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Engine Question...
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Post new topic   Reply to topic    NAIOA Impala Forums Forum Index -> 2000-2005 Engine, Exhaust and Transmission
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dmetrostars
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2003 Chevrolet Impala


PostPosted: Tue Jan 13, 2009 6:59 am    Post subject:  Engine Question... Reply with quote

Hey guys,

It's been a while since I lasted posted but I need to ask a question....

I have an 03 3.4L Impala with about 64000 miles on it. I'm running 10w-40 oil because my car does burn oil. I'm getting an engine ticking..... sometimes it's more of a knocking. Some days this happens and other days it doesn't.....even when it's really cold out which is weird. I did an engine flush a few months back and that fixed the ticking problem for a while, but it's back now and it annoys the crap out of me. I know my lifter is probably stuck or it could be something else... not sure. Is there anything, that's good, that I can add to the oil to free it up? I don't want to rip into the engine because that would be too much money and the car isn't worth that much at this point. Trying to find a cheap solution. You guys have any ideas? suggestions?

I know running a thinner oil would probably work but then I have the oil burning to worry about. Stuck between a rock and a hard place.
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davidhoutz
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PostPosted: Tue Jan 13, 2009 9:10 am    Post subject:   Reply with quote

All I can say is that an engine flush wasn't the best thing to do. Give a little more detail about what the engine is doing so these guys on here have a better place to start.
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RedMonteSS
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PostPosted: Tue Jan 13, 2009 9:17 am    Post subject:   Reply with quote

I have a ticking noise from my car, but it is in the exhaust. It's just a leak that i need to take care of. Where is the noise coming from in your engine?

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wanderson75
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PostPosted: Tue Jan 13, 2009 9:18 am    Post subject:   Reply with quote

wow...64k miles and it's burning oil that bad. Ouch.

If you have a way to record the noise when you start it up and run it for a minute or so that might be a help as well.

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milwaukee_01impala
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PostPosted: Tue Jan 13, 2009 10:35 am    Post subject:   Reply with quote

how loud is the ticking? and is it constant when the rpms raise?

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engine(LA1)/exhaust: FWI,1.0 DHP pcm,2 1/2" ZZP dp w/highflow cat,res delete,fm 40
interior/exterior:BBEngineering led LS cluster,BBEngineering led HVAC control,BBEngineering DRL/ALC bypass,quad headlights,impala embroidered floormats,20%tint,auto ventshade vent visors,LED tail lamps/front turn signals,LED interior/reverse/license plate lights,silverstar hi/lo beams,turn signal mirrors,aftermarket moonroof,17" Helo slick rims
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nightryder
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PostPosted: Tue Jan 13, 2009 10:44 am    Post subject:   Reply with quote

Is it actually burning the oil or is it looseing oil?

How much oil are you loosing/burning and it what kind of time frame?

The ticking is probably because of the low oil level.

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milwaukee_01impala
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PostPosted: Tue Jan 13, 2009 10:52 am    Post subject:   Reply with quote

the 3.4s are known to tick, but not real loud. mine ticks at start up but it goes away after a min or two of the engine running.

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engine(LA1)/exhaust: FWI,1.0 DHP pcm,2 1/2" ZZP dp w/highflow cat,res delete,fm 40
interior/exterior:BBEngineering led LS cluster,BBEngineering led HVAC control,BBEngineering DRL/ALC bypass,quad headlights,impala embroidered floormats,20%tint,auto ventshade vent visors,LED tail lamps/front turn signals,LED interior/reverse/license plate lights,silverstar hi/lo beams,turn signal mirrors,aftermarket moonroof,17" Helo slick rims
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Specter
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PostPosted: Tue Jan 13, 2009 10:58 am    Post subject:   Reply with quote

mine always ticks after i shut it off. Goes away after about 20 seconds and isn't loud at all. Sometimes it's a fast tick, sometimes slow. But yeah....there's nothing that changes, so I take it as a normal thing and don't pay mind to it.

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Wintermute
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PostPosted: Tue Jan 13, 2009 11:29 am    Post subject:   Reply with quote

3400's (and 60º V6s in general) have lifter noise and piston slap at startup that sometimes sounds quite bad. these noises generally go away very quickly as the engine warms up a little and the oil has a chance to circulate. Running 10-w40 is likely exaggerating the issue.

As far as burning oil, considering the engine and milage there's probably a good chance you have a lower intake manifold gasket leak. These engines are notorious for those Evil or Very Mad

How does your coolant look? normal or sludged? Dexcool unfortunately doesn't show up in your oil like the old green stuff did. Are there any leaks on the ends of the engine, along the seam of the valley between the heads? \_/ these are the easiest way to spot LIM gasket failure. Sometimes they do leak oil into the intake runners. They also commonly leak; oil into the coolant, coolant into the oil, coolant outside, oil outside…

There are a couple how-tos down in the knowledge database for doing the job yourself, assuming you have the time, space and tools. A shop would charge likely $600 and up for the job.

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dmetrostars
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PostPosted: Tue Jan 13, 2009 5:04 pm    Post subject:   Reply with quote

I'll try to record something. You can't hear it that much at start up. I basically hear it when I rev the engine when I have the hood open. It sounds like it's coming from the back half of the engine. I got the engine resealed when they had to install new gaskets. I can't find proof of a leak so that's why I'm assuming that it's burning oil. I basically screwed up my engine when I switched over to synthetic. The worst thing I could have ever done. I regret that now,
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dmetrostars
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PostPosted: Tue Jan 13, 2009 5:31 pm    Post subject:   Reply with quote

I have that video for you guys. Found the sweet RPM spot when you hear it most but I can hear it all over the higher RPM range when I'm passing people on the highway. It's been worse on other days. It doesn't sound that bad today.

http://dimensionaldesignstudios.com/engine.mp4
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Pitch Black SS
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PostPosted: Tue Jan 13, 2009 6:07 pm    Post subject:   Reply with quote

good video, dont know what the issue is, but Im sure someone will chime in.

Think I've seen your car around, not too many Impala's around here with aftermarket parts.

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nightryder
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PostPosted: Tue Jan 13, 2009 7:18 pm    Post subject:   Reply with quote

Definitely something in the valve train. Could be a lifter or a loose rocker arm, possibly a bent valve (that would help explain the loss of oil)

What gaskets did they replace and what did they do to "reseal" the engine?

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dmetrostars
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PostPosted: Tue Jan 13, 2009 7:23 pm    Post subject:   Reply with quote

When my mechanic opened up my engine, he replaced the head gaskets. Then he siliconed it and reinstalled everything. How much would something like that cost to fix roughly (bent valves, lifter problems, etc..)?
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di11avou
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PostPosted: Tue Jan 13, 2009 7:24 pm    Post subject:   Reply with quote

That sounds similar to what my brother's car is starting to do. I'd be curious in the answer to this, too.
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