Q: Battery keeps draining can it be a relay? 2007 GMC Sierra 1500

asked by on

A have a good battery about 2 years old the alternator is good can it b a relay that's draining my battery

My car has 90000 miles.
My car has an automatic transmission.

Hello - yes, it could be a stuck relay, or some other electrical component that is not shutting off when it should. To isolate the source of the battery drain, connect an ammeter to the positive (red) battery cable, observe the current drain (likely less than 1 amp), then, one at a time, remove each fuse, check to see if the current drain has dropped to near 0, then reinsert the fuse. This process should identify the faulty circuit in most cases. A professional mechanic, like YourMechanic, can perform this procedure for you, and replace/repair the failing component.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Battery keeps draining can it be a relay? 2007 GMC Sierra 1500

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Put a new transfer case on, now tranny won't shift out of first unless I do it manually

Hi there, thanks for writing in about your 2000 GMC Sierra 1500. Your transmission and ABS system need a vehicle speed reference to operate correctly. The transfer case has two speed sensors located at the rear extension housing. Inspect the...

Q: car cuts out or looses power when going in to corners at low speed

Hello. Thanks for writing in. When it comes to situations like this, always keep it simple. Seeing that the steering is the only issue contribution factor, its likely the pump is going bad. The power steering pump uses engine power...

Q: Air conditioning not working - 2010 Chevrolet Tahoe

Hi there. I've run into this similar concern on several Chevrolet products. The freezing over that you were experiencing is usually cause by a low system charge, then followed by no cold air as the system charge continues to lower....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...