Ford F-150 - 1997-2003 :: No Lights Or Any Audible Noises When Try To Switch The Truck Into 4WD
Jul 3, 2011
Well, I've searched and can't find a good solution for my 4 wheel drive issue I'm having on my 97' F150 4.6L 4wd with electronic shift on the fly.
Here is the issue: When I go to switch the truck into 4wd I get no lights or any audible noises that its attempting to shift into 4wd. Basically nothing happens. The lights do cycle when I start the truck up so I know they aren't blown out.
So far I've checked or replaced the following: All fuses and vac lines, replaced transfer case motor, inspected the actuator, pulled interior 4wd switch/**** to make sure its getting power.. Now I'm stumped, frustrated and tired of running to the parts store
I'm thinking its either the GEM module, the actual interior switch since I'm getting nothing to happen when I switch it to 4wd..?
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I have strange rubbing and whumping noises coming from underneath my truck. Yesterday I changed the old e-brake and lines, thought it my be rubbing on the wheel. Today I changed the front and rear axle u-joint and rear pinion seal. The front u-joint was ceased and the pinion seal was leaking. I thought this would cure it but the noise is still there , the noise is more pronounced when I make a turn. Besides that the truck runs perfect. This summer I changed all 4 rotors, calipers and pads and ball joints , shocks and muffler. Tomorrow I will jack the front up and check the front, where the noise would coming from.
2001 F150 4X4 7700 ....
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I have had the PSD about 2 months. It's a 2000 Ext cab LXT.
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