. Your radio cuts of also. It’s normal.

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38,925

beatupchevy answered about a year ago

I believe when the starter is engaged all other circuits are off to give the starter max. amps .So that may be normal .

2 people found this helpful.
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202,415

Ed92626 answered about a year ago

Gotta wonder how much thought was put into this question..... Does the heater cut off or is it the fan? Accessories don't get power to them when the ignition switch is in the start position, so the fan doesn't run. If it's actually the heater off when starting the engine, how would you know?

2 people found this helpful.
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