where is the purge valve on 1999 Chevrolet Silverado 1500

where is purge valve located

Asked by for the 1999 Chevrolet Silverado 1500
valve is located under intake manifold cover, front, behind throttle body on top of intake manifold. easy replacement for around $40.
1 more answer , 3 more comments
under the hood in the engine compartment.
what is the problem you have??

i have a code 440 and yes i have changed the gas cap
it has an evap leak. i was not thinking about the gas cap.

you need a scan tool, smoke machine and a voltmeter to find the issue. evap problems are one of the toughest to track done. a shop can do this to diag the issue and give you a bid.
can u tell me where it is located in the engine compartmet
i have the scan tool and voltmeter