Skip the auto shop - Our mechanics make house calls

Q: engine dies after starting

asked by on

Sometimes when I start up my hummer it wants to die or stop running. It does this about one out of ten times and you can smell gas like it's flooding the engine. It will idle normally after you step on the accelerator to keep it running before it will die. The temperature outside doesn't make any difference in this problem. It does the same thing no matter what. Do you have any suggestions?

A: Hello. Most of the time of you can smell ga...

Hello. Most of the time of you can smell gas when this happens, as it is because the fuel pressure regulator is leaking or there is an issue with the coolant temperature sensor not reading correctly. It can also be a failing crank sensor or a dirty throttle body, but those do not usually cause the fuel smell. I usually check the regulator first by seeing if there is fuel in its vacuum line. If there is, then it is bad. If not, then I install a scan tool to see if there are any sensors reading improperly. If you are looking to have this done, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your car's stalling 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・Save up to 30%

Get a quote

What others are asking

Q: After multiple replacements, gas mileage is worse - 1997 Ford Aspire

The fuel economy will change depending on the whether the transmission is manual or automatic. According to the manual transmission Ford Aspire is getting a combined 33mpg while the automatic get 26mpg. Ford's initial adverts were 34 mpg city...

Q: Stalls while applying throttle. Already changed two warm up regulators

Hello. I think you may have a problem with the cold start valve not dumping the proper amount of fuel to allow the car to start and remain running on a cold start. The distributor should be checked as well...

Q: Is my heater core bad or condenser?

Hi there, thanks for writing in about your 2008 Ford Escape. The first thing you need to do is to check your coolant level when your truck is cold. Do this by removing the radiator cap. The radiator cap on...

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...
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...