Skip the auto shop - Our mechanics make house calls

Q: Sometimes the truck will start and run just fine, and other times it will barely want to start and I need to press the gas pedal

asked by on

When I go to start my truck sometimes it starts and runs just fine or it will not start at all or actually get wants to start but cannot get it to start or if I can get it started I push the gas too hard it'll die out I'm wondering if it's my fuel pump or not and what it could possibly be something else

A: Hello. This can be caused by a few differen...

Hello. This can be caused by a few different things. If the vehicle will run by pressing lightly on the gas pedal then it may be a bad idle control valve. If it sticks, it will allow too much air into the engine and cause it to run like this.

It can also be a weak fuel pump or an air flow meter issue. If the engine runs fine once it is started, then I would check the computer for codes first. If none are present, then I would run the engine and see what the sensor readings are to see if anything comes up faulty.

If those are also fine, then I check the fuel pressure to see if the pump is getting weak or to see if the pressure bleeds off while the vehicle sits. If you are thinking of having this starting issue inspected, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this problem.

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: when i start my 2001 jeep Cherokee up, there is an electronic humming sound

Hello, thank you for writing in. Walking through the diagnostic process, we can rule out the wheels and suspension as a cause for the humming, as it happens as long as the car is running. The next step is attempting...

Q: Why my 2000 chevy impala will turn over but want start

There are many causes of hard or no starting but illustrative ones are a failed fuel pump, bad crank or cam position sensor, faulty engine coolant temperature switch (sensor), worn spark plugs, inadequate fuel delivery or pressure (clogged fuel filter),...

Q: Truck won't start after it gets hot. What can cause this?

This is a common sign of a faulty ignition coil. Ignition coils are coated with a varnish-like insulation that becomes brittle over time after being stretched then contracted repeated as the copper beneath them expands and contracts at a higher...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...