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Unread 07-23-2018, 11:49 AM   #1
Darklight
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Default odd sound when stopped in reverse

OK, I have been getting a weird noise that seems to come and go so it is hard to reproduce. Seems like it may be coming from the engine area. Almost like a heatshield vibrating but I checked and nothing is touching. Sounds like a vibrational type metal noise.
Happens usually when I am parked and put it in reverse or when thereís a load I guess on the engine. Only happens for a few seconds and itís when the engine is warmed up.
SO it doesnít do it in the morning. Once I get to my sons school 10 miles away.
Park, come back out, throw it in reverse and there it is. Almost like an air compressor type sound.
Something has to be vibrating somewhere. Also happens when turning in reverse more so then straight.

Any thoughts?
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Unread 07-24-2018, 12:13 PM   #2
Darklight
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Going to look at the front rotor / brake dust shields tonight, they were contacting the rotor and we had to bend them during the spindle gusset install. Wonder if they're vibrating under engine load. Odd sound for sure, happened while pulling into a driving spot this morning.
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Unread 07-24-2018, 05:56 PM   #3
momo.75
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I have had an odd vibrating sound lately as well. It is only when I am stopped with the truck in drive or reverse with the AC on. When the AC kicks in it brings the RPMs up slightly which starts the sound. We finally narrowed it down to the exhaust behind the expansion joint. I am going to replace the gasket and springs to see if that helps.
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Unread 07-24-2018, 06:25 PM   #4
Darklight
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Pulled into the driveway tonight and noticed the sound as I was coming to a stop. Could then reproduce it in reverse with my foot on the brake and it sounded like it was coming from the engine somehow or where.
Just crawled around while it was in gear with the e brake on and wide lightly feathering the throttle and the noise was coming directly from .....
....


.....


Dot dot dot dot


Hehe








The muffler itself is making a vibrating noise internally. Guess it’s time for a new one ah? !
Magnaflow anyone?


Bobby
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Unread 07-24-2018, 08:20 PM   #5
momo.75
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it could possibly be my muffler as well. It was just hard to tell where exactly it was coming from but can tell it is behind the expansion joint
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Unread 07-27-2018, 12:48 PM   #6
billynath1988
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Check the cat shield's.. i get a weird noise everyone in a while at the right angle too..
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