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

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 any more. Corroded or loose engine ground connection.

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Could be a bad relay 2.

. Symptoms Of Bad Spark Plugs. Why wont my car start when the engine is hot. A bad or failing high-pressure pump.

Answer 1 of 23. Ignition problems are also responsible for a hard or no engine start. These problems can be due to problems with the starter motor or circuit.

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. A fuel pressure test is recommended. 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.

But you dont want to overlook the possibility of a bad starter or trouble with the fuel system either. Your car wont start if the cable connections on. If the battery doesnt pass the test you dont have a good battery and will need to replace the dead or weak battery.

However it could also be caused by a clogged air filter faulty battery connection vapor lock or a bad ground connection. Could be a bad battery or battery connection or alternator 3. Symptoms Of Bad Engine Coolant Temperature Sensor.

Corroded or loose battery terminal or cable. Answer 1 of 12. If your car is hard to start when warm you can trace the issue to one or more several potential faulty components.

A faulty fuel pressure regulator. Occasionally it simply wont start when its hot out or if the engine is warmer than usual because of driving uphill etc. The most common reason a car is hard to start when warm is due to a defective crankshaft or camshaft position sensor.

Never attempt to jump start a frozen battery it can explode. Car will keep running for long miles. When you turn the key - do you hear a click - and then NOTHING.

A mechanic will use a voltmeter to analyze the power level. Car wont start when its hot outside My 1991 honda accord will not start when its hot outside. Car Wont Start When Hot Tips for Getting Back on the Move.

Car batteries contain sulfuric acid that can cause serious burns. Your coolant temperature sensor might be broken for instance which means that the engine will think its hotter than it is. Just wont start when hot but will start when cool.

Always wear gloves and eye protection when working around a battery or jump starting a car. I simply wait a little while never more than 5 minutes usually only 1 or. Reasons That Can Cause Hard Starts When Warm.

The car drives smooth good responses idle RPM is stable. Up to 8 cash back From the description you have provided your vehicle will crank but will not start needs to be properly diagnosed. Most of the reasons by which a hot engine would be hard to start are based on problems related to the fuel.

Continue reading below Our Video of the Day. Symptoms Of Clogged Air. Every truly crappy day begins with a car that.

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. Diesel engines only need fuel air and compression to run With that in mind almost all hot-crank-no-start issues are due to the injection pump as the pumps get worn tolerances increase and with thermal expansion they no. Table of Contents.

Any question of this sort MUST be more specific if you want a good answer. The fact you got the engine to start after replacing the fuel filter leads me to believe the fuel pump could be faulty. Check your coolant levels If theyre too low its time to top up your coolant.

Its best to do this when your engines cool to avoid scalding yourself and its vital that you dont overfill your coolant levels. Follow the instructions on the container as it. Thats why a dead battery is one of the most common reasons a car wont start in the cold.

Vapor lock in the fuel system. Turn on the hazard lights then place warning triangles behind your vehicle to alert other drivers. Engine control system problems.

The starter has some brushes that wear out over time naturally and adding excess heat can lead the engine not to start. Why wont my car start when its hot. Replacing parts without diagnosing can be costly and time consuming.

Ive been working - Honda 1992 Accord question. If you can drive for a bit turn the AC more and crank up the heat. When you turn the key - do you get NOTHING.

If the engine has not turned off find a place to park your car at the side of the road.

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