Hi all, My 2002 GT vert has a collapsed hose going from the PCV valve to the Throttle Body by the EGR valve. This little adventure started a few summers ago when I was throwing lean codes because the original hose was cracked wide open. I found a replacement and swapped it out. The hose has been collapsing completely while the engine is running since the day I put it on. I have replaced the PCV valve in question. I have tried EVERYTHING except for solid copper or PVC pipe, everything from fuel hose, radiator & heater hose, vacuum hose, everything. WHY would this hose be collapsing? It may not relate to this, or it may, but I also experience a high idle that is intermittent. Sometimes its high, others its not. The idle will hang around 1000-1200 rpms. When the idle is high the engine is very slow to come down in speed (RPMs) after I let my food off of the gas. Any ideas? I've also replaced my front upstream O2 sensors if its any help.
i had the same thing happen with my o2 gt. everything would collaps, and ever dealer would say its back order and theres nothing anyone can do??? so one day i was on latemodlerestoratiansuppy and found a pastic factory rapasment for like 30 dallors. as for the ide just clean ur iac
The inside of the tube gets saturated with oil and softens. The vacuum causes it to collapse. I had to replace mine at 60K
