Tach help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TheApocalyptican · 10-11-2011, 09:30 PM

Just finished installing a tach in place of the HUGE fuel gauge, and have the small fuel gauge in the lower left spot on the cluster. Got everything wired up and work except for the fact the tach seems to read low(halfway between 5 and 0) when idling in gear. Haven't taken it out for a drive, but upon revving, the rpms seem good. Also, they seem good when in park or neutral. The cluster that I used to add to mine was from a light duty 8cyl truck. Think the tach is dyeing? Maybe need to pop the needle off and re-position?

Also, figured I'd post a pic of what the gauges are going to look like when completed:

10-11-2011, 09:30 PM	#1
TheApocalyptican Registered User Join Date: Jun 2010 Location: Las Vegas, Nv Posts: 312	Tach help Just finished installing a tach in place of the HUGE fuel gauge, and have the small fuel gauge in the lower left spot on the cluster. Got everything wired up and work except for the fact the tach seems to read low(halfway between 5 and 0) when idling in gear. Haven't taken it out for a drive, but upon revving, the rpms seem good. Also, they seem good when in park or neutral. The cluster that I used to add to mine was from a light duty 8cyl truck. Think the tach is dyeing? Maybe need to pop the needle off and re-position? Also, figured I'd post a pic of what the gauges are going to look like when completed: __________________ 1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s

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