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Noisy lifters on DOHC '01?



 
 
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Old October 31st 13, 04:19 AM posted to rec.autos.makers.saturn
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Default Noisy lifters on DOHC '01?

On Tuesday, March 12, 2002 9:21:46 PM UTC-7, Paul wrote:
> Has anyone else experienced the "valve tapping" noise on their 2001 SL2?
>
> I was a little disappointed with the lifter noise in our 2001 SL2. Our
> previous SL2's never had this problem.
>
> Is Saturn addressing this noise? Or, are they getting careless and letting
> their product go down hill?
>
> Thanks
>
> Paul


Top end noise is pretty common on dohc engines. This is because the oil flow holes are very small and when the oil is to thick(cold) it cant flow as fast it has to wait till pressure is built and thats why the noise will go away after about 15-20 seconds. Thats why it only does it when its cold or the cars been sitting because it cools and thickens. Put a lighter weight oil in and see if that helps. i see a number of people starving there cams and lifters because they dont understand the dohc oil flow
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