SOURCE: will crank but won't start
I have seen a lot of trouble with coil packs lately. The first thing I would do is put a coil back on that I knew would make the motor run. It would not surprise me to hear that the new one is also bad. I don't think I would buy a new one until I was sure that the one on the car is bad. my suggestion is a no-cost method to know for sure.
If that does not work I would get a gauge and check the fuel pressure.
Also check to see that the timing belt is not broken. Look in the oil cap filler to see if the valve train moves while someone cranks the motor.
This will keep you busy for a while. Let me know what happens.
SOURCE: 2005 Crown Vic Police Interceptor: Starts then stalls
Have you checked the fuel filter. Fuel pump will pressure up, but fuel filter could be clogged and not work without the pressure of the fuel pump.
SOURCE: 2007 crown vic 4.6 l idles high on startup
This sounds like a normal condition.What happens is the cold start emission reduction component monitor(software program in the computer) is running.
Cold Start Emission Reduction Component Monitor
The Cold Start Emission Reduction Component Monitor was introduced for the 2006 MY on vehicles that meet the
LEV-II emission standards. The monitor works by validating the operation of the components of the system
required to achieve the cold start emission reduction strategy, namely retarded spark timing and elevated idle
airflow.
When the CSER strategy is enabled, the idle air control system will request a higher idle rpm, elevating engine
airflow. While this CSER elevated airflow is requested, the low airflow test compares the measured idle airflow from
the MAF sensor to the commanded idle airflow from the idle air control strategy.
SOURCE: My 99 Crown Vic acts like it isn't getting gas
check for clogged fuel filter first, usually the pump works or it dosen't, check and get back to me.
SOURCE: car dies when accelerate. do i need new fuel pump?
Hello;
It sounds from your description that the fuel pump is weak. To check the fuel pressure you need a fuel pressure test gauge for fuel injection. Attach the gauge to the test port schrader valve and turn the ignition to the on position. Record the reading. Now start the engine and record that reading. Unplug the pressure regulator vacuum line and record the reading.
The pump should have pressure with in specs but if low, start with the installation of a new complete pump. It is located in the fuel tank. Also replace your fuel filter.
Hope this helps you.
Thanks;
Rich
RPM Northwest
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