The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Quick Quadraject question

1-Ton · 08-18-2016, 04:24 PM

Sounds to me like the throttle shaft is worn out. A worn out throttle shaft will cause a vacuum leak, thus accounting for the lack of idle change when adjusting the idle screws. A worn out throttle shaft can also cause the throttle primaries to get hung up, thus causing the sticking throttle.

08-18-2016, 04:24 PM	#10
1-Ton Registered User Join Date: Jul 2016 Location: las vegas, NV Posts: 16	Re: Quick Quadraject question - Internal Leak? Sounds to me like the throttle shaft is worn out. A worn out throttle shaft will cause a vacuum leak, thus accounting for the lack of idle change when adjusting the idle screws. A worn out throttle shaft can also cause the throttle primaries to get hung up, thus causing the sticking throttle.