Why does my Chevy Equinox stall at idle?
Why does my Chevy Equinox stall at idle?
The first is that by limiting the amount of torque when you push the gas pedal for a second or two, the engineers at GM were able to increase engine life by reducing the stress on it during takeoff. The second is improved fuel economy. When the throttle position sensor fails, it defaults to idle speed.
Are there any issues with the Chevy Equinox?
One of the most common issues with the 2nd generation Chevy Equinox is a stalling problem. The most challenging part of the problem is that they are known to stall at any time. Before troubleshooting any automotive issue, including stalling issues with the Chevy Equinox, make sure that you check the vehicles trouble codes with an OBD2 scanner.
How long does it take for GM throttle body to relearn?
If you don’t do a relearn procedure, the PCM will “hunt” for a new baseline idle. It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. 1) Start the engine and let it idle in park for 3 minutes.
What happens if the throttle position sensor fails?
When the throttle position sensor fails, it defaults to idle speed. Otherwise, the vehicle could take off on you and cause an accident. So, if the Equinox loses signal from the Throttle Position Sensor for a moment, it’ll feel like a stall. Here’s a great article on diagnosing a bad throttle position sensor from cars direct.
How to troubleshoot an automotive engine high idle?
The troubleshooting procedure for high and low idle conditions are similar, which are included in the following: Step 1 – If the check engine or service engine light soon has illuminated retrieving the diagnostic trouble codes could lead you in the right direction of what the problem is, or is related too.
How does throttle bore work on car engine?
Step 5 – A throttle bore is used to regulate the volume of air flow the engine consumes. Controlled either by computer or by manual foot pedal this device must be clean and free from coking build up (light tar substance.)
What happens when you replace the throttle body?
If you replace the throttle body, the PCM won’t know and will continue to use the adaptive settings as if the carbon buildup is still in place. If you don’t do a relearn procedure, the PCM will “hunt” for a new baseline idle.
How can I check the idle air control?
To perform a rough check of the idle air control, remove the valve while reconnecting the wiring harness. While observing the valve with a flashlight, turn the key to the “ON” position, (DO NOT START ENGINE.) the valve should move slightly.
Why is my car stalling at high speeds?
You take your foot off the gas pedal to apply the brake, but your engine begins to idle very roughly, and then it stalls. Yet, when you restart the engine and run the car at higher speeds, it seems to run fine, or at least more smoothly. Here’s what could be wrong: If you have a carburetor, you may have a bad accelerator pump or power circuit.
What does it mean when your car throttles up while driving?
In these cases, the TPS isn’t providing the right input, the onboard computer cannot direct the engine to work properly. When the car accelerates while driving, it usually means the butterfly valve inside the throttle has closed up and pops open suddenly when the driver presses on the accelerator.
Can a diesel engine have no throttle response?
Diesels have to have that full flow of fuel to the injection pump or you have no throttle response. koboma : Let me know how that works out. Thank you. Customer: The fuel filter was changed 10 hrs ago, do you still think that’s it.
Why does my lawn mower stall at full throttle?
When the engine is run at full throttle, especially under load, the air flow is much greater, which causes more back pressure, and results in the engine stalling. Fixing a restricted exhaust system is usually an easier repair.
Why does my car stall when I Turn Off the engine?
The engine will often run fine at idle, but will die when it is throttled up. This is because there is less air moving through the engine at idle. When the engine is run at full throttle, especially under load, the air flow is much greater, which causes more back pressure, and results in the engine stalling.
The first is that by limiting the amount of torque when you push the gas pedal for a second or two, the engineers at GM were able to increase engine life by reducing the stress on it during takeoff. The second is improved fuel economy. When the throttle position sensor fails, it defaults to idle speed.
In these cases, the TPS isn’t providing the right input, the onboard computer cannot direct the engine to work properly. When the car accelerates while driving, it usually means the butterfly valve inside the throttle has closed up and pops open suddenly when the driver presses on the accelerator.
