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Hey everyone,
So I am having some trouble figuring out whats going on with my 03 2.0 zetec, I drove the car to the store went in for about 30 minutes came out and the engine would crank but not start. It was running a little rough and had a code for the upstream 02 sensor, the sensor has since been replaced but still the engine will crank but will not start. I am getting spark at the wires, the engine was just rebuilt and has compression. After trying to start it a few times, we noticed that cylinder 2 was flooded, cylinder 3 had some fuel in it, cylinders 1 and 4 were dry however the plugs from 1 and 4 did have a faint scent of fuel on them. The car has a new crankshaft position sensor, fuel filter, new spark plugs&wires and new fuel injectors. checked all the fuses in the engine bay box, still cant find what might be stopping it from starting.
 

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An easy check for that is to pull the vacuum line going to the manifold and smell it. If there is any scent of gas the diaphragm is shot. I just sniffed mine today because my cars been having a little sputter at start up after setting awhile. I've had one fail before, the car will start acting like it's getting flooded on start up.
 
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