Electrical problem please help!

[David_Turpin]

I have a 95 yukon 4x4 and it keeps losing power to the fan and heater controls and at the same time the 4x4 won't shift. The 4x4 is shift on the floor but the indicator light won't come on and i think the front diff shift actuator won't work. It keeps coming and going. I noticed if i drive down a bumpy road the fan will go of and on and the light on my dash that shows if the truck is in park or drive blinks off and on.

 

[sgtpoliteness]

Loose connection? Find out what connection (power or ground) those things have in common and work your way back to that source.


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[David_Turpin]

Also my windshield wipers stopped working I searched yesterday but found nothing. I feel like it may be something simple that i am overlooking

 

[David_Turpin]

Found it today! It was a ground wire on the right rear top of cylinder head.

 

[ezdaar]

Congrats! Now check all of the grounds, everywhere.

 

[sgtpoliteness]

Sweet!!


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