Quick question. Removing egr, everything is cracked except the pipe to the exhaust manifold. Its seized, ive sprayed wd, no luck. The nut is not rounded but has skipped so ive stopped. What are my options? Worst case scenario, can i cut the pipe and use a 22mm bolt extractor? Engine is still in the car. Thanks!
For anyone else tackling an EGR delete on a TT - Short version, you can leave that ugly hunk of metal where it is. On an older TT engine, you'll find that the pipes which travel from the EGR valve to the fronts of the plenum are so coked up and blocked that no exhaust gases will flow into the plenum anyway. For a quick bit of reassurance just squash those pipes with multigrips, pliers et al. You'll be squashing the internal coke deposits as well, thus improving the internal sealing of the pipes. Ask me how I know...
Edit - I should have said EGR disable, rather than delete. Sorry for the confusion guys. Or you could just unplug the EGR valve electrical connector? Been 14 years since I did this stuff. Need a refresher course. Pretty sure I'm about to get one
Unless the diaphragm is leaking the EGR valve should remain closed once the solenoid is unpluggs (or once the the vacuum line running from the solenoid to the valve has been removed). It is completely fine to cut the tubes running from the EGR valve to the motor off and just leave the valve in the engine bay. If you caut the off around the back (near the firewall) it is more or less the same result (from an aesthetic and functional point of view) as removing the valve entirely, and takes a hell of a lot less time. You would then also leave the tube that runs from the exhaust manifold tot the EGR valve intact.
