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

Wait 10 minutes good to go until it got warm. The ASS guys suggested to change the starting motor the local mech suggested to clean the starting motor brushes but then finally when I matched the battery rating with figures given in my IKONs manual I found out that it was batteries that were the culprit.

My Car Is Hard To Start When Warm Axleaddict

When your new car engine is too hot fuel cannot circulate well due to the way vapor obstructs its workings and therefore the engine just will not start as it should.

. The first thing Id probaby check is the engine coolant sensor. Car wont start when its hot outside. Besides the fuel lines freeze and when condensed with the change in temperature only water is left everywhere.

I recommend having your vehicles no start and running hot issue be diagnosed and repaired by a certified technician such as one from. One of the top reasons for having a car that wont start typically points back to the battery. Start engine and check for fuel leaks.

If it is inaccurate when hot but ok when cold the computer will not inject the correct amount of gas when the engine is hot and the car wont start. As others have said in older cars there were issues with vapor lock ie. FUEL SYSTEM PRESSURE TESTING Before servicing fuel system components fuel system pressure must be released.

Drove to the mechanic who replaced the sensor. The car drives smooth good responses idle RPM is stable. Just wont start when hot but will start when cool.

If the engine turns over but does not start the problem might be with the fuel supply. You have said the engine overheated at one point. You can do a very simple evaluation for engine damage.

This is used by the computer to determine the amount of gas to inject. Then go and get a high quality engine coolant. Plus the cold weather can make the dying battery fail even sooner.

The most common reason a car is hard to start when warm is due to a defective crankshaft or camshaft position sensor. Moreover in normal days water could be filled in fuel lines while car washing or something else. High resistance in the cabling to the starter gets worse when hot high resistance equals lower voltage check and clean your connections and possibly replace the cables.

Remove one spark plug wire at a time and check for spark on the engine with a spark tester tool. Fuel with low alcohol or using the premium fuel is the only one solution to stop the fuel lines to freeze. If your engine gets too hot certain vapours can cause obstructions which can make it harder for fuel to circulate.

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. Wait about 15-30min and it would start in one crank. Before you condemn the starter as bad you should perform a system diagnosis of the battery cables and starter.

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. Water pump restricted radiator thermostat replaced already inoperative cooling fans restricted exhaust ie. This of course will make it more difficult for your car to start.

If the tool is adjusted to 30 thousandths and the spark starts jumping around then the coil. Good thing I had a service manual in the car and a calculator. However it could also be caused by a clogged air filter faulty battery connection vapor lock or a bad ground connection.

A car engine would keep on gaining temperature until a while after it was shut off. 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. Go to this link for a picture and location.

Up to 8 cash back The engine running hot could be any number issues ie. It is a small box about 1 wide by 2 length by 1 depth. Up to 8 cash back It sounds like the ignition coils are getting hot and when the engine is shut off the engine will not restart due to an ignition coil that will not produce a spark.

Problem 1 can be attributed to a lot of things. When the temperatures dip down the chemical reactions happen slower. Remove fuel pressure gauge and reinstall fuel lines.

However a defective ICM could cause erratic powerground voltage to the sensor leading to inconsistent crank readings. A defective sensor wont transmit the correct reluctor wheel signals back to the ICM and ECM causing improper or no spark leading to engine stalling or misfires. This isnt really a problem with newer models as most new cars are fitted with fuel injectors.

Car struggling to start when hot Tuesday March 29 2022 Edit. If your starter easily cranks a cold engine but drags or cranks very slowly when hot there may be a heat soak problem. To relieve pressure proceed as.

Refer to steps 1 through 3 above. Probably some nasty damage to the engine. Cold temp would start fine and the moment it got warmdied.

Disconnect battery then put a socket and ratchet on the crank-bolt and turn the ratchet clockwiseit should move with some. Pouring wrong oil in your car is like feeding wrong food to a kid. Car will keep running for long miles smoothly if dont shut off the engine.

There is a relay box located up underneath the drivers side dash. Could be any of an assortment of problems. It should be 9 to 13 psi.

Inside the battery chemical reactions must occur for there to be enough juice. Start engine and observe fuel pressure. I was near a Radio Shack and picked up 2 thermistors put them together plugged them in and tie wrapped it the engine block.

Relieve fuel system pressure. The most common reason why a hot engine will not start is because the problem is related to fuel. The car cranks slowly slow enough that it wont start.

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 one or two valves that leak the engine.

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