Why does my car not start when warm?
If there’s nothing wrong with your coolant levels, your motor oil, or your battery, and your car still won’t start in hot weather, it could indicate a deeper issue with your engine. Your coolant temperature sensor might be broken, for instance, which means that the engine will “think” it’s hotter than it is.
Why is my car hard to start cold or runs poorly?
Those are your main causes of cold start enrichment failure. I suppose a fuel pump could be weak, and not be able to deliver enough fuel. Or a fuel pressure regulator could be going out. Generally speaking, any other cause of poor running/a hard start cold would also cause problems while the engine was warm.
What’s the best way to start a car cold?
The next time you go to start the engine cold, turn the ignition switch to the run position so the dash lights come on for two seconds, and then turn the ignition switch off. Repeat this a half dozen times and then try starting the engine.
Can a car only start when cold but dies once warm?
Car only start when cold but dies once warm and wont star… The car will start fine once cold and drive till it reaches operating temperature, once it does it will just die and wont start until its cold again..
What does the cold start injector do on a car?
The cold-start injector is in charge of smoothing out a rough idle when the engine is operating at a temperature that is below optimal levels. One the engine reaches the right temperature, the cold-start injector turns off.
What kind of car has trouble starting when the engine is cold?
My car runs fine, but has trouble starting when engine is cold. My car takes between 3 and 10 seconds to turn over when you try to start it. Once it starts, it runs perfectly. The car is a 2008 Nissan Versa with 120,000 miles on it. The alternator, battery and starter have all been checked twice and are perfectly fine.
Why is my car running rough in the Cold?
A system that is carbureted that is running smoothly shouldn’t produce too much excessive black smoke, so if this is the case, then this is wrong. Using a carburetor cleaner is a simple step to dissolve these deposits and prevent the car from running a rough idling engine in the cold.
The next time you go to start the engine cold, turn the ignition switch to the run position so the dash lights come on for two seconds, and then turn the ignition switch off. Repeat this a half dozen times and then try starting the engine.
Why is my car so hard to start?
Another common cause of a hard cold start, or poor running while cold is dirty intake valves. Over time intake valves become coated in a black gooey substance. Generally it will be worse if you let your air filter get dirty, and if you use lower grade fuel.