Quote:
Originally Posted by thegr8cody
i have a 98 z71 it starts up and runs fine but after driving it around for a while when i come to a stop the rpms drop.i took out the egr valve and iac valve and cleaned them and its still doin it.its not a major problem i can just give it a lil gas and it goes away.from what ive been told it could be a vacuum leak.its not throwin a code for anything like that .does anybody know a good mechanic in lake charles i need to fix it so i can sell it
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Happened to my honda
Seafoam 1/3 in vacuum lines ,1/3 in the crankcase,1/3 in the gas can.... Then let sit for 30 then drive around....also make sure iac valve is not sticking. I seafoamed and wd 40 the flapper on my car amd solved the problem...