GMC Yukon Denali XL Electrical?
My Yukon started making a horrible whining noise
from under the hood on the driver side. Then when
driving home it died. The locks started locking and
unlocking on their own and all the dash lights lit up
like crazy. Then it flash Loss Engine Power on the
dash. Now it won’t stay running. It acts weird when
trying to start and when it does it does after 10
seconds or so. We checked the battery and
replaced the throttle control module. There is no
check engine light on at all. We are thinking maybe
alternator? But the battery gauge is right where it
should be and works just fine. Any ideas??? I need
to fix this thing ASAP!
I agree with your thinking: alternator. The battery will soon be dead.
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