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03-28-2001, 09:16 AM
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#1 |
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Registered Member
Join Date: Jan 2001
Location: gaithersburg md, 20879 usa
Posts: 120
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Morning knocking
My car makes this knocking sounds in the morning, it sounds like valves. The sound goes away when that car warms up. I chnage the underdrive pulleys and I was wondering if this is the cause but I don't think so because it only makes the sound when is cold.
Anyone having the same problem-solution. The stang is a 99GT. .......................................... Tokiko struts and shocks (adjustable), lower car by 1.5 inch, rear sway bar (adjustable), lower rear control arm, strut tower brace, caster chamber plates,3:73, under drive pulleys, 245x16 michellin (pilot). |
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03-28-2001, 09:21 AM
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#2 |
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Drag Racer!
Join Date: Nov 1999
Location: Lake Worth, FL USA
Posts: 757
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Well I had my water pump pulley come loose on me and just needed to be tightened down again. That noise was constant though. You may want to double check the tourqe on your crank pulley. If not correct it will cause engine damage...
------------------ 00 GT, MAC Offroad H, Steeda Pulleys, Steeda Timing Adjuster, FMS 4.10’s, Flows w/turndowns, UPR shifter, UPR subframes, UPR LCA’s, Air Filter, Lakewood 70/30 & 50/50, Weld Pro Stars, Nitto DR’s, 253.8RWHP/292.8RWTQ Best on DR's 13.09@103.92 (1.81 60ft) Best on ET Drags 12.99@104.60 (1.67 60ft) M/M 100 88 LX coupe X-FHP, 12pt Cage, UPR K-member, 31 spline rear, full spool… |
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03-28-2001, 12:30 PM
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#3 |
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Registered Member
Join Date: Oct 2000
Location: Mt. Shasta, California, 96067
Posts: 77
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Sounds like it may be the beggining of a rod starting to go. I would seriously take it to the dealership and let them hear it in the morning...
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03-28-2001, 03:08 PM
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#4 |
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Registered Member
Join Date: Mar 2001
Location: Charlotte, NC
Posts: 199
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the stangs switched to hyperpathetic's in 93 right... so do the 4.6's use them? What kinda tolerances do they run.. cause i know that LT1's are known to have a lil piston clatter until they warm up.. kinda like what you described.
Phil Jerico Performance |
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