So awhile back, I had some problems with my daughters car over heating. I take it to National Auto to have a radiator replaced, as well as a head gasket. I get the car back in about a week with additional problems. They broke a hose at the vacumn advance module, replaced costing 60 bucks. They failed to hook up a hose to the egr valve. Fixed. Then about a week or so, my daughter complains that there is something else wrong with the car. I take it out for a spin, and the engine light is on, and the rpms jump up and down, and I was beside myself. After looking at all vacumn hoses, I gave up. I jumped on line to see if I could trouble shoot it here. Found this forum about IACV and said that seems like the problem, so I pull it off. Guess what? Where it bolts onto the intake plenum, they had cut a small thin piece of metal and plugged it. I pulled the metal plate off, cleaned up the IACV, and her car purrs like a kitten. I am sooooooo mad at national auto!!!!!!



I will never take any vehicle back there ever again.