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Chev 4.8 ticking noise

Chev 4.8 ticking noise

Postby gmaj [OP] » Dec 13 2020, 4:39am

2010 Silverado 1500 4.8 l engine Km 83500
Ticking noise, tried wi 2010 Silverado 1500 4.8 l engine Km 83500
Ticking noise, tried with Rislone engine oil treatment. Quite at start until engine temp to operating temp. Then starts ticking. th Rislone engine oil treatment. Quite at start until engine temp to operating temp. Then starts ticking. Removed both drive belts&?started still noisy. Then drained 5W30, filled up with 10W30, replaced EO filter. No noise until engine temp reaches OP TEMP then starts ticking. Then drained some oil, poured 500 ml ACDelco engine oil supplement. Still making noise after 20 minutes. How long should I wait for EO supplement to work / quite the lifter noise. Please advise me what’s going on. Thanks
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Re: Chev 4.8 ticking noise

Postby GrandPaJoe » Dec 13 2020, 5:43am

Whew that was a tough read,

Anyway, you are sure the ticking is coming from within the engine? Have you ruled out and exhaust manifold leak?
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Re: Chev 4.8 ticking noise

Postby gmaj [OP] » Dec 13 2020, 4:07pm

Thanks. My typing got mixed up. How do I check exhaust manifold leak. Can I spray soapy water. Manifold nuts are there. Noise coming from right side / passenger side.
Thanks
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Re: Chev 4.8 ticking noise

Postby GBSierraSLE » Dec 13 2020, 7:33pm

Look for dark scorch marks around the manifolds and/or broken bolts, especially the rear manifold bolt on each side of the motor. Pretty common on those motors.
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Re: Chev 4.8 ticking noise

Postby Chevy-SS » Dec 13 2020, 11:07pm

Ohhhhh, that first post.... my eyes are still crossed, LOL.

Here's an interesting method (video below) that some guys are using. I've seen folks spray (like in this video), or listen with some sort of flexible tube held at ear, then moved slowly around the edges where the manifold attaches to engine.

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Re: Chev 4.8 ticking noise

Postby Regalguy80 » Dec 31 2020, 11:10pm

If it's still ticking after warm up chances are your lifters are loose. You might have to pull the heads but the lifter trays can become slightly oblong causing the lifter to turn slightly. Most people find out the cause after they damage the engine. The lifter trays are only plastic and are known for causing lifter ticking.
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Re: Chev 4.8 ticking noise

Postby gmaj [OP] » Jan 01 2021, 8:42am

Thanks, I am not driving the truck. But I keep starting the truck to run about 20 minutes. It’s cold / snow now here, I am planning To pull the head to check & fix. Ticking / tapping starts at operating temp. Now I have 10w30. I am thinking that 10W40 might quite the noise at operating temp.
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Re: Chev 4.8 ticking noise

Postby Regalguy80 » Jan 01 2021, 2:35pm

I'd be careful of how thick an oil you use. Especially is cold climate where you and I live. It could also be piston slap. In that case there is nothing you can do. These engines are also know for that
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Re: Chev 4.8 ticking noise

Postby gmaj [OP] » Jan 01 2021, 4:50pm

I poured in 500 ml of ACDelco engine oil supplement, after this no noise at start up until operating temp, 20 / 30 minutes. I don’t know if this due to 10W30 or engine oil supplement. I hear that 4.8 engine needs 1 more ACDelco EOS. Do I need to.
10W30 to 10W40 or 5W40. Would 40 better / thicker at operating
temp ? I Used 5W30 before this issue. Any thoughts on this.
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Re: Chev 4.8 ticking noise

Postby GBSierraSLE » Jan 01 2021, 5:06pm

At operating temperature, there is no difference between 5w30 and 10w30. They are both 30w oil. 5w will flow a little better in very cold temps.
Adding oil treatments is usually a complete waste of money.
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