94GT Posted August 22, 2012 Share Posted August 22, 2012 Hey everyone on the forum, I recently bought this 1998 CSVT with a few issues. I got the car for $900, 146k on the odometer, transmission seems to be fine, and everything else is in the right place. When I went to look at the car, the car started right up, but had what sounds like a tick at the beginning. It's like a knock when the car has a cold start, but the noise reduces once it starts ti get warmer. Seems to be coming from right under the UIM. I can't gear it when I'm driving, but it is present. I also found a couple of labor receipts in the glove box that stated the car blew a plug out of the well. Had to be re-threaded and what not. Would like to hear responses from those out there with a little more experience than mine, what would you say the noise is? Here's a link to the photobucket video: http://static.photobucket.com/player.swf?file=http://vid1136.photobucket.com/albums/n499/kg9001/2012-08-21_18-32-43_377.mp4 Thank you all. Link to comment Share on other sites More sharing options...
94GT Posted August 23, 2012 Author Share Posted August 23, 2012 Anyone? Link to comment Share on other sites More sharing options...
Terry Haines Posted August 23, 2012 Share Posted August 23, 2012 ...it maybe some debris in the cylinder from the spark plug insert but I doubt it.Top end taps usually lead to a spun rod bearing as the piston travels a bit further up the bore and can kiss the cylinder head...a comon failure on this engine.Do you have good oil pressure etc??? Link to comment Share on other sites More sharing options...
94GT Posted August 23, 2012 Author Share Posted August 23, 2012 Yeah, pressure seems to be fine. It's just that noise though. Loud when car has a cold start (not too loud), and dies down a little a few seconds after starting it. Link to comment Share on other sites More sharing options...
jeffmknight Posted August 24, 2012 Share Posted August 24, 2012 Terry, when I had this car I noticed the keeper for the brake booster line was broken off where it connects to the UIM. The tip seems to be broken as you can move it in and out of the UIM without resistance. Do you think the keeper could have made its way into a combustion chamber? Link to comment Share on other sites More sharing options...
94GT Posted August 24, 2012 Author Share Posted August 24, 2012 ^^Thanks man, forgot to mention that also. Link to comment Share on other sites More sharing options...
BuckeyeSVT Posted August 28, 2012 Share Posted August 28, 2012 It would've melted by now. Chances are you are hearing one of a few things. First is oil drainback by using a filter that doesn't have a good drainback valve. These engine require a filter with a drainback valve that holds oil in the top end of the engine or it will drain back and tap/knock on startup for a few seconds. Use a Motorcraft FL820S filter and see if the problem eases up. Second could be a timing chain tensioner bleed down issue.. Seen plenty of those and boy do they make noise when cold. They also stop making noise after a few seconds.. But alot harder to repair as you have to tear into the engine to replace. Otherwise it could just be carbon buildup.. Seen it in these engines and plenty of import engines. Close tolerances and cold carbon can make some strange noises when cold. I'm betting on your filter being the issue as a drainback problem, but tensioners can make that noise just as much and often. -Dom Link to comment Share on other sites More sharing options...
jeffmknight Posted August 28, 2012 Share Posted August 28, 2012 Thanks for the reply Dom. We fed it Seafoam thru the intake, drowning it for a 30min wet soak at the finish of the bottle. Started it back up and drove it some until the SilverSmokeShip was back to normal. After that we did the oil (M1) and filter (WIX). Also Autolite APP104 plugs and a Bosch wire set. No changes noted. We are still able to hear this noise when it's hot, but it is definitely much louder when cold.. Link to comment Share on other sites More sharing options...
jeffmknight Posted August 28, 2012 Share Posted August 28, 2012 Also, we had discovered the PCV connection coming from the block had been disconnected. Not sure how long it was run like this.. just thought it might be important. Link to comment Share on other sites More sharing options...
864x4 Posted September 3, 2012 Share Posted September 3, 2012 Terry, Can you explain more about the spun bearing? Symptons? Do you have to drop the oil pan to diagnose? Link to comment Share on other sites More sharing options...
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