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

First check the battery to make sure its not dead. The most problematic one however is a blown gasket.

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Posted on Jul 10 2009.

. Fuel filters will become dirty from debris and oxidation over time and it is recommended that they be changed every 20000 miles. Just wont start when hot but will start when cool. Sometimes the clogged vent lines also lead to vapor lock.

If your car wont start when the engine is hot there are a few things you can do to try and get it going again. The fluid is used to help engage the starter motor but when its gone the motor cant get the necessary traction to start the engine. The engine will not cool efficiently and will heat up as you drive if only the radiator is cooling the coolant.

When the fuel is being boiled in the fuel line it can cause vaporization. Your vehicle is overheated it wont start but it is turning over. Your car is overheated there is no.

Vapor lock can be one of the reasons why your car overheated and now wont start. If the fuel lines are hot under hot weather conditions and a hot engine the fuel will have room to evaporate inside the line creating a hard -to- start condition. Its been 2 months over and over tested that in the warmed up condition loose the fuel valve top of the fuel filter a little gasoline spill put the ignition key to ON position dont see.

Other symptoms of a. My daughters car has not had this problem since. Why wont my car start when the engine is hot.

However the most commonly noted cause for such a problem is the engine coolant temperature sensor. Thats why a dead battery is one of the most common reasons a car wont start in the cold. The most common reason a car is hard to start when warm is due to a defective crankshaft or camshaft position sensor.

The car drives smooth good responses idle RPM is stable. However it could also be caused by a clogged air filter faulty battery connection vapor lock or a bad ground connection. If you are well past this timeframe and your car wont start the fuel filter may be blocking the path to the engine.

Your car is overheated and wont turn on is because of a blown head gasket warped cylinder bad piston valves damaged thermostat corroded battery faulty sensors and seized engine. It can cause an interruption in the flow of the fuel. Warped melted wires.

Anyway replacing the main relay worked. Ideally the coolant temperature sensor should allow less fuel to be injected into a hot engine when it starts but if the sensor is not working correctly it will not be read the right. This of course will make it more difficult for your car to start.

A common reason for this may be a clogged fuel filter. When your car overheats and it won start you may encounter two types of situations including. If your engine gets too hot certain vapours can cause obstructions which can make it harder for fuel to circulate.

I recommend having your vehicles no start and running hot issue be diagnosed and repaired by a certified technician such as one from. Hard warm starts can also be traced to a leaking fuel pressure regulator FPR or fuel injector. When the heater core is faulty or clogged the radiator cannot cool the coolant coming from the engine.

Its been 2 months over and over tested that in the warmed up condition loose the fuel valve top of the fuel filter a little gasoline spill put the. When Cars Wont Start Its Often Because Their Engine Oil Has Thickened In The Cold Which Increases Friction And Makes It Harder For The Starter Motor To Spin The Engine. The unfortunate fact is an overheating situation like yours can often total a car.

When the cabin temperature dropped the solder would cool and reconnect. Car will keep running for long miles smoothly if dont shut off the engine. At the same time motor oil and other fluids thicken requiring more battery power to start your vehicle than on a warm day.

Up to 8 cash back The engine running hot could be any number issues ie. Any one of these issues can your engine not to start and they are all very serious. If your car is hard to start when warm it could be due to a few different reasons.

Therefore the engine receives hot coolant from the radiator. Apparently the solder used in the original main relay was poor and would actually soften in the heat and cause a disconnection. This isnt really a problem with newer models as most new cars are fitted with fuel injectors.

Water pump restricted radiator thermostat replaced already inoperative cooling fans restricted exhaust ie.

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