Skip the auto shop - Our mechanics make house calls

Q: Truck starts. Idles fine. I give it a little gas and it wants to stall. I give half throttle or full throttle it runs fine.

asked by on

I need to know what could be causing this problem. I've changed so many sensors. I haven't checked relays yet. I've changed all filters. New fuel pump. Fuel regulator. Injectors are good. No vacuum leaks. About to clean the egr in a few minutes. After that, I'm checking th o2 sensor. That's about it so far. And still, when I barely push the gas peddal it wants to die. But when I push it half way or all the way it's fine. Can anyone help me please?

My car has 98223 miles.
My car has an automatic transmission.

Hi there. Since you’re going to clean the EGR in a few minutes, that might be where your problems are coming from; that or the throttle body being coated with carbon build-up on the inside of the throttle blades. Try cleaning both items and see if that helps to reduce your engine stalling out issue. If those two jobs don’t fix your issue, contact one of our local mechanics who can help you diagnose the 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
  1. Home
  2. Questions
  3. Truck starts. Idles fine. I give it a little gas and it wants to stall. I give half throttle or full throttle it runs fine.

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: Motor dies when stopped

Hi There, It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate. The idle air control valve is a small valve on the engine's intake system that reads the air...

Q: Heater blowing cold air

Hello. You are likely looking like an internal leak somewhere in the system. If there are no visible leaks inside of the engine bay or visible leaks on the ground, then the engine is consuming the coolant. Have there been...

Q: Do I have to remove the upper intake manifold to replace my fuel pressure regulator ?

The fuel pressure regulator on a sequential fuel injection system is inside the intake manifold on this engine and the upper intake needs to be removed for access. Make sure to replace all gaskets and seals when manifold is removed....

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...
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...