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A knocking noise on the driver side of the engine. For a…

Customer Question
A knocking noise on...

A knocking noise on the driver side of the engine

Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on?

For a month sounds like in the bottom the engine

Mechanic's Assistant: What is the model/year of your Cadillac?

1995 cadillac seville sts

Mechanic's Assistant: Are you fixing your Seville yourself? What have you tried so far?

Not yet

Submitted: 8 months ago.Category: Cadillac
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Answered in 3 minutes by:
10/1/2017
Cadillac Mechanic: Jerry Newton, Cadillac Technician replied 8 months ago
Jerry Newton
Jerry Newton, Cadillac Technician
Category: Cadillac
Satisfied Customers: 5,666
Experience: ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
Verified

These engines aren't known for lower end problems, but they aren't unheard of. If the lower end is knocking, you probably have a rod that is getting ready to fail.

The key here would be determining that it's a rod, by eliminating everything else. A broken flex plate can make a knocking noise. I would listen to this carefully, with the car in the air, and use a stethoscope to pin it down to its location.

If the noise is coming from the crankshaft, it's time to start shopping for a replacement engine. Since it's coming from the driver's side (I assume you mean the transmission side), it may be a cracked flex plate, which isn't an inexpensive repair, but it's a fraction of what an engine replacement will cost you.

Please take a moment to rate my answers, that's how I get compensated. If you have more questions, I am happy to follow up with you.

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Customer reply replied 8 months ago
OKAY THANKS
Cadillac Mechanic: Jerry Newton, Cadillac Technician replied 8 months ago

You're welcome. Good luck with it!

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