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Engine knocking/rattling

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Old 06-15-2022, 10:47 PM
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Car: 1989 Chevy Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Engine knocking/rattling

Hey everyone! I’ve recently developed a rattle/knocking at what seems the bottom of the engine. It started while I was driving the backroads and I immediately pulled over and got it towed home. The car is holding good oil pressure and is idling fine. I pulled the dipstick and the oil was about a half inch low.

Here’s a video of the noise:
https://youtu.be/PU4A3sq80lU

Just seeing if this sounds familiar to anyone? I’m guessing it is going to need a rebuild which I don’t have the funds for, so praying it’s not that catastrophic of an issue.

Thanks
Old 06-15-2022, 11:13 PM
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Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: Engine knocking/rattling

Sounds like bottom end problem but check your torque converter bolts, make sure nothing is loose down there.
Old 06-16-2022, 08:05 PM
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Join Date: Jul 2017
Location: St. Louis, MO
Posts: 119
Received 6 Likes on 3 Posts
Car: 1989 Chevy Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Re: Engine knocking/rattling

Everything looks okay on the outside.

I changed the oil and the noise has toned down dramatically. Oil pressure is better. Would that be a good sign that it is a bottom end issue?
Old 06-16-2022, 08:49 PM
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Join Date: Nov 2008
Location: Milwaukee
Posts: 2,005
Received 147 Likes on 121 Posts
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: Engine knocking/rattling

Yeah, that pretty much makes it clear. If nothing external is contacting anything else then there's only one place it can be and they don't get better without some serious intervention
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