Skip the auto shop - Our mechanics make house calls

Q: Truck won't start even with new battery.

asked by on

Truck will not start after replacing the battery, and the Theft Light is blinking. It sounds like the fuel pump is not getting power. I sprayed Quick Starter into the air intake and it started right up and then died. I checked the fuses, and tripped and reset the fuel pump relay, with no luck. I changed the fuel filter, which didn't seem to help.

A: The antitheft system needs a proper code ke...

The antitheft system needs a proper code key in order to turn off the antitheft system. If you have a different key then try that. If this does not work then try to disconnect the battery and reconnect it after ten minutes. Try to start it again. If that does not work then a dealer WDS scanner may be needed to reprogram the code keys to work again. An inspection by a certified mechanic can pinpoint exactly why you're car is not starting.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Truck won't start after replacing head gasket

Hi, the way to tell if it was assembled incorrectly is to do a compression test on the engine and see if you have compression on all cylinders. You may have timed the engine incorrectly and this would show up...

Q: Runs fine then randomly quits and won't start

You will need to first check to see if the vehicle has fuel pressure. Replace the fuel pump if it is bad. You may have to remove the fuel tank completely and get out the small metal particles out of...

Q: Radiator fans wont turn off unless I turn off the car, why?

It sounds like you have checked just about everything that controls the fans other than the fan power relay itself. As you may know the coolant fan relay turns the fans off and on by receiving information from the coolant...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...