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Car is knocking really bad!

Old Feb 26, 2012 | 04:59 PM
  #1  
Shane87irocz's Avatar
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From: IL
Car: 1987 IROC-Z
Engine: L-98 350 TPI
Transmission: 700R4
Car is knocking really bad!

Took the my car out today and hit the rev limiter and it started to knock real bad from the valve cover. Also it's has a bas miss fire. What do you think it is?
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Old Feb 26, 2012 | 05:06 PM
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ex-x-fire's Avatar
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Re: Car is knocking really bad!

Probably bent a push rod, pull the valve cover & look for loose rockers, then roll the push rod on a flat surface.
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Old Feb 26, 2012 | 06:56 PM
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Brando5641's Avatar
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From: Siloam Springs AR.
Car: 1998 Trans/Am, 1989 RS Camaro
Engine: LS1, LQ9 6.0
Transmission: 4L60E, 4L60E
Axle/Gears: 2.73, 2.73
Re: Car is knocking really bad!

Originally Posted by ex-x-fire
Probably bent a push rod, pull the valve cover & look for loose rockers, then roll the push rod on a flat surface.



Its super ez to do. Pull the pushrods out of where the sound is comming from and tell us what you see. We can help you put it back together.
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Old Feb 26, 2012 | 07:45 PM
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From: Allegan, MI
Car: 89' camaro RS TTOP
Engine: 92 5.0tpi Bosch III, headers, msd
Transmission: 700r4 built. trans go. 2,300 stall
Axle/Gears: 3:73 posi ls disc brake conversion
Re: Car is knocking really bad!

Sounds like someone was having just a little to much fun eh?
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Old Feb 26, 2012 | 08:06 PM
  #5  
Shane87irocz's Avatar
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From: IL
Car: 1987 IROC-Z
Engine: L-98 350 TPI
Transmission: 700R4
Re: Car is knocking really bad!

Push rods is what i was thinking. I have the comp chrome molly push rods so hopefully it didn't damage anything else

(musicfreako) yeah i guess you can say that lol. I guess that what i get for showing off.
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