Q: While idling, if I hit the gas, my car will shut off.

asked by on

(THE FOLLOWING MAINTENANCE WAS DONE ALL AT ONCE DUE TO REGULAR WEAR AND TEAR/NO ACCIDENTS): I just replaced my engine at 175000 miles to a basically new engine (42000 miles). I also replaced my radiator, my catalytic converter, my transmission sensor on 3rd. a few weeks back i replaced the hose that attaches to the engine and radiator (i didnt have a thermostat there, i was told leaving it off was ok). WHEN I PRESS THE GAS WHILE MY CAR IS IN IDLE MY CAR TURNS OFF. WHEN I ATTEMPT TO PUT MY CAR IN DRIVE MY CAR TURNS OFF. MY CAR RUNS PERFECTLY FOR HOURS WHILE IDLING unless you hit the gas. WHAT COULD BE THE ISSUE?

My car has 175000 miles.
My car has an automatic transmission.

Hi! If it has never run right since the engine replacement I suggest rechecking every connection on every sensor. Take them off one at a time, inspect closely, and put them back on. I would also want to see fuel pressure test results. It sounds like it is only getting just enough fuel to idle, but not accelerate. Verify that the timing belt is installed correctly so the crank and cams are in proper time.

A badly restricted exhaust system can cause an engine to stall. A scan tool should be used to check for diagnostic trouble codes (DTC’s) and view engine data. BTW, a thermostat needs to be installed for correct operation of every engine, but that is not causing it to stall off idle.

If you’d like to get this fixed, consider YourMechanic, since you can’t get the car moving. A certified technician can come to your location and diagnose your stalling issue firsthand.

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. While idling, if I hit the gas, my car will shut off.

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: How do you activate the auto lights?

Automatic lights allow you to essentially “set it and forget it” when it comes to using your headlights. If your car is equipped with this function, you can turn your lights to “auto”. When the light level outside drops low...

Q: What is causing my warning lights to come on?

Your battery and charging system will need to be tested to see if the alternator is charging correctly. The alternator is most likely the cause of your Charge Light and Battery Light coming on. You should replace the alternator after...

Q: Backup battery problem - 2002 Honda Accord

Hello. If your car's power windows and clock are not working, then the first thing I would check are the fuses. It may be possible that the fuses for these accessories may have burned out and need to be replaced....

Related articles

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...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...