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Re: no start on 3.4 engine
If your car has spark and runs on starting fluid you have a fuel problem not a cam sensor. 41 lbs of fuel pressure is not enough. Try pinching off the return fuel line and check the pressure. Let me know what you find.
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Fuel pressure tester will tell you. Turn on key see if u can hear it . Could be engine sensor as well see if it starts while with spray bottle spray gasoline straight into throttle body while crankin engine see if it starts
Probably lost either spark or fuel. First try some starting fluid into the throttle body (take off the big air boot) and see if the engine tries to run on it. If it does, you need to see if the fuel pump quit working. Best is to check fuel pressure-autozone and others rent or loan fuel pressure gauges. If pressure is not there with key on, likely a bad fuel pump. (you should hear the pump turn on for 2 seconds when turning the key to on, not start-this will pressurize the lines up to the fuel rail and to the injectors. Listen for the pump to turn on.)
If you have gas up to the engine, and the starting fluid caused nothing, check for spark. Buy a spark tester from a parts store and check for spark on 2 or 3 spark plug wires. If no spark, the ignition system went out. This is often due to the Crank Position Sensor or the Ignition Control Module.
1.= HOW MUCH FUEL PRESSURE DO YOU HAVE?
YOU NEED AROUND 30 TO 45 LBS.
2.= MAKE SURE YOUR FUEL PRESSURE DOES NOT DROP RAPIDLY AFTER YOU SHUT YOUR KEY OFF.
IF IT DROPS REPLACE YOUR PRESSURE REGULATOR.
3.= YUOR PLUGS COULD BE FOULED TOO, IT HAPPENS.
IF YOU DO NOT HAVE ENOUGH FUEL PRESSUR THIS WILL CAUSE YOUR INJECTORS TO RUN RICH.
My 92 Bird with the 3.1 did the same thing after it sat for about 2 months. The car had aways started right away before. I had to jump start it and I thought it would never start.Same as yours after it started. Seem to get better after I ran it awhile. It was getting good spark and was getting fuel. I checked fuel pressure, it seemed to be within specs.then it started to sputter and the pressure dropped to almost nothing. Seems that the fuel pump was going bad, but still would pump enough fuel at times to run. When the car was parked the fuel pressure would bleed off, and when I tried to start it the pump had trouble pumping enough fuel to pressure the system.Long story short! Replace the fuel pump, and filter.....
I assume that you do not have a "check engine" light? The next thing I would do is check the pressure from the fuel pump.You can have this done at your preferred garage, or by purchasing a fuel pressure gauge from any parts store. Vent the fuel tank vapors by loosening the fuel cap.Remove the electric fuel pump fuse and start the engine. Allow the engine to run until it runs out of fuel and stalls.After spinning the engine over for a period of 3 to 5 seconds, turn off the ignition switch and install the electric fuel pump fuse.Next, install a fuel pressure gauge in the fuel rail supply line, and secure the fuel tank cap.With the ignition key in the on position, verify that no leaks are present and start the engine.Visually verify the PSI reading on the gauge.The pressure for your vehicle should be 41-47 PSI (Pounds per Square Inch).Hope this helps and good luck!