If it really is an EGR no flow on a 96 or 97, unbolt the egr as above, and look into the hole it bolts into.
If it's completely clogged, as I have seen, the easy fix I've seen people do is to push the plug of material into the intake with a screwdriver.
Don't do that.
A shopvac on the egr port while holding the TB open works, without randomly running a slug of gunk thru your engine.
You may have to work at it with carb cleaner; if it's really gunked up, OR if you have a 94/95, pull the TB and clean it.
If you have a 94/95 and need to clean the egr passages, do a pi swap instead, it's less labor.
Also, there is a disc welded into the EGR pipe between the two ports for the sensor; it can clog.
Any of these clogs are a sign of an engine that has been run on old/cheap oil.
Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.
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