Skip the auto shop - Our mechanics make house calls

Q: Truck won't stay running

asked by on

The battery kept dying and it would die really quick. I parked it and the truck died. So i replaced the alternator. I jumped it and let it run for a couple of minutes when I came back to it none of the gauges worked and neither did any other controls on the instrument panel. The lights on the instrument panels wouldn't work either. It started to idle down so I gave it throttle and would die without any throttle. The only way it would stay running is if I constantly gave it throttle. I let it die and then The lights came on on the instrument panel. Now the headlights won't turn off and it won't start do to a bad battery.

My car has 197000 miles.
My car has an automatic transmission.

A: Hey there. Did you charge the battery befor...

Hey there. Did you charge the battery before starting the truck with the new alternator? An alternator trying to maintain system charge and charge the battery from dead puts a lot of stress on the alternator and can cause a premature failure. If the truck will only run while you give it throttle, you may have a clogged or malfunctioning idle air control valve. It may be time to replace that battery as well as have the engine control systems checked to see why the truck won’t run without adding throttle. For a problem like this, consider YourMechanic, as a certified technician from YourMechanic can come to your car’s location to address your car problems.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Air conditioning stopped working, and car overheated

Sounds like a hose busted from your radiator and the fluid leaked out of the radiator. If the AC stopped working you may have broken a serpentine belt you will notice the alternator light come on the dash if that...

Q: 1999 Mitsubishi Eclipse running rich and stalling at idle

First of all, you've got to realize that, although those technically don't have a MAF mass air flow sensor, those use what is called a Karman vortex sensor. Those sensors are notorious for going bad on Mitsubishis. They do...

Q: Crank no start

The fact that it requires ether to start suggests that you may have a fuel delivery issue. Since you mentioned it now has a new fuel pump and filter, try tracing the fuel delivery up through the fuel rails. Sometimes,...

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...
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...