86GT 93LX

my car surges at a idle and im not sure why im hearing a wierd sound coming from the drivers side near the valve cover that sound like bad timing or a miss. my tach goes up and down as it surges. i think it might be a intake manifold leak any other things?the miss is almost like a tick sound but more of a exhaust sound

86GT 93LX

heres a few vid clips u cant hear the exhaust real good till the end of this clip

http://www.youtube.com/watch?v=4lauPlJ8zng

86GT 93LX

and more


http://www.youtube.com/watch?v=p15O4BWpCsk

86whitepony

welcome to owning a fox! check for vac leaks, clean your maf, check for codes

AudioNutz

I've seen two other articles that look like they might be useful for this condition:
DIY KOE/KOER self test combo ..... this will help ID'ing what in the EEC could be causing the surge...
http://sbftech.com/index.php/topic,2471.0.html

Base Idle Reset.
http://sbftech.com/index.php/topic,1031.0.html

86 5.0L

ha! congrats you own a worn out fox

mine does the same thing, of course I have a exhaust leak at the header flange, mid-pipe connectors, vacuum leaks all over the place too

mjr46

koer first and if you have an exhaust leak before o/2's , fix that

86GT 93LX

yea its a exhaust leak, does that cause the o2s to read funny?
i tested my compression 2 times on each cylinder im 150-160psi on all cylinders so that actually good. im waiting to put on my mac equal length shorties so ill get that really thick graphite gasket set stuff. i cleaned the IAC, i seafoamed the brake booster. i will pull the codes. i dont have a cel so its possible.

Sidewayz6.0

I have to tell you. The best response I've ever seen to a "My Fox is surging" thread, was...."Really? No ****."

LOL...Welcome to a foxbody.

86GT 93LX

great links the set screw might be my prob plus ill test the tps