why won't my car start when the engine is hot

That wouldnt cause the car not to start when the car it hot. If the engine has already overheated open the hood and let your engine cool off.

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Occasionally it simply wont start when its hot out or if the engine is warmer than usual because of driving uphill etc.

. You may not see this quickly but after the battery is drained and you cant start the engine. Up to 8 cash back From the description you have provided your vehicle will crank but will not start needs to be properly diagnosed. Your car wont start if the cable connections on.

I simply wait a little while never more than 5 minutes usually only 1 or 2 minutes and it fires right up. Thats why a dead battery is one of the most common reasons a car wont start in the cold. Problem 1 can be attributed to a lot of things.

If theres nothing wrong with your coolant levels your motor oil or your battery and your car still wont start in hot weather it could indicate a deeper issue with your engine. This happens all of the time when it gets hot so why worry. As others have said in older cars there were issues with vapor lock ie.

Its cranking but not starting. However it could also be caused by a clogged air filter faulty battery connection vapor lock or a bad ground connection. The car drives smooth good responses idle RPM is stable.

Do not attempt to pour water whether hot or cold on the engine. Another reason why warm engine stalls is a failing alternator. Car wont start when engine is hot.

When the engine is too hot fuel cant circulate properly due to the way in which vapor obstructs it and therefore the engine wouldnt start as easily as it should or it wouldnt start at all. If the engine turns over but does not start the problem might be with the fuel supply. Honda Civic 2005 17L engine - does anyone know why my car wont start I was driving on the highway and my car just randomly shut off.

A fuel pressure test is recommended. Not usually an issue with newer cars with electric in-tank fuel pumps. Most of the reasons by which a hot engine would be hard to start are based on problems related to the fuel.

But you dont want to overlook the possibility of a bad starter or trouble with the fuel system either. Car batteries contain sulfuric acid that can cause serious burns. Replacing parts without diagnosing can be costly and time consuming.

The most common reason a car is hard to start when warm is due to a defective crankshaft or camshaft position sensor. Always wear gloves and eye protection when working around a battery or jump starting a car. Injector pump and or injectors or collapsing or leaking fuel lines when hotthere is also a slight chance that the valves are set too tight and when hot do not close properly but the chance of multiple cylinders to have the same problem is slim if it is only.

After it runs to normal operating temperature park and turn off engine for a few minutes it wont start the engine regardless how long the starter cranks until at least 40 minutes later when everything cools down then it will start again. If theres nothing wrong with your coolant levels your motor oil or your battery and your car still wont start in hot weather it could indicate a deeper issue with your engine. Never attempt to jump start a frozen battery it can explode.

A mechanic will use a voltmeter to analyze the power level. Honda Civic 2005 17L engine - does anyone know why my car wont start I was driving on the highway and my car just randomly shut off. The fact you got the engine to start after replacing the fuel filter leads me to believe the fuel pump could be faulty.

Youll be putting the engine block at the risk of cracking and nobody loves a cracked engine block except the mechanic. The fuel in a line that got hot and vaporized the fuel such that the fuel pump could not draw enough fuel due to the bubble in the line. Working on a hot engine will result in severe burns on your skin.

Your coolant temperature sensor might be broken for instance which means that the engine will think its hotter than it is. Posted by 8 minutes ago. Ideally these filters should be changed every 10000 to 15000 miles to prevent them from getting clogged.

Why wont my car start when its hot. Related questions 0 votes. If the battery doesnt pass the test you dont have a good battery and will need to replace the dead or weak battery.

Your coolant temperature sensor might be broken for instance which means that the engine will think its hotter than it is. Continue reading below Our Video of the Day. Reasons That Can Cause Hard Starts When Warm Coolant Temperature sensor Symptoms Of Bad Engine Coolant Temperature Sensor Faulty Spark plugs Symptoms Of Bad Spark Plugs Clogged Air Filter Symptoms Of Clogged Air Filters Bad Fuel Pump Symptoms Of Faulty Fuel Pump Corroded Battery Terminal Symptoms Of Corroded Battery Terminals.

Tips for starting the engine in hot temperatures. If its damaged an alternator will no longer charge the battery and increased engine temperatures will rush the charging problem. Ask you shop to check this.

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