Skip the auto shop - Our mechanics make house calls

Q: Truck won't start consistently

asked by on

Truck starts with a jump and stays running. But after sitting for a while sometimes will not start.... Able to push start and usually starts with a jump.... Nothing is consistent and very hard to troubleshoot. I have replaced all spark plugs, fuel filter, battery terminals, and had auto zone check the battery which they said was still good. Everyone keeps saying alternator, but no dim lights or anything and truck stays charged once running. Can you please give any advice, thanks

A: Hi there: If the battery tested as being g...

Hi there:

If the battery tested as being good, then the alternator shouldn’t be the source of your problem. The alternator is responsible for charging the battery but also for powering all the components on your vehicle as the engine’s running. It may be a problem with the connections from the alternator to the battery, however. The best way to determine the exact source of your battery issues is to contact one of our local mechanics to complete a battery charging system inspection.

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: Starter drive flywheel noise

Hey there. It's possible that the teeth on the flywheel (manual transmission) or flexplate (automatic transmission) are worn or banged up sufficiently that the starter drive on the starter won't engage properly. Moving the crankshaft as you mention may realign...

Q: Why is my minivan difficult to start when the engine is warm, but not when it is cold?

Hey there. There are a couple of reasons why this could be happening. I have seen a faulty coolant temperature sensor cause this problem on warm start up. There also could be a problem with the crankshaft position sensor not...

Q: Leaking mass green puddle in the front

The most common leak for what you are describing is from the water pump. The only way to be sure is to test and see where it is coming from. I recommend having a technician, such as one from YourMechanic,...

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.