Tach Problem

joeman42
0

Asked by joeman42 Dec 06, 2010 at 11:35 AM about the 1975 Chevrolet Corvette Convertible

Question type: Maintenance & Repair

When I first start my 75 Vett, all is normal.  When the car heats up to running temperature and I stop at a light, the tach reads high (approximately 2000 RPMs) but the car is ideling normally.  If I take my foot off the brake, the tach reads the correct RPM.  I believe it to be an electrical problem (possibly a ground floating) but cannot find anything wrong.  Any suggestions would be appreciated.

1 Answer

Armen
125

Check and see where the power feed comes from. I'll bet they hooked power to the tach off of the "hot" line to the brake lights. Cure it by running power directly from the positive on the battery or to an open port on the fuse block.

Your Answer

Add photo

Related Questions

Search Chevrolet Corvette Questions

Chevrolet Corvette Experts

#1 carGrrl
carGrrl
Reputation 870
#2 Tom Demyan
Tom Demyan
Reputation 760
#3 califcarson
califcarson
Reputation 560
View All

Related Models For Sale

Used Chevrolet Camaro"
591 Great Deals out of 28,177 listings starting at $1,795
Used Ford Mustang"
1,045 Great Deals out of 25,221 listings starting at $1,329
Used Porsche 911"
144 Great Deals out of 3,216 listings starting at $12,995
Used Dodge Challenger"
325 Great Deals out of 18,387 listings starting at $11,497
Used Dodge Charger"
639 Great Deals out of 30,853 listings starting at $2,950
Used BMW 3 Series"
1,113 Great Deals out of 36,874 listings starting at $1,200

Used Cars For Sale

2014 Chevrolet Corvette For Sale
28 Great Deals out of 1,522 listings starting at $51,995
2013 Chevrolet Corvette For Sale
16 Great Deals out of 369 listings starting at $31,999
2012 Chevrolet Corvette For Sale
13 Great Deals out of 288 listings starting at $32,995
2011 Chevrolet Corvette For Sale
11 Great Deals out of 312 listings starting at $25,995