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2001 crown vic 4.6l maybe twice a week i go to crank the car and it sputters real bad and eventually dies. After it dies i clean the throttle body and then it runs fine. What is causing this?
Re: 2001 crown vic 4.6l maybe twice a week i go to crank...
I would replace the dle Air Control solenoid. I know its a guess, but its a common thing. when cranking the engine, the idle should flare high, and then slowly down to idle speed.
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Find another mechanic.. First, if the harness is bad, it is almost impossible to diagnose a bad computer. I diagnose cars. I start with power and grounds first. Then check wires for continuity. Check sensor and actuators for resistance. I get 1 hour to do this. Usually do it. Sometime the harness is bad. it requires more time. Being a ford... I would start with cleaning the maf sensor and the throttle body. Look at replacing the fuel and air filter.
Dependent on what year you have. If it has an idle speed motor that could be cleaned as well as the throttle body. Idle speed motor may need to be replaced sometimes a good cleaning hooks them right up.
No if it starts but you have to keep your foot on the gas to keep it running and then it dies when you take your foot off the pedal the fuel pump is working otherwise no gas at all if it was not working the throttle position sensor is bad the contact in the sensor is worn out at idle spot but when you first star it the sensor is in a different position and with your foot on the gas you can keep it running right racing like a normal engine but if no gas peddle it won't run if you just turn the key to start like normal but there's also a possibility that the idle air control valve is shot to both are on the throttle body you can look at them at rockauto.Com I'm assuming that your using premium gas and your throttle body is clean if not clean it out and see what happens before you spend $$$ on parts and check all your vacuum lines
It unbolts from the throttle body and the pipe is screwed into it. But are you sure you need one. They rarely go bad. Usually if you have a check engine light on for the egr valve it is because of a bad DPFE sensor or a plugged passage in the throttle body.
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