Does someone know what this could be?

Asked by gqshirley Jun 18, 2020 at 12:05 PM about the 2006 Chevrolet Silverado 2500HD 1LT Crew Cab 4WD

Question type: Maintenance & Repair

When I crank my truck it will not shut off when
I turn the key off. With the key off I can turn off
the AC power button then the truck shuts off!
WTH!? I just replaced the ignition switch does
exactly the same. Any thoughts? It’s 6.0 gas
engine. Bought it new has been a great truck
till now

1 Answer

I had an MGB with a Lucas Electrical system. I got rear ended taking out the tail light and bulbs on the passenger side. I fixed it myself and put the signal light bulb in the slot for the brake lights and vice versa. Then I noticed that if my headlights were on and my foot was on the brake with the key in my hand the engine would not shut off until I either turned out the lights or took my foot off the brake. I fixed the problem by putting the bulbs in the correct socket. Have you done any electrical changes recently?

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