Question about 1999 GMC Suburban
Have a 1999 suburban. Central door locking system does not seem to have enough energy to fully lock or unlock door motors. More you try to lock or unlock, weaker the power level becomes. Occasionally if left alone for a couple of days, seems to charge up and has almost enough power
The locks do not operate with motors. They are individually operated by cylinoid switches which push or pull on the linkages. Older vehicles usually have these to fail in the colder months due to the thicker grease and sludge, etc. It sounds like your main control swithc is operating ok. You will likely have to take off the door panels and lubricate the linkages and switches and put anti corrosion grease (get at electrical supply place) on the wire connections. This will likely solve the problem or you may need to dissasemble and refurbish a switch as needed. If unable to rebuild, you will need to replace it.
Posted on Jan 06, 2009
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Posted on Jan 02, 2017
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