Q: Driver has to gas engine to prevent shutting down

asked by on

My pickup has been running rough and I want to fix this, as well as a problem with the engine. When I turn on my truck and begin to drive it, the engine shuts down while I'm driving. If I can tell it is about to happen, I can give it gas and prevent its quitting. This is not only annoying, but cause for concern for my safety and my passengers. I also want to tune up my truck. It gets 26 mpg mileage, which is great; however, I think it could get even better. What should be my next step in getting my pickup in top rate performance?

Hello there, thank you for asking about your 1993 Isuzu Pickup. If you’re getting 26 mpg in a 23 year old truck, that’s as good as it gets. As far as the stalling out, there are many potential causes. Since you said it will stay running if you give it gas, my first thought is lack of fuel pressure. This could be due to a failing pump or pressure regulator. Of course, applying the throttle also changes engine load and manifold vacuum, which can affect a number of onboard sensors and components. The only way to know the exact cause is to have your vehicle inspected by a professional, such as one from YourMechanic, who can inspect your car stalling problem and replace the fuel pump or fuel pressure regulator if necessary.

Was this answer helpful?
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. Driver has to gas engine to prevent shutting down

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: Q: Loud noise when accelerating

The scenario you described seems likely, however, the only way to know for sure would be to get your exhaust system checked. I recommend that you have a mechanic, such as one from YourMechanic, come to you and run a...

Q: RPMs running high on car

Sounds like you might have a large vacuum leak. Think of your engine as a big vacuum cleaner. If the vacuum cleaner has a restriction then it slows down, if the port is completely open it goes as fast as...

Q: oil pump drive

Hello there, thank you for asking about your 1993 Pontiac Grand Prix. The pump is self priming. If the red Oil Pressure Warning Light is not on, there is sufficient oil pressure. When engines are assembled, the oiling system is...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...