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Tapping noise in LS1 Posted By: deathofseasonsLS1 On: 05-14-2008 @ 00:57:34 Reply | Edit So recently my motor started having a tapping noise come from it. I thought it could be just a lifter tapping, but normaly it goes away after 20-40 seconds right? Well mine goes on untill it gets to running temp. and even then it still taps a little bit under 1500rpms, anything above that it goes away. Does anyone know what it could possibly be, and have any solutions to it. If it is a lifter tapping would a thicker oil help it any, and if it is a lifter should I replace it or worry about it? I'm running Royal Purple 5w-30 full synthetic, and Lucas Full Synthetic additive. Posted By: Fury_786 On: 05-14-2008 @ 09:07:50 Reply | Top | Edit piston slap its an LS1 thing -- 
2002 Camaro M5, FTW  [Whisper Lid][K&N][Flowmaster][B&M Shifter][3:42's, posi][TB Spacer][BMR STB][Adj. Panhard by Fury  ][Built T-5][Alum. 3.5" DS w/1350 Dana’s][HP Tuned by Fury ][100 shot wet kit][Pacesetter's][SLP LL's][Lakewood LCA's][Poly TM][180*][iCAT][MSD 8.5's][NGK Iridiums][3" Cutout][ST 1.75" drop][fra mods]
 Posted By: Silver2000WS6 On: 05-14-2008 @ 21:15:32 Reply | Top | Edit My car runs the same way.Just hit 87000 miles. --  
 2000 WS6 Trans AM 12.9@ 108 MPH 1994 25th Trans AM P-1SC Procharger 8 LBS Boost. Twin Intercoolers.Posted By: 91RS383 On: 05-19-2008 @ 09:47:20 Reply | Top | Edit Mine does it too. Like Fury said, it's an LS1 thing. It's down right nerve racking hearing it from under the car. The sound resonates through the oil pan. --  Posted By: TransAm64 On: 05-20-2008 @ 00:01:29 Reply | Top | Edit Welcome to the LS1 world....Look @ it this way....it's not a v-6. They all do it.....no biggie.-- 00' Trans Am convertible, M6 ,K&N, Edelbrock exhaust. SLP Loudmouth coming soon.  Posted By: 94fireturd On: 05-27-2008 @ 23:20:12 Reply | Top | Edit Mine did this exact same thing as others have posted. Did when I bought my car with 64K miles and at around 100K miles I started using Amsoil 10w-30. With the amsoil I couldnt hear it any more. -- 
94 Formula: sold 00 WS6: sold 1993 Z28: CIA, Hooker LT's, Mufflex Y,!EGR!AIR!CATS Posted By: rnrkid On: 05-31-2008 @ 06:05:52 Reply | Top | Edit You should hear it with a bent pushrod thrown in. Not cool! -- 2000 WS6 M6, Volant Cold Air, SLP Y-pipe and LM cat back, SLP subframe connectors, BMR panhard relocator,UMI LCA, UMI Adj. upper and lower a-arms, B&G lowering springs, UMI torque arm, ported and polished throttle body, 12 bolt Moser w/3.73's, cross-drilled vented rotors. http://www.cardomain.com/ride/2355847 Posted By: TBone On: 06-06-2008 @ 00:03:37 Reply | Top | Edit Using the AMsoil solved it ? --  Posted By: crispytoast On: 06-08-2008 @ 23:53:46 Reply | Top | Edit mine was making the same kind of noise...the dealership said that it was a worn out lifter. They replaced the whole longblock for a worn out lifter but i didn't care...it was under warranty  Posted By: Sicc02ss On: 03-21-2009 @ 16:22:00 Reply | Top | Edit ls series motors are prone for lifter tap, especially on cold start. Posted By: badSol On: 03-21-2009 @ 16:35:12 Reply | Top | Edit It's not lifter tap, it's piston slap on cold starts, and this thread is old as hell. -- 
1999 Trans Am M6, FRA, K&N, Skip Shift bypass, SLP Radiator, LS1 Motorsports lid, LS1 Motorsports Smooth Bellows Flowtech Long Tube Headers, Lane's Custom True Duals: Dr Gas X-Pipe, 12" Dynomax Bullets, Hotchkis STB, Pro 5.0 Textralia OZ700 clutch, billet steel flywheel, 334.6 rwhp 345.6 rwtq, 2001 Trans Am A4, SLP LM2 - RIP Posted By: smknZ28 On: 03-24-2009 @ 08:23:17 Reply | Top | Edit okay so im new to ls1 and i wasnt aware that they all have piston slap,im going to look at a 2000z-28 with 40,000 miles,should i expect to hear piston slap? also doesnt this wear your cylinders and/or piston and rings or can the enging pretty much run a full life like this? -- 88 Iroc 350TPI 700R4 no point in modding too slow.. Looking for 98-02z28 Posted By: CATransam On: 03-25-2009 @ 11:38:54 Reply | Top | Edit i have not heard of piston slap causing premature wear and its some that have it some dont. My 99 TA didnt have it nor does my vette but I have heard a number of LS1's with it. -- 04 Lemans Blue Corvette Z06 "No way dude...i saw an LS6 fight godzilla and the LS6 beat godzilla and it looked in the air and was like what do you think of that god? And god was like bring it bitch, so they fought and the LS6 beat god and now the LS6 is god because its the greatest thing ever" what I once thought was, is now no more. Posted By: 94fireturd On: 04-05-2009 @ 22:57:11 Reply | Top | Edit Wow old post. But yes the last two times I changed the oil in my Trans Am I used Amsoil and the sound was completely gone. Car had 113K miles and sounded like a damn diesel up untill it reached full operating temp and then some. --
1993 Z28: auto, 3.73's,LT4 HC, PCMforless, Hooker LT, 3" Y, single outlet 3" slowmaster w/cut-out,CAI, Tornado,MSD coil, TB bypass, 160* thermostat, !cat !EGR !AIR, SFC's, boxed LCA's & PHB, Heated o2 sensor conversion
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