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#1
11-20-2007, 12:00 PM
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EGR Problems/questions
Hey I have a 1994 olds cutalss supreme.
The car would not start. I unhooked the EGR and it fired right up. If I plug the EGR will it hurt the motor? I heard that it may cause it to overheat? 
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#2
11-20-2007, 01:20 PM
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Re: EGR Problems/questions
Unplugging the EGR can cause increased cylinder pressure but until you get a new one I wouldn't worry about it too much. You don't say what size engine you have but if it is a 3.1 remove the EGR and clean the passageway to the engine clean the valve and replace it. If it stalls you will need a new EGR.
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#3
11-20-2007, 01:59 PM
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Re: EGR Problems/questions
its a 3.1L
I had the EGR off already and clened the passage... With the egr off the car it started and ran fine (with the passage to the intake plugged). I mistook that as a plugged exhaust sys forcing too much exhaust back into the EGR... However, I just found out that at idle the EGR is suppose to be shut.... so it leads me to believe that the EGR valve is the problem... But first I need to install the new cat that I picked up today.... I may need to bring the car back on the road before I can get a new valve... so I am thinking about plugging the EGR pipe.
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