I was into Sears this morning having a tire repaired using the road hazard guarantee. They are pushing a product called Zoom. It claims to clean, injectors, valves etc. It has to be "professionally" administered. Has any one tried it? I am leery about the claims made by these liquid fixes. At $80 is it worth while? I have 181K on a 92. The idle is not as smooth as it was. I plan to spring for a new IAC, the old one has been cleaned too many times.
Charlie