I bought a 04 Chevy Tahoe recently and its starting to make loud pinging
noise, almost a bell like sound, around the bottom part of the vehicle
especially after I drive and sitting idle.
The car is new and it now has about 850 miles on it but the loud sound
started around the 650 mile mark. I conducted the traditional 500 mile
break-in period and even changed the oil at 550. After the break-in period,
I started to drive a little more normal.
I know the small clicking noise is normal because of the metal contracting
but I think the bell sound is related. I'm not sure. (shrug)
Will this loud ping sound go away or should I start to worry?
Thanks in advance.
Warranty item. Take it back to the dealer and have them check it out.
|I bought a 04 Chevy Tahoe recently and its starting to make loud pinging
| noise, almost a bell like sound, around the bottom part of the vehicle
| especially after I drive and sitting idle.
| The car is new and it now has about 850 miles on it but the loud sound
| started around the 650 mile mark. I conducted the traditional 500 mile
| break-in period and even changed the oil at 550. After the break-in period,
| I started to drive a little more normal.
| I know the small clicking noise is normal because of the metal contracting
| but I think the bell sound is related. I'm not sure. (shrug)
| Will this loud ping sound go away or should I start to worry?
| Thanks in advance.
Well, it looks like this is an already known problem:
Make : CHEVROLET
Model : TAHOE
Year : 2004
Manufacturer : GENERAL MOTORS CORP.
Service Bulletin Num : 030605008
Date of Bulletin: NOV 01, 2003
NHTSA Item Number: 10005576
Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
ADVANCE SERVICE INFORMATION - EXHAUST SYSTEM POPPING/SNAPPING NOISE WHEN
VEHICLE IS HOT, AT IDLE OR IMMEDIATELY AFTER VEHICLE IS SHUT OFF.
See the thread on this group about the same problem and it is mentioned a
lot at www.automotiveforums.com. It's a faulty exhaust or muffler. Mine
does it and drives me nuts. (2004 GMC Yukon, started at 600 miles, now have
2800 miles) I can hear it when I am driving. The dealer told me GM is
waiting on a "fix" for it for a year. Sounds like the big stall and ignore
to me; He did not seem too interested. I am and others are also. Complain to
GM loudly. The squeaky wheel gets the grease.
Well, according to the chevy dealer down the street from here, there seems
to be a fix now available. They need to adjust the exhaust brackets and
motor mounts per the service information. That will repair the cooling ping
I took mine for 3000 mi service the other day. The svc mgr told me the "fix"
was for the 6L engine and not my 5.3. He couldn't explain to me why GMC
would not authorize a repair. I asked him why they sell GMC vehicles with
known defects and he told me to complain to GMC.
Hmmm, if this particular bulletin is only for the 6.0L, then GM seems to
think there is a problem with the 6.0L only, which is NOT the case.
I read somewhere that the "fix" was supposed to be out mid-October, which a
"fix" is out now but for the wrong model?
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