Q: The engine hesitates and dies if the lights and AC are on together

asked by on

The engine hesitates and dies if the lights and AC are on together. Vehicle id Toyota with a 1KD-FTV engine.

Hello. The idle air controller is suspect in this scenario - either needs to be replaced or cleaned (if possible). It sounds like it is not responding to the increased load of the alternator. A dirty throttle body or air leak into the intake could also cause a lean condition and poor low-speed performance. I would recommend having a car is stalling inspection completed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of the damage and cost for repairs.

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. The engine hesitates and dies if the lights and AC are on together

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: Stalling when put into drive

Check the inlet air tube between the mass airflow sensor and the throttle body for cracks or loose connections. When you put the vehicle in drive it pulls the hose longer and when it's put in reverse it pushes the...

Q: Check Engine Light is on - 2003 Honda Accord

Hello. If the issues appeared when using the AC and defroster, then they are likely related to that system. In most cases, the AC / Heater does not use vacuum lines as a part of it's operation, so a vacuum...

Q: My car cut off on me and now it won't start. 2001 Toyota Solara

There are many possible issues that will keep a car from starting. There could be a bad fuel pump, a wiring problem, a failed sensor (such as the mass airflow sensor or an oxygen sensor), or any number of other...

Related articles

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...
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...
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...