Question about 1989 Chevrolet G10
I have a 89 chevy van with 305. the egr is not working properly. the vacuum out of the throttle body is good but there seem to be no vacuum coming out of the egr valve. is this because egr valve is stuck closed or is there another possible cause for no vacuum at the egr?
if the egr valve is stuck can i clean it by spraying or soaking it?
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