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

Flat faulty or dead battery. When you are looking for outstanding service with a great price.

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Ill have to crank it for a while.

. 0 answers 88 views. Now you see why the engine has a hard time cranking over until the engine cools down only this time its the hot engine expanding the cold air fuel mixture. In fact battery problems were the cause in over half of the cases 55 where our Patrols were called out to a car that wouldnt start There are a few ways your battery might go flat or even die.

However a defective ICM could cause erratic powerground voltage to the sensor leading to inconsistent crank readings. The other reasons could also be the battery the starter the alternator or a bad ground wire or battery cable connection. Car wont start when engine is hot.

For example you would have kept the headlights on while parking and forgot to turn them off. My 2000 Expedition runs good but if I drive it to the store and turn it off when I get back in and turn the ignition only the dash and radio come on but no engine or clicking noise like a starter. Ad We service vehicles of all makes and models whether it is foreign or domestic.

If your engine gets too hot certain vapours can cause obstructions which can make it harder for fuel to circulate. Why wont my car start when its hot outside. Top reasons why cars wont start 1.

Up to 8 cash back The car started running hot now I can not get it to start. If the car makes a rapid clicking sound when you turn the key but wont start it could be the battery. The first thing Id probaby check is the engine coolant sensor.

Car runs great however recently when it has been very hot outside the car wont start it will start as a low idle then eventually get only the click as it tries. There is a relay box located up underneath the drivers side dash. This of course will make it more difficult for your car to start.

Related questions 0 votes. The batterys usually the main culprit behind issues with starting your car. There is no water in the oil I have already checked and changed the oil.

I have replaced the spark plugs plug wires fuel filter thermostat crank positioning sensor coolant temperature sensor and oil. Why will my Pathfinder will not start when engine is warmhot asked Aug 15 2017 by sally. Before you condemn the starter as bad you should perform a system diagnosis of the battery cables and starter.

But on days that I drive to work and park the car at the end of my shift the car wont start and has taken various tines anywhere from 45 minutes to 4 hours to start. 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. 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.

This could cause your car battery to drain. A car engine would keep on gaining temperature until a while after it was shut off. Your car battery can drain due to many reasons.

The only real way of diagnosing a car that wont start is by having a mechanic actually check all its components but one sure way of knowing that the key may be at fault is if you dont hear any sounds when you try to start the car. Could be any of an assortment of problems. Runs perfectly when it does.

Every morning my car starts no problem. If its too hot I have to open the hood then crank it for a little. Im not sure what to check it seems to only happen when it is very hot inside the car.

Car wont start when its hot outside. I always have to leave the hood open for 20 minutes to cool the engine down and then the car starts with no problem. 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.

Asked Jun 17 2018 by anonymous. Car will keep running for long miles smoothly if dont shut off the engine. Why wont my vw jetta start when its hot from the sun just sitting there.

The car drives smooth good responses idle RPM is stable. If a car will not turn over but the lights and radio still work the problem is either a bad starter motor or a faulty ignition switch. Just wont start when hot but will start when cool.

This isnt really a problem with newer models as most new cars are fitted with fuel injectors. It is a small box about 1 wide by 2 length by 1 depth. Go to this link for a picture and location.

The car wont start but lights come on. If your starter easily cranks a cold engine but drags or cranks very slowly when hot there may be a heat soak problem. Probably the most common reason why a car wont start is dead battery.

Ok so normally it seems that peoples cars wont start when its cold but my car does not like to start when it gets HOT. This is used by the computer to determine the amount of gas to inject. If the engine grinds but doesnt turn over this usually means you have a weak battery.

I have replaced all the fuses the fuel relay and it still happens. 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. Give us a Call.

If i go for a long drive and the car gets up to temp middle of the gauge and then i stop to go in a store and come back within 5 minutes it will not start back up. It has driven from northern California to Las Vegas San Diego and LA and back without overheating once.

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