mattdel

thats one of the funniest things i have read on this forum

86 5.0L

so would that cracked line be a culprit?

also I was mentioned to by a friend to LIGHTLY tap the IAC to see it thats what causes my shaky idle

iceman89gt

without a doubt i would have to say its probably the vac leak, i had the same problem not long ago, look on the left side of the plenum where the round hose from the air filter ties into the square block just before the plenum on the bacside closest to the windshield there should be 3 or 4 vac lines there, there are rubber boots on them or atleast some of them, check em if they are cracked or pinholed you get a massive rush of air being pulled through the hole or crack causing a whistling sound. mine still does it but its that holley systemax 2 intake sucking the guts out of that k and n air filter when i smoke the throttle. you may also want to check the air filter box for leaks, if it is that take the damn thing off and put a k&n filter on it and go to town. if neither of these or the previous mentioned threads work start looking for the canary in the intake lol lol lol good luck man and if ya got anymore questions i would be glad to help oh yea as far as the idle jump i think that may go back to the vac leak causing an irregularity in fuel flow in other words its not just sucking because of the leak its breathing. LOOK OUT BOYS ITS ALIVE!!!!!!!!!!!

86 5.0L

Well it came with a K&N filter already

Is it that thing above the brake booster? black with 5 outlets?

iceman89gt

thats the one,are you by the car now, wait my bad no your looking at the vac lines out of the fire wall, im looking at your picture now and its part of the block coming from the or square part of that silver thing we call a plenum or upper intake, if your looking at the windshield its on the left and behind the square block and comes off the square block, the fuel pressure regulator should be tied into one of those inlets on that block, trace the lines you found above the brake boosterthey should go to it

86 5.0L

lol its 1:47am I juut got off an 8-hour work shift, soooooooooooooooooooooo

NO!

EDIT: the salt and pepper thingies?

iceman89gt

its almost 4 am here, lol lol lol look back up i edited that last post see if ya know what i mean i will try to find something in the pic to pinpoint it in the meantime

86 5.0L

yeah saw your edited post, is it those salt and pepper thingies?

iceman89gt

tell ya what just give me a sec and im gonna save that pic to my computer , go to paint, circle it and repost it then you will know can ya hang on a sec, in the meantime, check out my gallery and see what ya think of my stang


here ya go red arrows indicate what u need to check and that yellow should be the fuel pressure regulator, there may be more behind there i dont know check all those lines coming from the firewall you mentioned earlier and also make sure everything in circled in pink is tight

[IMG]local://upfiles/42735/62F7AB3C040E4625BBA6FAF2845AEDA5.jpg[/IMG]

86 5.0L

LOL! Thanks!