car starts but wont stay running unless foot is on gas

Drive for a few minutes letting up on the the accelerator pedal often so that the computer learns what it takes to keep the engine running. Its the IAC idle air control setting that was lost when the battery went dead.

What To Do When Your Engine Won T Stay Running

Car Starts but wont stay running RPM Up and Down.

. Next start the vehicle and use a voltmeter to set and record the amperage reading. BMW ACURA Honda Lexus Toyota. This valve allows the engine to idle under all conditions.

A No codes. The ECU will relearn the idle settings after a short period of driving and the engine will start and idle normally. If it is low look at the fuel pump fuel pressure regulator and injectors.

Once the battery is charged and its the first time you start it hold the throttle open slightly. Sometimes when a engine requires excessive revving and throttle to stay afloat its a fuel supply problem. The fuel injectors work at any RPM so a choke is not necessary.

B CPS is brand new if it is faulty it wont allow the jeep to even turn over. E Engine now hates to start after stallingI have to have my foot on the gas and it cranks longer than usual. Car wont stay running unless foot is on the gas.

A clogged filter for example. Up to 8 cash back Hi There It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate. Some of the symptoms are.

The problem might be with a defective Idle Air Control valve. 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. C Never been tested but have never had a problem with itShould probably test it though.

Then very slowly lift your foot to let the rpm drop keeping enough throttle for it not to stall. Check for fuel pressure on the fuel rail on top of the engine with the engine off for at least a few minutes press the nipple in with a rag. On the old carburetor engines you.

I think this is what it is called go bad and it wouldnt idle unless I had my foot on the gas. Then compare the recorded readings to the manufacturers defined specification. When you step on the accelerator while starting the engine this opens the throttle plate which allows air into the engine.

The computer simply feeds a little extra gas through the fuel injectors to start the engine. If this valve fails to allow air into the engine the engine wont idle. 1 day agoThis could be from not receiving enough fuel pressure to keep it running.

Usually what happens is you start the car cold and it wont stay running unless you hold your foot on the gas until the engine warms up. For fuel issues start by checking the fuel pressure. Usually what happens is you start the car cold and it wont stay running unless you hold your foot on the gas until the engine warms up.

Common Reasons a Car Starts Then Shuts Off 1 Bad Idle Air Control Valve 2 Bad Vacuum Leak 3 Dirty or Faulty MAF Sensor 4 Ignition Issue 5 Bad CamshaftCrankshaft Position Sensor 6 Slipped Timing BeltTiming Chain 7 Fuel Pump Leak 8 Fuel Injection Sensor Issue 9 Bad Carburetor 10 Bad Ground Strap 11 Engine Control Unit Issue Conclusion. Once it starts hold the rpm at about 1200 for a few seconds. Car Starts but wont stay running RPM Up and Down.

This is controlled by the cars ECM which uses this information to make adjustments to the airfuel ratio. The idle air control valve is a small valve on the engines intake system that reads the air intake as it comes into the motor. Suppose theres an obstruction within the trail of airflow into the combustion cylinders.

Withoutknowing if the check engine light is on it could be a variety of things including but not limited to the o2 sensor throttle positioning sensor and the MAF and MAP sensors. Up to 25 cash back gas peddlerevvedcranking it over it is either gas or exhaust Hard to start have to pump gas peddle and keep revved up to keep it runningThen it will run good until you shut it off Doesnt matter if. Withoutknowing if the check engine light is on it could be a variety of things including but not limited to the o2 sensor throttle positioning sensor and the MAF and MAP sensors.

This might be due to the residual debris within the air inlet or another obstruction within the car air passage. Often in a situation like this relearning is whats needed. Replace them andor clean the cap out.

There are six major problems that make the car wont stay running unless foot is on gas. If the engine get close to quiting press on the accelerator just enough to keep it going. Read more Nelson Garcia Vocational Technical or Tra.

Car wont stay running unless foot is on the gas. Up to 25 cash back ok. Replace if any issues are found.

Next would be electrical- youve got a distributor cap and plug wires that can be arcing. Resolving car wont start unless I give it gas problem To diagnose the fuel pump an amp clamp is placed over the positive pump-wire. If water doesnt move or suddenly rushes into the radiator then you probably have a problem with the.

BTW with our fuel injected engines you dont give it gas. Usually what happens is you start the car cold and it wont stay running unless you hold your foot on the gas until the engine warms up. Make sure the connections are tight and the wires arent cracked or burned looking.

Car wont stay running unless foot is on the gas. Best diagnosed by using an OBDII scanner to scan for codes. You should should get some gas out easily.

This issue could be caused by an insufficient amount of fuel reaching the combustion chamber. D RPMs did not spike. Ad Certified Mechanics Diagnose Problems Troubleshoot Issues in Minutes.

Car wont stay running unless foot is on the gas. When you start the engine it wont run at a steady rate. 1 having difficulties starting the engine without depressing the gas pedal and 2 the engine will have a low idle and probably stall unless you keep your foot on the gas pedal.

Some of the symptoms are. No strong acceleration is needed here. This is usually caused by the idle air control valve sticking.

Car Won T Stay Running Unless Foot Is On Gas The Grumpy Mechanic