why does my car start but wont stay running

But thicker oil creates more resistance. It could be going bad but the only way to really test it is to pull your gas tank and at that rate you may as well replace it.

Car Won T Start After Getting Gas Rx Mechanic

If the engine cranks but wont start check for spark and fuel pressure.

. If youre asking yourself. Why wont my car start then youre in the right place. It has enough for idle but cant keep up as RPMs increase under hard acceleration.

This might be enough to allow the engine to start but not keep running. Why does my engine crank but wont stay running. A non self-exciting alternator requires 12V power on one lead to stay energized and in operation.

Your car fan will run for a few minutes after you turn off the car then turn it off. You park your car turn off the ignition and start walking away. Engine wont stay running.

The computer simply feeds a little extra gas through the fuel injectors to start the engine. First there are the causes that you dont share with your friends like running out of gas not being in Park or not having your foot on the brake. To get your car started the starter motor has to try to spin all the moving parts of the cold engine oil help lubricate these parts.

There could be a fault in the injection or ignition system a vacuum leak or some other fault. These vehicles can be jump-started without a battery and will continue to run once jumper cables are removed. Some of the symptoms are.

You could have a clogged injector causing the lack of fuel as well. In this case check the fuel pressure from the fuel pump. Hi All I have Mitsubishi lancer 2002 18l auto and having same problems since a year.

If the starter system cant overcome this resistance the vehicle wont. Please post a time and date where we can both be online and you would have the truck with you to do some testing and i will do my very best to be here so we can chat and do the testing. Usually when the engine warms up and then stops it is an indication of a problem with an ignition coil ignition module or even the fuel pump.

Up to 8 cash back The fuel injection system does nothing until the engine is turning starting or running so pressing the pedal before you start will make no difference. Reply to doctor automotives post. Car starts but wont stay running.

The engine requires the right amount of air and fuel to mix together for ignition. Vehicles of this type and a dead or disconnected battery will jump-start off of another vehicle then die the. 4 immobilizer is bad dont think its this one though since car starts 5 try another key.

Why does my car start but wont stay running. If the battery has a weak cell it will produce enough power to run certain things in the vehicle but not the vehicle it self. If there is a fuel leak somewhere then the correct amount of fuel may not make it to the combustion chamber.

A sensor might be faulty as well. Another effect of low temperatures is a thickening of the oil inside your engine which keeps it from flowing as well as it should. Up to 8 cash back When the engine RPM drops below the normal range of about 800 RPM this often times will cause the engine to stall indicating a dirty or faulty idle air control valve.

It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. Thankfully theres a decent chance that the cause is something minor. This describes my Honda and most Chevys.

An engine will start but not run when the fuel runs out. Then car would start but not stay running. My car wont start in the morning just gives cranks but if I press gas pedal it starts and have to keep it until engine gets hot enough.

Can you do the relearn and see if it corrects your problem. Then you notice the engine cooling fan is still running even though the car is turned off. It could actually be the battery.

Why does my car start but wont stay running. If the fuel pressure is not strong enough the car will stall out. I would look at an electronic reason as to why the car is stopping.

Especially around the carb base vacuum fittings etc. The fuel injectors work at any RPM so a choke is not necessary. Check for trouble codes even if you dont see the check engine light on.

Running fine at idle and low speeds around town but struggling and stalling under on-ramp acceleration likely means low fuel pressure. And repeat the problem in the morning when I have to go to work. If your car wont start after running out of gas it could be that the fuel pump was damaged.

I would recommend having an expert from YourMechanic come to your location to diagnose and repair your idle air control valve. IF the pumpwas bad it wouldnt start at all. If it doesnt crank at all check the battery condition.

If it does not you will need a digital volt meter and a test light to do some testing with. Change the filter first. Then the engine starts up again because startup requires little fuel.

I check for vacuum leaks by using an unlit propane torch. On the old carburetor engines you. With the engine running aim the propane gas around areas that might have a vacuum leak.

Car wont start after running out of gas. It will charge at times and at other times it will not. If that carb has an idle speed screw adjust it so itll stay running so you can do some tests.

Then it works for almost all day.

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