Who did the water pump replacement? Replacing the water pump required the removal of the timing chain. If, during the removal and replacement of the timing chain, the camshaft sprockets were not doweled into place, they would need to be rotated to regain proper timing. If the crankshaft was not properly positioned when this was done, or was rotated too far or in the wrong direction, severe damage to the valves and pistons would have occurred. This would result in no compression and the vehicle not starting. I would pull the plugs and do a compression check before anything else. If the compression test fails, you need to pull the engine apart and prepare for some hefty expense for repairs.
Testimonial: "The cars had the water pump replacement done 3 1/2 months ago and had been working fine. When I took it to a shop when it first decided not to start, they said it started for them and so they couldnt tell what was wrong. When the had the car they ran a check on the furl pump and said it checked out, but now the car wont start again. It just tries to turn over but wont start."
SOURCE: 2003 Chevy Cavalier not starting
When you turn the key, you should hear the fuel pump make a whiring noise as it dispenses the fuel. If there is no noise. the fuel pump is not working.
Have you checked the fuel shutoff inertia switch.?
Check your owners manual for location.
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