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

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 1,000 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
  1. Home
  2. Questions
  3. 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

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: Car won't drive when gas pedal pressed.

If the engine runs, and engine rpm increases when you press the accelerator, the issue is in the driveline. This could be an engagement issue, such as shifter linkage. It could also be a broken universal joint, clutch, if it is...

Q: Crankshaft position sensor keeps burning out

It's been my experience that typically when I have run across a situation where a sensor keeps failing in the same way, it comes down to one of two situations. Either there is a problem with the wiring/connector for the...

Q: Need to know what I need to put a 390 into my truck which is efi setup

The two engines have different bell housings for the transmission. The mounts are different. The fuel pump is not compatible with the carburetor. The wire harness and ignition system are different. You may even have a transmission cross member location...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...