If your EVAP purge valve is bad, it should have also thrown a code. If you would like to test it yourself follow the link below. A hard start is a symptom of a bad purge valve, especially after you fill up at the pumps. http://www.samarins.com/glossary/purge-valve.html
You may want to first repair your error codes before pulling your purge valve to test it. A bad MAP sensor will cause fouled plugs and a rich fuel mixture which could be the cause of your hard start issues. Fix the codes first, then check your purge valve.
2011 Chevy Silverado HD 3/4 ton
2011 Chevrolet Silverado 2500HD LTZ Crew Cab 4WD
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Maintenance & Repair
NEED HELP QUICK PLEASE I NEED TO WORK TOMORROW !!! PLEASE AND THANK YOU VERY MUCH ! AND IT IS A SCOTTSDALE 1988 1988 1988 1988 1988 BUT NOT LISTED SO I HAD TO SELECT SILVERADO 1999
1999 Chevrolet Silverado 2500HD LS LB 4WD
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Maintenance & Repair
Help the engine is the E something or other gas not diseal
2007 Chevrolet Silverado 2500HD
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Maintenance & Repair
I have a 2005 chevy silverado 2500 4x4 6.0 only 18k miles and the odometer just says error on it. This just happened and I was wondering what the problem could be. I need to fix it cause I wanted ...
2005 Chevrolet Silverado 2500HD LS Extended Cab 4WD
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Maintenance & Repair
The gauges in the instrument panel will not work after turning off the truck and starting it back up. they will how ever start back up the next day or if I touch the power window switch.
2003 Chevrolet Silverado 2500HD
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Maintenance & Repair
2011 Chevrolet Silverado 2500HD
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