Saturn Repair: egr valve, saturn sl, combustion chamber


Question
hi, i have a 99 saturn sl which iam told needs an egr valve, what does this do and how tough a job is it to replace for a diy?

Answer
hi the egr valve is easy to replace  .. the valve itself lets exaust gas to be reburnt there for cooling your combustion chamber tempuratures and stopping the production of nox. there is one plug and a couple of bolts and a gasket 1\2hr to and 1hr at most if u need more info let me know