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4wd actuator issue

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#1

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07-02-2012, 12:01 AM

1991ram

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4wd actuator issue

i have a 91 w150 4wd. i just bought a new 4wd actuator and installed it to make my constant 4wd engaged light go off. i got the light to go off but as soon as i tested it thru 4wd high and low the light wont go off now. am i looking at a vacuum issue or electrical?

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#2

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07-02-2012, 05:41 AM

sls001

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The CAD system is all vacuum with a simple switch to turn on the light.

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07-02-2012, 01:28 PM

1991ram

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how much vacuum should this sytsem be pulling? just so i can test it

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07-02-2012, 05:37 PM

sls001

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It should have whatever manifold vacuum your engine is pulling

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