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Former Member
Send PMWebster, NY - USA
Joined: 11/9/2003
Posts: 23
Vette(s): 57 Corvette, 63 Corvette convertible, 67 Corvette convertible and currently own a 75 Corvette coupe and 2000 coupe
As I put my 75 back on the road this spring I noticed that the tachometer is regeristing all over the place. As I Decelerate the tach will bounce to 4 or 4.5K rpms. After I am driving for awhile it seems to smooth out but then will start to bounce around again. Any suggestions as to the problem and potential fixes?
Thanks
Kevin
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22720
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Most likely the "tach filter"...it is in-line, part of the wiring from the dist. to the dash. I'll have to look and see exactly where it is, but they are normally pretty close to the dist, and I think, on a white wire...
Maybe someone else will pipe in before I can get back...
Maybe someone else will pipe in before I can get back...
Joel Adams
C3VR Lifetime Member #56 
My Link 
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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in Forum: C3 Engines, Driveline and Handling
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