Hey im looking to replace my EGR valve so i can pass emissions in AZ, but I'm not sure if my truck has it installed -_-. I took some pictures but i'm not sure if I have it, the first pic i think its the egr control valve but Im not sure. Does anyone know exactly where the egr mounts in the 351m?
Bronco Info: 1986 Bronco XLT 4x4 -AOD -Warn Hubs, NEW stock 302EFI (2008) All MSD ignition, 9mm FMSR wires
One thing you can do to help pass your smog test is to put in a new set of plugs, back your timing down a couple of degrees then drive it around for an hour then right before you go in to test stop somewhere discrete and add 1/2 gallon = 2 x 32 oz. bottles costs $5-6.00 anywhere) of 91 % Isopropyl Rubbing Alcohol to 1/4 tank of gas and you'll pass with flying colorsmassuming everything is in working order.
This information is from FSB member Sixlitre's post "I done falied my somg test (tears)" I've been using it for years and passed twice in the last four years.
Bronco Info: 96 xlt blue and white with white top 5.0 on 31 10.5 15
Wats up everybody ok I ran an engine check on my 96 5.0 fsb and my egr valve and o2 Sencers popped up I no the egr valve can cause the o2's to go off but my ? Is the egr valve worth cleaning or just buy a new one
Bronco Info: '83 VIN & title on '93 frame/body w/'95 4.9L & EB paint
Modular engines (esp. the early 4.6Ls) clogged their EGR passages; not these engines. And no matter how clogged they are, it won't set a code. These old EECs don't monitor the EGR flow - only the position of the valve & the resistance thru the EVR solenoid. Read this caption: