Diesel Noise
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Diesel Noise
We have a 08 Chevy Duramax 2500. We have 23,000 on it. Since it’s been new there has been a chirping noise in the engine. I’ve had the dealer look at it and he told me it’s normal. I’m not buying it, and was wondering if those that have a similar pickup are running into the same thing?
Jim & Jane
2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, IS Suspension, Disk Brakes
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2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, IS Suspension, Disk Brakes
Nights camped in 2012: 142
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Nights camped in 2015: 232
Nights camped in 2016: 165
- Olbird
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Re: Diesel Noise
Can the chirping noise be heard at different times, mostly when engine is not really pulling a load or letting off the gas pedal a little.
If this is what you talking about I have heard it before.
If this is what you talking about I have heard it before.
George & Julie
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Re: Diesel Noise
'08's have a history of engine chirp which is caued by the belt. Does not seem to be an issued other than noise. Some folks have reported the issue being resolved by using a NAPA or Gates belt.
David & Pam
2006 Cardinal 31RKT
2002 2500HD Duramax
2006 Cardinal 31RKT
2002 2500HD Duramax
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Re: Diesel Noise
From another post:
This likely doesn't directly apply, but may be of interest.
"Noisy Duramax Diesel… Some may question why the
owner of a rattling and compression knocking diesel
truck would complain about a minor belt chirp or squeal.
Accessory drive belt noises involving belt squeal, squeaks
and chirps have plagued the 2004–2005 Chevrolet
Silverado and GMC Sierra trucks fitted with the 6.6L
Duramax diesel engine. The condition occurs during a
cold start-up, and may continue until the engine reaches
its normal operating temperature.
For a belt noise condition, the first check should involve
a belt-to-pulley alignment check. Verify that the power
steering pump pulley is pressed onto the pump shaft in
the proper position. While the pulley should be flush
with the end of the pump shaft, it can be repositioned on
the shaft to achieve the proper belt alignment. The pulley
to shaft position variance should not exceed 0.039 inch
from the end of the pump shaft (see Fig.1).
TROUBLESHOOTING BELT NOISE
Installing a Second Belt Is Not the Solution
Some of the mentioned
trucks produced prior to
June 2004 may have an
AC compressor/power
steering pump mounting
bracket and rear power
steering mounting bracket
machined slightly out
of spec, resulting in a
misaligned power steering
pump. If this condition is
present, the drive belt will
be out of alignment with
the fan pulley, resulting in a chirping noise. When the
belt leaves the fan pulley, it will not be in alignment with
the crankshaft pulley, creating the belt noise condition. A
revised bracket is available from GM for those vehicles
produced prior to June 2004.
Vehicles produced after June 2004 have the revised
AC/power steering pump mounting bracket. The rear
power steering mounting bracket on all vehicles prior to
and after the mentioned production date may require a
modification. This modification involves drilling larger
holes into the rear mounting bracket to ensure proper
alignment when installing the mounting bolts. GM TSB 05-
06-01-018 illustrates the proper procedure and necessary
mounting bracket part number, where applicable.
Be aware that a belt chirp noise may be present during
engine shutdown on any diesel application, and this is a
normal condition, with no repairs necessary. The noise
condition occurs due to the high engine compression
and rapid deceleration of the crankshaft and drive belt
during engine shutdown, and this condition cannot be
eliminated." mightyautoparts.com
This likely doesn't directly apply, but may be of interest.
"Noisy Duramax Diesel… Some may question why the
owner of a rattling and compression knocking diesel
truck would complain about a minor belt chirp or squeal.
Accessory drive belt noises involving belt squeal, squeaks
and chirps have plagued the 2004–2005 Chevrolet
Silverado and GMC Sierra trucks fitted with the 6.6L
Duramax diesel engine. The condition occurs during a
cold start-up, and may continue until the engine reaches
its normal operating temperature.
For a belt noise condition, the first check should involve
a belt-to-pulley alignment check. Verify that the power
steering pump pulley is pressed onto the pump shaft in
the proper position. While the pulley should be flush
with the end of the pump shaft, it can be repositioned on
the shaft to achieve the proper belt alignment. The pulley
to shaft position variance should not exceed 0.039 inch
from the end of the pump shaft (see Fig.1).
TROUBLESHOOTING BELT NOISE
Installing a Second Belt Is Not the Solution
Some of the mentioned
trucks produced prior to
June 2004 may have an
AC compressor/power
steering pump mounting
bracket and rear power
steering mounting bracket
machined slightly out
of spec, resulting in a
misaligned power steering
pump. If this condition is
present, the drive belt will
be out of alignment with
the fan pulley, resulting in a chirping noise. When the
belt leaves the fan pulley, it will not be in alignment with
the crankshaft pulley, creating the belt noise condition. A
revised bracket is available from GM for those vehicles
produced prior to June 2004.
Vehicles produced after June 2004 have the revised
AC/power steering pump mounting bracket. The rear
power steering mounting bracket on all vehicles prior to
and after the mentioned production date may require a
modification. This modification involves drilling larger
holes into the rear mounting bracket to ensure proper
alignment when installing the mounting bolts. GM TSB 05-
06-01-018 illustrates the proper procedure and necessary
mounting bracket part number, where applicable.
Be aware that a belt chirp noise may be present during
engine shutdown on any diesel application, and this is a
normal condition, with no repairs necessary. The noise
condition occurs due to the high engine compression
and rapid deceleration of the crankshaft and drive belt
during engine shutdown, and this condition cannot be
eliminated." mightyautoparts.com
Jim & Jane
2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, IS Suspension, Disk Brakes
Nights camped in 2012: 142
Nights camped in 2013: 186
Nights camped in 2014: 185
Nights camped in 2015: 232
Nights camped in 2016: 165
2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, IS Suspension, Disk Brakes
Nights camped in 2012: 142
Nights camped in 2013: 186
Nights camped in 2014: 185
Nights camped in 2015: 232
Nights camped in 2016: 165
- Mike Clay
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Re: Diesel Noise
hmmm I have not heard a chirp sound in mine yet almost 35k on it. I do notice a lot of noise when the oil pressure is up do the oil being cold in the morning but that is about it. Like George said when does this happen? Normal driving or under a load, I do not use my air conditioner much in the winter unless i am defrosting my windows when I have it on auto I make sure the AC is off. Let us know when this happens and I will see if I can duplicate it on mine.
Mike, Susanna & Rudy
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2019 Silverado 3500HD Dually D/A 4x4 LTZ
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Re: Diesel Noise
I have 32K on my new truck and I have not heard the noise that you are talking about.
- campswithcritters
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Re: Diesel Noise
One of the simple joys of working on turbine aircraft for 28 yrs is that I can no longer hear high pitched noises.
Bruce & Sharon Full-time since Nov 06
Boogie, & Jack ("the critters")
Boogie, & Jack ("the critters")
Re: Diesel Noise
That was my first thought too. I wonder if the belt is chirping intermittently when the AC compressor clutch engages.dmitchem wrote:'08's have a history of engine chirp which is caued by the belt.
Rob
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Re: Diesel Noise
I'm hearing the noise anytime I'm outside of the truck and it's running. Can't hear it inside. Doesn't matter what the outside temperature is, or if it's been running for a while or just start it up.
Jim & Jane
2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, IS Suspension, Disk Brakes
Nights camped in 2012: 142
Nights camped in 2013: 186
Nights camped in 2014: 185
Nights camped in 2015: 232
Nights camped in 2016: 165
2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, IS Suspension, Disk Brakes
Nights camped in 2012: 142
Nights camped in 2013: 186
Nights camped in 2014: 185
Nights camped in 2015: 232
Nights camped in 2016: 165
Re: Diesel Noise
Jim, you could run the engine for a few minutes with the the belt removed and see if the noise goes away.
Rob
Rob
- Olbird
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Re: Diesel Noise
Belt noise or engine noise while sitting and running was not what I hear sometimes.
George & Julie
3850 RL Full Paint w/ TrailAir Spring Ride System, Kodiak Disc Brakes, TrailAir Tri-Glide Pin Box, Over 130 Mods
2022 Ford F450 DRW
3850 RL Full Paint w/ TrailAir Spring Ride System, Kodiak Disc Brakes, TrailAir Tri-Glide Pin Box, Over 130 Mods
2022 Ford F450 DRW
- Mike Clay
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Re: Diesel Noise
I know what your hearing George Guess I should be nice he is going to have a drill in his hand around my trailer
Mike, Susanna & Rudy
2016 3850RL Estate "Proto Grigio"
2019 Silverado 3500HD Dually D/A 4x4 LTZ
My dreams are too big for my wallet
Rallies attended - 32
Nights camping in 2013:159 2014:269 2015:Full Timers
2016 3850RL Estate "Proto Grigio"
2019 Silverado 3500HD Dually D/A 4x4 LTZ
My dreams are too big for my wallet
Rallies attended - 32
Nights camping in 2013:159 2014:269 2015:Full Timers
- Olbird
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Re: Diesel Noise
I wish I could hire a driver when we go camping and just show up when its parked.
I hear and feel everything while driving and always wonder WHAT IF, and the what if drives me crazy.
I hear and feel everything while driving and always wonder WHAT IF, and the what if drives me crazy.
George & Julie
3850 RL Full Paint w/ TrailAir Spring Ride System, Kodiak Disc Brakes, TrailAir Tri-Glide Pin Box, Over 130 Mods
2022 Ford F450 DRW
3850 RL Full Paint w/ TrailAir Spring Ride System, Kodiak Disc Brakes, TrailAir Tri-Glide Pin Box, Over 130 Mods
2022 Ford F450 DRW
- Mike Clay
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Re: Diesel Noise
Oh well even though it really stinks when something breaks it just turns into another adventure.
Mike, Susanna & Rudy
2016 3850RL Estate "Proto Grigio"
2019 Silverado 3500HD Dually D/A 4x4 LTZ
My dreams are too big for my wallet
Rallies attended - 32
Nights camping in 2013:159 2014:269 2015:Full Timers
2016 3850RL Estate "Proto Grigio"
2019 Silverado 3500HD Dually D/A 4x4 LTZ
My dreams are too big for my wallet
Rallies attended - 32
Nights camping in 2013:159 2014:269 2015:Full Timers
- Traveler II
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Re: Diesel Noise
True---and in the sport of Rving there is always something that needs to be fixed. I guess it's part of the fun---well sometimes.Mike Clay wrote:Oh well even though it really stinks when something breaks it just turns into another adventure.
Jim & Jane
2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, IS Suspension, Disk Brakes
Nights camped in 2012: 142
Nights camped in 2013: 186
Nights camped in 2014: 185
Nights camped in 2015: 232
Nights camped in 2016: 165
2014 Ford 350 King Ranch, Trailer Saver BD3 Air Hitch, IS Suspension, Disk Brakes
Nights camped in 2012: 142
Nights camped in 2013: 186
Nights camped in 2014: 185
Nights camped in 2015: 232
Nights camped in 2016: 165