Oh no, knocking noise from drive train.
03-21-2004, 06:50 PM
#1
Staging Lane
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Oh no, knocking noise from drive train. Drove car yesterday and a loud ticking noise started. It got really loud when throttle is applied. My air fuel meter was going crazy. It sounds like a loud sewing machine. It sounds like it is coming from the drivers side valve cover. Any ideas on what it might be. Just got car back from heads and cam install a couple of weeks ago.
Last edited by Cool AirZ28; 03-21-2004 at 06:55 PM. Reason: add info
03-21-2004, 07:52 PM
#2
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Lets see, big cam,sewing machine noise, sounds normal to me, any SES lights yet? if you dont have tuning the first one you have will probably be p0300 random misfire, what do i win?
03-21-2004, 08:19 PM
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Is it idling bad?
You might have a broken spring, it could be many things. I'd get it checked out.
If your oil pressure is going up and down at idle then it's a spun bearing but I doubt that's your problem.
You might have a broken spring, it could be many things. I'd get it checked out.
If your oil pressure is going up and down at idle then it's a spun bearing but I doubt that's your problem.
03-21-2004, 08:23 PM
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Well if the noise just apperared you need to check it out ASAP.
Have you taken the valve cover off & inspected inside?
Make sure nothing came loose or have a broken spring.
Have you taken the valve cover off & inspected inside?
Make sure nothing came loose or have a broken spring.
03-21-2004, 10:17 PM
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Staging Lane
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I have tuning and the car was running fine. Oil pressure is fine. The ticking noise is WAY louder than the normal sewing machine sound. I plan to have it checked out soon. The car idiling fine. What ever it is, my air/fuel guage is going haywire.
03-21-2004, 10:58 PM
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I'd first check to see if all plugs are in tight. I'd then check the header bolts, and check and make sure no exhaust leaks are present. Those are the simplest solutions. Next, pull the valve covers. Check for bent pushrods, loose rockers, or broken valvesprings. I just went through this problem and it turned out to be a rocker arm bolthole was stripped, and the bolt had backed out. I had to insert a helicoil.
Whatever the case is, I would NOT drive it until you have inspected the valvesprings. It is highly possible it could cause extreme damage to pistons, and render the car not drivable. Is the car misfiring (flashing ses), or does it seem down on power?
Josh
Whatever the case is, I would NOT drive it until you have inspected the valvesprings. It is highly possible it could cause extreme damage to pistons, and render the car not drivable. Is the car misfiring (flashing ses), or does it seem down on power?
Josh
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03-22-2004, 09:11 PM
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had same problem bout 2 days after i got my z,turned out to b 4 bent pushrods,luckily no major damage need 2 get it checked asap,hit rev limiter and when i did it bent them them just like that,major power loss
