4-wheel drive light not coming on.


Old 12-18-09, 04:02 PM
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4-wheel drive light not coming on.

On my 04 dodge ram the 4 wheel drive works fine but the indicator light doesn't come on. Is it that sensor/switch that I see on the transfer case?
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Old 12-18-09, 04:20 PM
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Yep. Check to make sure you are engaging completely. It is actuated via vacuum. I had a pinhole in mine and almost never found it. Is yours gas or diesel? If gas check your vacuum lines from the manifold. If diesel, the vacuum is created by a vacuum pump in front of the ps pump. Single hose to a manifold right in front of the firewall.

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