Tachometer not working

Tiny
VJDESIGNS07
  • MEMBER
  • 2007 CHEVROLET COBALT
  • 2.2L
  • 4 CYL
  • 2WD
  • MANUAL
  • 182,000 MILES
Just had my clutch master and slave cylinders changed out. Car sit for 2 weeks before repairs. When I turn the key to start, the battery is sluggish and hesitate to start, but eventually cranks up, 4 months battery.
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Wednesday, September 11th, 2019 AT 7:15 AM

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Tiny
MASTERWRENCH
  • EXPERT
Hello,

It sounds like your battery is weak or slightly discharged. You mentioned that it's only 4 months old so it's most likely not a bad battery. You more than likely have an electrical draw somewhere in your vehicle that slowly drains it over a period of time.

I would start by performing this quick battery load test(see link below), just to make sure we don't overlook the possibility of a bad battery(sometimes they are defective). Any local automotive parts store will also test your battery free of charge if you're more comfortable with that.
https://www.2carpros.com/articles/car-battery-load-test

Assuming the battery passes the load test, the next thing you need to do is determine if there is a draw with the key off. The link below will walk you through this process.
https://www.2carpros.com/articles/car-battery-load-test

Let me know what you find!
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Thursday, September 12th, 2019 AT 6:50 AM

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