I have a good one that I could use some expertise on. Headlights off = tach works perfect. Headlights on = tach sticks at various RPMs. If I punch it to pass someone, it will stick somewhere on the dash and not change until I hit a bump. Never noticed it until I changed the guage face to white. I thought it might be getting hung up on the guage face itself but it doesnt do it with the lights off. WTF? Any input?
2000 GMC Sierra RCSB with a 5.3 and 4L60E. Let the games begin. Started with Camaro E-fans, Nelson Harness, 160* thermo, PaceSetter LT's, Random Tech Cats Hooker Aerochamers and true dual 3" Dumped at the bumper, 2/4 drop, NP performance tune, Built 4L60 and Alpine audio, TR220 cam, LS6 Ported Oil Pump, LS2 Timing Chain, LS2 Lifter trays, Vigilante 3k stall conv., Built 4L60E, 4.11 gears, Detroit Tru-Trac and all of that adds up to no traction and garbage 60' times. What next......?
http://s466.photobucket.com/albums/rr21/fb9120/
With my limited knowledge.. but run into this pretty regularly.. it sounds to me there is a grounding issue somewhere. Or a loose connection somewhere.
One thing thats happened to me is I installed some speakers and had a wire loose and touching something.. and every time I would hit a bump or close a door radio would go out. Hit a bump and it would go back to normal.
So.. it maybe worth checking you connections on the cluster.
- Waiting for an lq9 swap - Super 40 center in dual out - battery swap to spare tire location - exhaust turndown -
Most times when an electrical component like an IPC goes nuts only with the headlights on (or other high load), there is a ground issue.
Tach and speedo sticking is common but usually on the 03+. The fix for those is a new IPC....but I don't think that's what you have.
Yeah, I would think the needle is sticking on the new cluster cover at some point. Did you just replace the stick-on gauge cover? If so, you have have pushed the Tach needle on too much. GO back and take the gauge cover off and reset the Tach needle.
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
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