GOT2B GM Posted March 10, 2010 Report Share Posted March 10, 2010 Either it doesn't like Pennzoil synthetic or it doesn't like doing 1200km / week (pretty much all really easy highway 55 - 60 MPH on cruise) http://s29.photobucket.com/albums/c264/mshantz83/91%20cutty%20international/?action=view¤t=VID00001-20100308-1323.flv Started making this tapping sound a couple weeks ago, changed the oil to Mobil 1 synthetic no change. Most audible at idle. Almost sounds like a dry lifter. Fuel ecomony is not affected. Still makes the same power and pulls strong to redline. Video makes it sound pretty bad. Ran synthetic in it since I bought it at 61000 km two years ago. 5000 km change intervals. Has 94000 km (58k miles ish) on it now (its just a baby!) Still driving it 1200km / week as I'm working away from home. Hoping at the minimum it gets me through until April when I pull out my other cars..... So either it just happily keeps running making this sound, or it gets worse and I'll buy a crate LQ1 or sell the car outright and get a new DD. thoughts? Quote Link to comment Share on other sites More sharing options...
99screaminregal Posted March 10, 2010 Report Share Posted March 10, 2010 haven't seen the video yet but, sounds like a lifter. mine does the same for about 5 mins and stops every morning. Quote Link to comment Share on other sites More sharing options...
douellette Posted March 10, 2010 Report Share Posted March 10, 2010 hm, could be lifter. try putting some tranny fluid in it. We've done that to my stepmoms olds bravada with the 4.3 cause it was making a noise like that and after we put some tranny fluid in it stopped making the noise. Quote Link to comment Share on other sites More sharing options...
oldscsc Posted March 10, 2010 Report Share Posted March 10, 2010 Mine tapped since I got it at 69k. It has always been the lifters, happens most of the time but sometimes is silent. A couple weeks ago (a little over 77k), it sheared at least one (probably two) of those lifters off plugging the oil filter. It's had AmsOil in it since I got it and is only driven about 2,500 miles a year. Quote Link to comment Share on other sites More sharing options...
WhatTheFehl Posted March 10, 2010 Report Share Posted March 10, 2010 Do you just run straight synthetic in it or do you also put in an additive, like Lucas? They make a synthetic oil stabilizer in addition to the conventional stuff. What about Rislone? Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted March 10, 2010 Author Report Share Posted March 10, 2010 straight synthetic Quote Link to comment Share on other sites More sharing options...
Night Fury Posted March 10, 2010 Report Share Posted March 10, 2010 It sounds like your camera SUCKS Quote Link to comment Share on other sites More sharing options...
GP1138 Posted March 10, 2010 Report Share Posted March 10, 2010 Almost sounds like my old Cutlass... sound anything like this?? The engine let go very soon after this. EDIT: never mind - just watched that video again, yours doesn't sound nearly as bad. Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted March 10, 2010 Author Report Share Posted March 10, 2010 Thanks for the replies, the cat has never been run low on oil. It seems the sound is more predominant when the car is at operating temp. Whether that's due to the idle being lower I don't know. That vid was at operating temp. Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted March 10, 2010 Author Report Share Posted March 10, 2010 Sorry about the vid quality, its from my blackberry Quote Link to comment Share on other sites More sharing options...
tornado_735 Posted March 10, 2010 Report Share Posted March 10, 2010 I vote for a lifter too. Maybe you have a blocked oil passage causing the lifter to be dry. Quote Link to comment Share on other sites More sharing options...
douellette Posted March 11, 2010 Report Share Posted March 11, 2010 Almost sounds like my old Cutlass... sound anything like this?? The engine let go very soon after this. EDIT: never mind - just watched that video again, yours doesn't sound nearly as bad. wow that just sounds.. Quote Link to comment Share on other sites More sharing options...
Regal_GS_1989 Posted March 11, 2010 Report Share Posted March 11, 2010 My Cutlass tapped like that since the day I got it. It was lifter related as it never got worse over the time I owned the car. Quote Link to comment Share on other sites More sharing options...
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