Anyone in the Phoenix area know of a good mechanic for the H3? Looking like more of a valve issue for me

Hi,

ive made various posts on this forum about my issues for a little while now, tried everything that was suggested by Doc, Tainter, and others. All i was asking is if there was someone who lived in the Phoenix area that knew of a reliable shop possibly that somewhat specialized in the H3. Otherwise I’ll go to a dealer and even then there are several GM dealers to choose from. Any information would be great thanks