A very easy and very effective way to find any leaks is to have a shop with the right tools do a smoke test on your exhaust system. Not only will this tell you IF you have a leak, it will pinpoint it for you in a matter of about 10 minutes from when they pull your car into the bay. -Joe Kuchan >From: "valleyrat12" <valleyrat12@xxxxxxxxx> >Reply-To: dmcnews@xxxxxxxxxxxxxxx >To: dmcnews@xxxxxxxxxxxxxxx >Subject: [DML] Re: Good news for vin 2277 AT LAST!! >Date: Sat, 25 Feb 2006 01:06:39 -0000 > >I tried the screwdriver method but I can't be sure about what I hear. >Funny thing is that the sound is really only pronounced when the >engine is warm. When cold it's barely audible. Perhaps the gaps loosen >up a bit when the motor gets hot? (at least thats what I want to >believe!) I would think an exhaust leak would present itself hot or >cold. Thoughts? > >Nathan > > >--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@...> >wrote: > > > > One way to confirm a valve knock is to use a stethescope. Or a long > > bar or screwdriver and you place the other end on your skull just in > > front of your ear. If you hear a loud metallic knock it is probably a > > loose valve. It can't hurt to check the valve clearances anyway but >in > > many cases what seems sure to be a loose valve is usually an exhaust > > leak. The reasons you will want to fix it is it will generally get > > louder, it may send smells and CO into the passenger compartment, and To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/