Chevrolet Cars & Trucks - Recent Questions, Troubleshooting & Support
07 aveo will turn over but not start. checked the fuses, what else?
Fuel supply check is first. Locate the fuel line port that looks like a tire valve stem and is running to each cylinder, remove the cap and release the pressure with a screwdriver. If the fuel is present it will squirt out so watch your eyes. If no fuel, check to see if you can hear the gas pump start when the key is turned to the run position. Remove the gas cap and have someone turn the key so the dash lights come on. You should hear a whirring sound that will shut off when the pump pressurizes. If you don't have pressure in the line and you don't hear the whirring, your fuel pump or relay should be checked. If you have fuel pressure in the line, Spark is the next thing to check. Pull a wire off one of the spark plugs and see if you have a spark to ground. (You put a screwdriver in the end and without your hand touching any metal, move the metal close to the engine and have someone crank (tap) the engine. IF you have several coil packs, check each one. If you have spark and fuel, the last thing that I would do is find the fuel pump relay under the hood in the fuse box. And pull it out. Crank the engine. Don't be surprised if it starts. Put the fuse back in. If this works your fuel pump is going. If it still doesn't start, I would look at replacing the cam position sensor.
Hope this helps.
5 hours ago
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