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 Engine ping in Series II

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jax95riv
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PostSubject: Engine ping in Series II   Sun Jul 29, 2007 1:57 pm

My parents have a 97 Pontiac with a NA Series II. It's always had this engine ping for lack of a better word. I've tried higher grade fuel but that hasn't helped? Can I adjust something to make it quit if I find someone with a tuner?
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jax95riv
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PostSubject: Re: Engine ping in Series II   Sun Jul 29, 2007 8:59 pm

The plugs I pulled out of it were AC 41-921.
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PostSubject: Re: Engine ping in Series II   Sun Jul 29, 2007 9:10 pm

maybe something in it is broke, there are alot of other things that can make a knock noise. does it only do it at idle or at all rpm? does the ping stay steady or does it change with the valve motion?

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PostSubject: Re: Engine ping in Series II   Sun Jul 29, 2007 9:14 pm

I would say it steady. Noticable at highway speeds. My mom discribes it as "keys jingling". lol
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PostSubject: Re: Engine ping in Series II   Sun Jul 29, 2007 9:45 pm

bad coupler? just a guess, b/c i really cant tell you much without actualy hearing it or knowing more about the noise. sorry.

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1996 with 244k miles, L324" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
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jax95riv
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PostSubject: Re: Engine ping in Series II   Sun Jul 29, 2007 10:04 pm

It's not supercharged.

I think my parents are going to give me the car. I thought about using the engine and tranny in da riv. I'd just need a supercharger for it. But I'd like to get the "ping thing" worked out before I'd consider it for an engine swap.
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PostSubject: Re: Engine ping in Series II   Sun Jul 29, 2007 10:42 pm

my bad lol i didnt reread the N/A part
if you plan on doing a swap you may be better off selling the GP and buying a L67 to drop in. they go for pretty cheap.
can you feel the ping or just heap it? could it be an exhaust tick/leak?

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1996 with 244k miles, L324" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
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PostSubject: Re: Engine ping in Series II   Sun Jul 29, 2007 10:49 pm

I can't feel it, just hear it. It doesn't seem to affect performance, more annoying than anything. I thought maybe I could adjust something to fix it since it is a series II. Then I thought maybe a cooler range plug, but I don't know if that make a difference since it's not SC. dunce
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PostSubject: Re: Engine ping in Series II   Mon Jul 30, 2007 8:59 am

I'd get it scanned to see if it's reading as KR. If it is a true knock issue, would be a good idea to do a fuel system and top engine clean. Otherwise, the noise could be the belt, lifters, a rocker, or something worse. Maybe the old screwdriver to the ear trick would help locate the source?

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