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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
Ok I checked for leaks in the line but I didn't find anything. There is that little regulartor at the back of the firewall that is blue or black and I feel vacuum from that but when I check the vacuum line going to the egr valve there is no vacuum. So does that mean that there is something wrong with the lines or can someone help me out? also that little regulator at the back I was talking about has much more vacuum when I take it off and when I put it back on it seems as there is much less vacuum. HELP!!!!