| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | On my 55.2 GMC, I have pulled gently on the switch while pushing on the spring loaded button on the port side of the switch. All positions of switch button(all the way in, first notch, all the way out) have been tried, no joy. Am I missing something, or is it likely clogged with dirt( both devices move easily) or something else?
Th@nks,
Edi
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
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