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10-18-2013
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#1 |
 
Join Date: Feb 2010
Location: Jacksonville,FL
Posts: 248
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follow up: flywheel still rattles
Replaced dual mass flywheel and clutch, Still rattled. Code 44(LH O2 sensor,lean) Replaced O2 sensor,because it was easy,and sometimes it idled smooth sometimes it idled rough ,Still rattling.SO I took it to my southeast ZR-1 specialist.He removed the plennm cleaned all the injectors checked the wires and coils put it back together and it did the same thing.Off with the plenuum again.bench tested the injectors,checked compression(191-201)and then was able to determine that the NO #7 cylinder wasn't fireing all the time.He then found a broken wire 6 inches up the harness that was making contact intermittently.No rattle and the car runs like a scalded dog.Big time Thank You to Aaron Scott of SGC.
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Gary 90-1572 
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10-18-2013
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#2 | |
  
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,817
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Re: follow up: flywheel still rattles
Quote:
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10-18-2013
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#3 | |
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,120
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Re: follow up: flywheel still rattles
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Im assuming the fuel rail harness... Id imagine they get crispy over time.
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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10-18-2013
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#4 | |
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Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,817
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Re: follow up: flywheel still rattles
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Daryll.....got wheels balanced this morning with those new brakes......120mph and no vibration...just have to watch for Combines with 24 row corn heads 
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Clickable links  On Iphone Touchable Links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 10-18-2013 at 11:35 AM. |
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10-18-2013
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#5 |
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Join Date: May 2007
Location: Peoria, AZ
Posts: 9,120
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Re: follow up: flywheel still rattles
Yep perhaps or perchance an intermittent electrical queertron
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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10-18-2013
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#6 |
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Join Date: Feb 2010
Location: Jacksonville,FL
Posts: 248
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Re: follow up: flywheel still rattles
Yea the wire was going to the #7 primary injector. The break was up in the harness about 6 inches where they are all together.
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Gary 90-1572
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