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Hi,
One day, this noise suddenly appears. The day before I drove my truck 100 miles nothing happens.
Now i have this rattling noise that can be hear here : http://youtu.be/4oMaOEgScTESometimes it can upset you for miles and miles or disappears without explanations.
It only happens when driving.Someone asked me to put the ‘Hoe in “D”, and, while i keep the brake pedal pressed, gently push the gas pedal down. It start to make an awful noise so I didn’t push it too far.
Any leads ?
(I’ve looked at the video about exhaust noise. I’ve hit the exhaust line several times but nothing went wrong).
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see if this link helps.
http://www.ericthecarguy.com/faq/diagnosing-noises-in-your-car
This should be an easy problem to solve… Put the car up on jacks, start it and have someone turn the wheel…
If we were to have a video where we could see speed, wheel turning and sound at one time, it may help… Looking at your feet and the window switches doesn’t help…
Sounds like something in your front wheels..
-Karl
[quote=”ToyotaKarl” post=107383]This should be an easy problem to solve… Put the car up on jacks, start it and have someone turn the wheel…
If we were to have a video where we could see speed, wheel turning and sound at one time, it may help… Looking at your feet and the window switches doesn’t help…
Sounds like something in your front wheels..
-Karl[/quote]Actually When I did the video, I was parked and drive back home. I was driving AND handling the phone that was not easy.
Wheels bearings have been replaced both last years and since my brake hose have been replaced recently, the garage would have seen anything.Anyhow, this is not my primary issue anymore. This morning the DIC displayed “Engine power reduced” and idle weirdly.
Hi guys !
Though the problem is not solved yet it saw great improvment.
I learn that transfer box on NBS Tahoe had an well known issue : there’s an anti-rattle clip that sometime got broken and let another part hit the inside of the housing, creating a hole where the oil leaks.
When i learned that I checked my oil level in the transfer case and find out it was empty. I had 2 qt of 80w90 oil ion it (can’t find Auto-Trac II from GM here) and the noise gradually vanished.
I’vve put a cardboard under the truck and I can see the oil is leaking. HOw hard/long is it for a newbee to remove the transfer case, upgrade it and replace it?
Regards.HOw hard/long is it for a newbee to remove the transfer case, upgrade it and replace it?
Fairly easy…but use the proper equipment and be safe. I would put a rebuilt unit back in with all the updates and also remember to put the drive shafts back the way they came out(same spot) Only use the GM fluid with the additive for the new unit.
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