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Screaming sound coming from passenger/back side of engine

Tiny
ERIC HODSON
  • MEMBER
  • 2003 HYUNDAI SANTA FE
  • 170 MILES
Vehicle listed above is a GLS. 2wd. 3.5.
Making a sound that appears to be coming from passenger/back side of engine. Not serpentine belt, not timing belt or kit component. It literally sounds like a very, very, very loud scream. I mean loud screeching sound that can shatter glass. Two really good mechanics looked at it and both thought timing belt kit needed to be done, but that's not the problem.
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Tuesday, January 21st, 2020 AT 3:23 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
Hi,

Could it be related to the starter motor not disengaging? Also, can you record it and upload it for me to hear? If I can hear it, I may be able to help diagnose the issue.

Let me know.

Joe
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Tuesday, January 21st, 2020 AT 8:40 PM
Tiny
ERIC HODSON
  • MEMBER
  • 3 POSTS
I'm not sure. I'm not a mechanic at all. I was initially told that it was the timing belt now they're not sure and one of the two thinks it is something else. When I'm standing at the passenger side, I can hear it from around or beneath the back end of the engine. Though it's a 3.5 it is also sideways. I can try to get some audio tomorrow or Friday, I won't be home until then. Google searches really give me nothing to go on but, as previously mentioned, imagine the loudest and screechiest scream imaginable. That's the noise. Idles fine at first then, as soon as I drive, it gets louder with the more gas it's given. A friend told me maybe a cam bearing but said it doesn't make sense if it doesn't screech at idle. I do not know. I'll see what I can do with getting some sound for you.
E
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Wednesday, January 22nd, 2020 AT 6:44 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
I can't imagine it has anything to do with the timing belt unless one of the pulleys is locking up. However, I would think that would be heard all the time. I attached a picture of the timing belt routing diagram and circled the 3 things that could be locking up.

When you get the chance, upload the noise so I can hear it. Hopefully, I'll be able to identify it.

Take care and I'll watch for your reply.

Joe
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Wednesday, January 22nd, 2020 AT 7:44 PM
Tiny
ERIC HODSON
  • MEMBER
  • 3 POSTS
Found it. Bank 1 rear converter. Now to find one for less than $400.00 that is NY approved.
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Thursday, January 23rd, 2020 AT 10:52 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
The converter is making the noise? Is it plugged? As far as the converter, you should be able to find one (even a universal one) for a lot less. NY only requires federal emission specs. CA is different, but they both should have the same converter.

I don't know if you need it, but here is a link that shows in general how to replace a catalytic converter:

https://www.2carpros.com/articles/catalytic-converter-replacement

Here are the directions specific to your vehicle for the entire exhaust. The attached pictures correlate with the directions.

___________________________________

2003 Hyundai Truck Santa Fe V6-3.5L
Procedures
Vehicle Engine, Cooling and Exhaust Exhaust System Service and Repair Procedures
PROCEDURES

pic 1

REMOVAL
REAR MUFFLER

CAUTION: Before removing or inspecting the exhaust system, ensure that the exhaust system is cool.

pic 2

1. Disconnect the rear muffler from the front muffler.

pic 3

pic 4

2. Remove the rubber hangers and the rear muffler.

FRONT MUFFLER (INCLUDING CATALYTIC CONVERTER)

pic 5

1. Disconnect the L/H near oxygen sensor.

pic 6

2. Remove the under cover.

pic 7

pic 8

3. Remove the front muffler bolts and nuts.

pic 9

pic 10

4. Disconnect from the hanger.

INSPECTION
1. Check the mufflers and pipes for leaks, corrosion and damage.
2. Check the rubber hangers for deterioration and cracks.

INSTALLATION
1. Temporarily install the front muffler, the catalytic converter assembly and the rear muffler in this order.
2. Install the rubber hangers so that they hang equally left and right.
3. Tighten the parts securely and then confirm that there is no interference with any components.
Tightening torque: 30 - 40 Nm (300 - 400 kgf-cm, 22 - 29.5 ft. lbs.)

______________________________

Let me know if this helps or if you have other questions.

Take care,
Joe
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Thursday, January 23rd, 2020 AT 7:20 PM

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