why does my car start but wont stay running

You could have a clogged injector causing the lack of fuel as well. Then the engine starts up again because startup requires little fuel.

It Can Be Incredibly Frustrating When Your Vehicle Won T Start It Can Be Even More Frustrating Trying To Figure Out Car Maintenance Automotive Mechanic Repair

CAR WILL START WONT STAY RUNNING.

. 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. Have replaced the fuel pump throttle position sensor mass airflow sensor - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. I would recommend having an expert from YourMechanic come to your location to diagnose and repair your idle air control valve.

It could actually be the battery. 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 the engine cranks but wont start check for spark and fuel pressure.

The computer simply feeds a little extra gas through the fuel injectors to start the engine. But thicker oil creates more resistance. Can you do the relearn and see if it corrects your problem.

Why does my car start but wont stay running. Answer 1 of 29. This describes my Honda and most Chevys.

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. It has enough for idle but cant keep up as RPMs increase under hard acceleration.

Car will start but wont stay running why - Ive replaced the fuel pump twice7 fuel filters 2 strainers idle air controller maf sensor spark plugs an. 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. When you step on the accelerator while starting the engine this opens the throttle plate which allows air into the.

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. Car starts but wont stay running. The fuel injectors work at any RPM so a choke is not necessary.

Asked by sissy195306 Jul 02 2007 at 1124 AM about the 1994 Pontiac Firebird. THE CAR WILL START RIGHT UP FOR ABOUT 2 SECONDS AND THEN JUST DIE. If that carb has an idle speed screw adjust it so itll stay running so you can do some tests.

An engine will start but not run when the fuel runs out. 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. These vehicles can be jump-started without a battery and will continue to run once jumper cables are removed.

In this case check the fuel pressure from the fuel pump. There are several reasons why a car wont start with jump. WE REPLACED THE STEERING COLUMN NEW STARTER AND NEW FUEL FILTER.

IF the pumpwas bad it wouldnt start at all. Running fine at idle and low speeds around town but struggling and stalling under on-ramp acceleration likely means low fuel pressure. I check for vacuum leaks by using an unlit propane torch.

It will charge at times and at other times it will not. Especially around the carb base vacuum fittings etc. 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.

Another effect of low temperatures is a thickening of the oil inside your engine which keeps it from flowing as well as it should. A non self-exciting alternator requires 12V power on one lead to stay energized and in operation. Vehicles of this type and a dead or disconnected battery will jump-start off of another vehicle then die the.

With the engine running aim the propane gas around areas that might have a vacuum leak. Change the filter first. Consider taking a deep breath and walking through some troubleshooting steps to find out why the car wont start.

This valve allows the engine to idle under all conditions. On the old carburetor engines you. Up to 20 cash back My car will start but wont stay running.

Car starts but wont stay running unless foot is on gas. If it only starts for 2 seconds you have triggered the security system and need to do the relearn or the fuel pump system is not working lkie it should. If the fuel pressure is not strong enough the car will stall out.

Engine wont stay running. If the starter system cant overcome this resistance the vehicle wont. If this valve fails to allow air into the engine the engine wont idle.

Solved My Lawn Mower Won T Stay Running What S Wrong With It