The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 72 Sierra Grande wiring

Bigblock50 · 10-09-2020, 09:30 PM

LockDoc - I'll try the jumper tomorrow, forgot about that option. The NSS switch itself is good/new but the detent Park position in the transmission is well-worn and loose. You have to hunt a bit to set the NSS.

One question, though. If I test the purple wire contacts with the dual connector detached from the NSS, which result should I see with the ignition switch in the "on" position?

(a) Both contacts cold
(b) One contact hot, one cold

In my test today I got result (a).

10-09-2020, 09:30 PM	#33
Bigblock50 Registered User Join Date: Aug 2020 Location: Luray, VA Posts: 35	Re: 72 Sierra Grande wiring - still at it LockDoc - I'll try the jumper tomorrow, forgot about that option. The NSS switch itself is good/new but the detent Park position in the transmission is well-worn and loose. You have to hunt a bit to set the NSS. One question, though. If I test the purple wire contacts with the dual connector detached from the NSS, which result should I see with the ignition switch in the "on" position? (a) Both contacts cold (b) One contact hot, one cold In my test today I got result (a).