GC 2005 Haynes service manual
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RE: GC 2005 Haynes service manual
Yes there is i just picked one up recently. The EGR doesnt look like your usual EGR.Assuming you have the V-6 it should be near the belt drive system on the front of the motor. Has a metal tube going into it and an electrical connector on top. Here I found this its circled on the lower left......
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RE: GC 2005 Haynes service manual
Good picture JoeC1981. The EGR Valve is just behind the alternator if there is an EGR Valve instead of a blank plate. Some don't have an EGR valve. My 2002 doesn't.
Yes libedavi, there is a Haynes Manual for 2003 thru 2006. A worthwhile investment.
Yes libedavi, there is a Haynes Manual for 2003 thru 2006. A worthwhile investment.
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RE: GC 2005 Haynes service manual
Thanks a lot guy. Now my problem is what to check if the code says EGR SENSOR A HIGH. Do I need to replace the egr right away or do I need to check PCV. Thanks for any help.
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RE: GC 2005 Haynes service manual
The codes are in the Haynes Manual or you can go to http://www.allpar.com/fix/80s-codes.html
The PCV System is quite separate from the EGR system. They aren't related.
For an explanation of the EGR System here's one I came across which seems clear enough:
The PCV Systemdeals with fumes from the crankcase and directing them to the intake manifold to be burned. Years ago there use to be a pipe coming from the crankcase, and pointed downward, that allowed these fumes (sometimes smoke on a worn out engine) to vent directly into the atmosphere.
The PCV System is quite separate from the EGR system. They aren't related.
For an explanation of the EGR System here's one I came across which seems clear enough:
"EGR serves one purpose and one purpose only. That purpose is to reduce Oxides of Nitrogen (NOx). Under normal combustion, Nitrogen (N2), Oxygen (O2), in the air and Hydrocarbons (HC) in the fuel combine to form water (H2O), Carbon dioxide (CO2), and the Nitrogen remains unchanged. Under very hot combustion temperatures, the Nitrogen reacts with the other two byproducts and forms Nitrogen oxide (NO). After being released into the atmosphere, it picks up another Oxygen and becomes Nitrogen dioxide (NO2). In the presence of sunlight, it combines with other compounds like Hydrocarbons and forms Smog. Since exhaust gas is inert (very stable) it doesn’t burn again. So by being introduced into the combustion chamber, it will lower combustion chamber temps enough so that
the Nitrogen doesn’t react with the other compounds and is passed unchanged out the tailpipe thus not contributing to smog. Now, since exhaust gas doesn’t burn, it doesn’t exactly help with combustion. At higher RPM’s, this really isn’t noticable, but at idle, the introduction of exhaust gas into the combustion chamber will cause a rough idle and can cause stalling if too much is introduced."
the Nitrogen doesn’t react with the other compounds and is passed unchanged out the tailpipe thus not contributing to smog. Now, since exhaust gas doesn’t burn, it doesn’t exactly help with combustion. At higher RPM’s, this really isn’t noticable, but at idle, the introduction of exhaust gas into the combustion chamber will cause a rough idle and can cause stalling if too much is introduced."