Ground the temp sender wire with ignition on, meter should peg out. Check connection and GROUND to temp sender, as I recall there are some that ground through a staple in the gasket. Russell Criswell Vulcan's Forge 3936 Broadway Kansas City, MO 64111 816-931-6303 816-931-9378 fax 877-531-1046 toll-free www.vulcans-forge.com