car has trouble starting after being driven

IMO you have a bad battery or a bad starter. After twenty or thirty minutes sitting it will start again.

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Answer 1 of 33.

. I am also assuming that your car runs fine once it gets moving. So here is my diagnosis and action to take. Up to 8 cash back Usually if you have a malfunction that prevents the car from starting there will be a code resulting.

However about 10 to 20 minutes after shutting it off it sometimes has a hard time restarting and running. After a half hour the engine just happens to get to a good starting temperature. As far as cold vs warm start just a guess but whatever component is having an issue must be being affected by the raised temperature from the engine saturating it making it not perform as well.

A Bad Head Gasket Might Be Why Your Car Wont Start. Squirt a small amount of oil into the cylinders to lubricate the rings. When you start your car without driving it or only take a short trip around the block your vehicle wont reach its full operating temperature.

Both of these have a history of failing when they are hot and coming back to life again when they are cold. Pump a small amount of the gasoline out of the car and into a clear container. Engine in neutral by hand wrench try to turn the crank.

Flat faulty or dead battery. The battery wont restart the car and youll be stuck. When you shut off a warmed up engine fuel pressure needs to remain in the fuel lines otherwise you will get vapor-lock this is when the liquid fuel turns into a gas in the fuel line and a fuel pump can only pump liquid not gas so the engine will not start until the fuel cools down and turns back into a liquid.

The easiest way to do this is to grab a friend or family member so one person can activate the. A jump start should revive the battery but keep jumper cables handy for the next time you try to start the car just in case the problem lies elsewhere. Thats a big load.

Since adding throttle helps perhaps something with air or fuel delivery. When starting the battery has to turn the starter fire the ignition and fire the injectors. One last thought you really need to check for spark and fuel to eliminate things.

Just a little off and the engine wont start. If the pumped-out gasoline separates into. It is also possible that you have a vacuum leak.

Also check for an RPM signal via your scanner to determine if it is related to the crankshaft position sensor. It should be in the 135 to 155 volt-DC range. Let the gasoline sit for approximately five minutes so it can settle.

For this answer I am going to assume that your car is older with a carburetor rather than having electronic fuel injection that is now common in almost all cars. This would explain many of the idling issues you are facing but not the inability to start the car while holding the gas pedal. Before starting your car after it has sat idle for a long time be sure to check your engine oil level.

It can also be caused by a bad starter but if it cranks but wont start it could be caused by a faulty spark plug or a clogged fuel filter. Also check to see what temperature the coolant temp sensor CTS it indicating the coolant to be when this happens and the engine is hot. If your alternator is going bad then it will no longer be able to charge your battery.

If you cant get it to turn try putting the vehicle in. If it cranks but does not start sometimes a temperature sensor is bad and the computer cant figure out the proper amount of fuel to inject. If so measure the amount of AC ripple coming from the alternator by changing the meter from DC mode to AC mode.

If the starter is bad and takes more power to spin when hot that takes power away from the ignition and injectors which will make it harder to start. Of course its better to drive your car than to leave it sitting. It starts fine after it sits and cools about half an hour after it is being driven for at least 20 miles or half hour.

I can drive ten or fifteen minutes park the car and try to start it. One thing you can try is when it wont start spray starting fluid into the intake to see if that at least gets it firing until the vapor from that is gone but the better method is the more. Battery problems can quickly arise from alternator problems.

The most common reason a car wont start is due to a dead car battery or loose car battery terminals. This may be from a fuel pressure issue. That said ICVs are easily fouled by oil from the crankcase ventilation if it doesnt go straight into the manifold.

Check that your headlights fog lights high-beam lights brake lights reverse lights and indicators are all working before you head out on the road. Youll start your car drive for awhile and your car will die. Check All Exterior Lights.

That being said it sounds like you may have an issue with a crank position sensor or an ignition control module. Most auto parts stores will test a battery for free to see if it has enough voltage and cold-cranking amps to start the engine. Theres probably close to a mile of wiring in your car and with the harness being changed out you may have some major sleuthing in head of you until you find all the problems.

Cleaning the ICV may help. 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. Among serious problems like blowing smoke from the tailpipe and leading to the engine overheating a bad head gasket can also make it difficult to start your car.

This leaves condensation in the exhaust and oil which wont be burned off and can cause damage in the long run. The car cranks strong but wont start. The Check Engine light goes on and it.

I tend to run errands on the weekends so this is when I realized something was wrong. The batterys usually the main culprit behind issues with starting your car. That could be anything under the hood though.

The fabled blown head gasket isnt something anyone wants to deal with.

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