Do we need egr valves?
12-12-2012, 08:14 PM
#1
2nd Gear Member
Thread Starter
Join Date: Apr 2011
Location: NJ
Posts: 410
Do we need egr valves?
I know they shut off at full throttle, but it brings exhaust gases back into the manifold to dull down the combustion so it helps with the environment. But doesnt it also dirty up our engines? What are the benefits of it besides the environment? what is it used for?
12-12-2012, 09:41 PM
#5
6th Gear Member
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
Like Diabolical said, that's the pcv valve. An egr valve is bolted to the exhaust manifold on earlier mustangs and re-routes exhaust gases back into the intake manifold. Our engines are supposed to have a form of exhaust gas recirculation using the variable cam timing, but how that actually works, I do not know.
Every newish vehicle has a positive crankcase ventilation valve.
Every newish vehicle has a positive crankcase ventilation valve.
12-13-2012, 12:49 PM
#6
2nd Gear Member
Thread Starter
Join Date: Apr 2011
Location: NJ
Posts: 410
Like Diabolical said, that's the pcv valve. An egr valve is bolted to the exhaust manifold on earlier mustangs and re-routes exhaust gases back into the intake manifold. Our engines are supposed to have a form of exhaust gas recirculation using the variable cam timing, but how that actually works, I do not know.
Every newish vehicle has a positive crankcase ventilation valve.
Every newish vehicle has a positive crankcase ventilation valve.
12-14-2012, 06:32 AM
#7
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Join Date: Jan 2005
Location: New Jersey
Posts: 250
There is one on the driver's side that has been mentioned that goes to the intake manifold which does have a normal pcv valve inside the valve cover(I know since I cut mine out and removed it), and there is one on the passenger side valve cover that goes to the intake tube not the manifold which is completely free flowing with no pcv valve on it. That's it. No EGR at all on our cars...I believe the GT500 has an EGR set-up but not our 4.6 3v's.
12-14-2012, 10:31 AM
#8
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Join Date: May 2010
Location: Michigan
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12-14-2012, 05:30 PM
#9
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Thread Starter
Join Date: Apr 2011
Location: NJ
Posts: 410
There is one on the driver's side that has been mentioned that goes to the intake manifold which does have a normal pcv valve inside the valve cover(I know since I cut mine out and removed it), and there is one on the passenger side valve cover that goes to the intake tube not the manifold which is completely free flowing with no pcv valve on it. That's it. No EGR at all on our cars...I believe the GT500 has an EGR set-up but not our 4.6 3v's.
12-14-2012, 05:31 PM
#10
2nd Gear Member
Thread Starter
Join Date: Apr 2011
Location: NJ
Posts: 410
There is one on the driver's side that has been mentioned that goes to the intake manifold which does have a normal pcv valve inside the valve cover(I know since I cut mine out and removed it), and there is one on the passenger side valve cover that goes to the intake tube not the manifold which is completely free flowing with no pcv valve on it. That's it. No EGR at all on our cars...I believe the GT500 has an EGR set-up but not our 4.6 3v's.