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2006 Chevrolet Cobalt LS 2dr Coupe

2006 Chevrolet Cobalt
Trim Info:
Front Wheel Drive, 2 Door Coupe, Compact
25 mpg city / 34 mpg hwy
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August 21, 2013, 12:13 pm

Brian H

Question: My car won't start?

My 2006 Chevy Cobalt will not start. It turns over but will not ignite. After changing the spark plugs it started hard and didn't sound like it was getting a lot of power. After an hour it will not start. Any recommendations?

August 21, 2013, 5:58 pm

Richard W
Expert Mechanic

Take some carb cleaner and spray it into the intake system. If the car starts you have a fuel issue. If it does not you have a ignition problem. Make sure all the fuses are good. That is a quick way to tell what system has a problem. If not start with carb cleaner check for spark at the spark plug. If you don't have spark you need to take it to a shop. You need a lab scope from here to find out what's wrong. If the car starts with carb cleaner you need to check the fuel pressure. Some parts store will loan you a fuel pressure gauge. The fuel pressure should be around 35psi. Also you could crank the engine and hit the gas tank with a rubber hammer to see if it will start. If it does you need a fuel pump. If you don't have 35psi you need a fuel pump.

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