Skip the auto shop - Our mechanics make house calls

Q: My car will not always start - 2003 GMC Sierra 1500

asked by on

sometimes when I turn the key, I get nothing no sound or anything Thought it was battery got a new battery about a month ago Still does not always start when I turn key Lights and horn and radio still work I'm thinking its the starter
My car has an automatic transmission.

This may potentially be related to a faulty starter relay. This is a unit that directs power from the battery to the starter solenoid which then engages the starter when you turn the key. When this is not working properly, you may notice intermittent starting problems as you describe.

Generally, when this does fail, it does so very randomly and usually without warning other than intermittent starting. The power from the battery will still power other accessories such as radio, horn, etc. I would recommend having an expert from YourMechanic come to your location to determine why the car will not start and repair your starter relay if needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: My vehicle keeps overheating.

Hi there. The overheating condition could be caused by three different things on your vehicle. Plugged Radiator Water pump failure Burned head gasket The radiator could be plugged up causing the coolant to not flow when the engine...

Q: Transmission does not shift properly

This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such...

Q: ABS reacts while braking at low speeds

I am having a little trouble fully grasping the problem you are having but I will provide the most full answer possible. If the ABS system is engaging and causing the brakes to lock up there could be a...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...