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Re: [GMCnet] 4.8 MPG [message #324269 is a reply to message #324254]

Sat, 23 September 2017 11:04

Ray Erspamer

Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin

Karma:

Senior Member

As I mentioned above we average 8.9 MPG. I religiously keep tract of our mileage to make sure everything is OK. Two years ago our mileage dropped to 6.5 and engine performance was terrible, so I knew something was up. After LOTS of searching I found a vacuum hose in front of the carb that was split on the bottom side. I replaced it and the performance and MPG was all back to normal. Just passing on info.

Ray

Ray Erspamer 78 GMC Royale Center Kitchen 403, 3.70 Final Drive Holley Sniper Quadrajet EFI System, Holley Hyperspark Ignition System 414-484-9431

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[Message index]

		[GMCnet] 4.8 MPG By: Keith V on Tue, 19 September 2017 18:34
		Re: [GMCnet] 4.8 MPG By: pjburt on Tue, 19 September 2017 19:27
		Re: [GMCnet] 4.8 MPG By: johnd01 on Tue, 19 September 2017 21:44
		Re: [GMCnet] 4.8 MPG By: Keith V on Tue, 19 September 2017 22:13
		Re: [GMCnet] 4.8 MPG By: Bullitthead on Tue, 19 September 2017 23:40
		Re: [GMCnet] 4.8 MPG By: richshoop on Wed, 20 September 2017 11:58
		Re: [GMCnet] 4.8 MPG By: Keith V on Wed, 20 September 2017 12:52
		Re: [GMCnet] 4.8 MPG By: johnd01 on Wed, 20 September 2017 13:38
		Re: [GMCnet] 4.8 MPG By: Keith V on Wed, 20 September 2017 15:40
		Re: [GMCnet] 4.8 MPG By: johnd01 on Wed, 20 September 2017 16:07
		Re: [GMCnet] 4.8 MPG By: richshoop on Thu, 21 September 2017 09:54
		Re: [GMCnet] 4.8 MPG By: richshoop on Thu, 21 September 2017 09:49
		Re: [GMCnet] 4.8 MPG By: kstockwell on Thu, 21 September 2017 07:03
		Re: [GMCnet] 4.8 MPG By: Phantom2 on Fri, 22 September 2017 23:42
		Re: [GMCnet] 4.8 MPG By: Ray Erspamer on Sat, 23 September 2017 11:04
		Re: [GMCnet] 4.8 MPG By: jhbridges on Wed, 20 September 2017 08:27
		Re: [GMCnet] 4.8 MPG By: Ronald Pottol on Wed, 20 September 2017 09:04
		Re: [GMCnet] 4.8 MPG By: Chris Tyler on Wed, 20 September 2017 16:48
		Re: [GMCnet] 4.8 MPG By: johnd01 on Wed, 20 September 2017 18:04
		Re: [GMCnet] 4.8 MPG By: Kingsley Coach on Wed, 20 September 2017 19:31
		Re: [GMCnet] 4.8 MPG By: johnd01 on Wed, 20 September 2017 19:54
		Re: [GMCnet] 4.8 MPG By: James Hupy on Thu, 21 September 2017 09:55
		Re: [GMCnet] 4.8 MPG By: richshoop on Fri, 22 September 2017 10:39
		Re: [GMCnet] 4.8 MPG By: James Hupy on Fri, 22 September 2017 14:17
		Re: [GMCnet] 4.8 MPG By: Ray Erspamer on Thu, 21 September 2017 16:55
		Re: [GMCnet] 4.8 MPG By: BobDunahugh on Fri, 22 September 2017 22:12
		Re: [GMCnet] 4.8 MPG By: James Hupy on Fri, 22 September 2017 22:40
		Re: [GMCnet] 4.8 MPG By: James Hupy on Wed, 17 January 2018 16:54
		Re: [GMCnet] 4.8 MPG By: jimk on Wed, 17 January 2018 17:30
		Re: [GMCnet] 4.8 MPG By: NextGenGMC on Wed, 17 January 2018 20:50
		Re: [GMCnet] 4.8 MPG By: Richard Denney on Wed, 17 January 2018 22:09
		Re: [GMCnet] 4.8 MPG By: jimk on Wed, 17 January 2018 22:52
		Re: [GMCnet] 4.8 MPG By: tphipps on Thu, 18 January 2018 09:06
		Re: [GMCnet] 4.8 MPG By: RF_Burns on Wed, 17 January 2018 19:51

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