I bought my first car recently. but it has a high idle and smoking problem, i already replaced the spark plugs. I've been reading about the exhaust gas re-circulation valve. but i cant find it. where exactly is the EGR valve located in a 1999 KIA Pride?
the EGR wont reason a hissing noise, if the EGR replaced into undesirable, there could be a soft stumble off the line, or tough idle. a hissin noise sounds like a vacuum leak someplace. open the hood while the vehicle is working and notice in case you may hear the place the hissing is coming from. it ought to be coming from a line someplace.
all EGR valves should ( unless a very odd engine) on exhaust manifold. they will have a tube outlet returning back to inlet manifold and a control mechanism on it ( electrical connection) . these valves are known to carbon up and fail both due to soot.heat .wear etc. very possible this is the problem. a temporary fix can occasionally be found by soaking over night in cleaning fluid such as easing oil or petrol etc and washing out but this sort of fix never lasts. be aware these valves are not cheap.
