Engine light flashes when put in 4wd

10

Asked by Nov 24, 2016 at 12:26 AM about the 2000 Chevrolet Silverado 1500 Ext Cab Short Bed 4WD

Question type: Maintenance & Repair

My brothers truck when put in 4wd the check engine light would start to flash
then when out of 4wd it would stop not sure what it is tried lookin it up but no
luck any help would be awesome

4 Answers

69,615

Is the truck engageing and running in 4x4 ok?Just light?

10

Yea it engages just the light starts to flash when moving

1 of 1 people found this helpful.
69,615

This is more than likely a bad shift sensor switch that controls the light to the 4x4 light all so,it is built in to the transfer switch, it self,the engine light may be totaly different issue,just being triggered by it,have you had the code,s pulled from engine light?

10

Ya it was for a evap but gunna scan it again in the morning. i wonder if it's the cats cuz I put it in 4 low and it revs higher and I no the cat need replacing

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