Why do I have to keep my foot on the gas to keep my car running?
Check fuel pressure. There are only three possible explanations: a fault in fuel supply (plugged filter, injectors, etc.); ignition system problems; and air induction including the idle air control valve, throttle position sensor, mass air flow sensor and vacuum leaks including the PCV and EGR systems.
When I take my foot off the gas the car dies?
The engine dies when I take my foot off of the accelerator. If they are fine then the throttle body should be cleaned. If it is dirty it can starve the engine of air at idle. If nothing turns up there then you may have a bad idle control valve or air flow meter.
What is the symptoms of bad fuel pump?
Seven Signs Your Fuel Pump Is Going Out
- Sputtering Engine. Your fuel pump is telling you something if your engine starts to sputter once you’ve hit the top speed on the highway.
- Overheating Engine.
- Low Fuel Pressure.
- Power Loss.
- Surging Engine.
- Gas Mileage Decrease.
- Dead Engine.
How can you tell when your fuel pump is going out?
Why does my car not start when I take my foot off the gas?
The fuel injectors work at any RPM, so a choke is not necessary. The computer simply feeds a little extra gas through the fuel injectors to start the engine. On the old carburetor engines, you pressed the gas pedal before starting to set the choke position and give a squirt of fuel into the engine via the accelerator pump.
What to do if your car won’t start unless you give it gas?
Resolving car won’t start unless I give it gas problem To diagnose the fuel pump, an amp clamp is placed over the positive pump-wire. Next, start the vehicle and use a voltmeter to set and record the amperage reading. Then, compare the recorded readings to the manufacturer’s defined specification.
What causes a fuel pump to die at idle?
A clogged filter for example can be overcome with excessive throttle that drives the fuel pressure up enough to force it through, but it will barely trickle at idle and stall. Usually the dead give away for fuel pump is when someone complains they have to floor it as soon as it turns over or it will die right away… ick! Click to expand…
What causes an engine to stall at idle?
Sometimes when a engine requires excessive revving and throttle to stay afloat its a fuel supply problem. A clogged filter for example can be overcome with excessive throttle that drives the fuel pressure up enough to force it through, but it will barely trickle at idle and stall.