1996 Chevy Monte Carlo Automatic 164000 miles
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the service engine soon light is on, and the car also has difficulty starting up most of the time. After it finally starts up, I sometimes smell exhaust fumes. I took it to a place where they checked why the engine light was on, and I was told it was because of the EGR Valve. is this really what is wrong with the car?

if it is stuck open yes it very well could be your problem