Grinding noise when started?

RICKCARY

MEMBER
2008 DODGE CHARGER
2.7L
V6
2WD
AUTOMATIC
240,000 MILES

Car turns over but wasn't starting finally started and sounds like metal grinding. The oil is clean and full, just put in a water pump, oil pump, timing, chain and guides. Had water in the oil motor seized up, unlocked the motor and started the car heard metal grinding shut down motor and put the parts mentioned on and still hear grinding noise.

Saturday, March 11th, 2023 AT 3:17 AM

3 Replies

JACOBANDNICKOLAS

MECHANIC
110,087 POSTS

Hi,

Is it possible for you to record what it is doing and upload it for me to hear? I ask because there are many different things that can cause a grinding sound. For example, a starter motor that isn't fully disengaging, a faulty belt-driven accessory, and several other things.

If I could hear it, it would help me narrow things down.

Let me know.

Joe

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Saturday, March 11th, 2023 AT 9:27 PM

RICKCARY

MEMBER
2 POSTS

It is definitely internal my water pump went out which leaked, and antifreeze moved with oil and seized the motor. I put diesel fuel in the spark plug holes waited a day and got the motor unseized, drained oil pan, put a water pump on, oil pump, timing chain, and guides, also a new tensioner cam sensor and oil pressure sensor spark plugs and oil and oil filter tried to start it and it cranks but no start sprayed starter fluid in cold air and still nothing then unplugged cam sensor and tried starting it and that's when it started and was making a metal to metal grinding noise shut the motor off and that's where I'm at and can't get it to start.

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Sunday, March 12th, 2023 AT 4:46 AM

JACOBANDNICKOLAS

MECHANIC
110,087 POSTS

Hi,

The idea that it was seized, you broke it free, and it made a metal-to-metal sound is a concern. There could have been damage to the cylinder walls or even the rings.

Since it won't start with starting fluid, confirm there is an ignition spark to the plugs.

Here is a link that explains how that is done:

https://www.2carpros.com/articles/how-to-check-for-ignition-spark

If there is spark, then we need to check engine compression.

Here is a link that explains how that is done:

https://www.2carpros.com/articles/how-to-test-engine-compression

Let me know what you find or if you have questions.

Take care,

Joe

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Sunday, March 12th, 2023 AT 2:06 PM