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How Many Under-tightened Diesel Intake Clamps

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On the intake of the Diesel, there are 5 hose clamps holding together the various pieces between the air filter and the entrance to the turbo. These are the type that use a flat head screw to tighten them around the tube. When I checked mine tonight while changing my air filters, I discovered that 3 of the 5 were under-tightened--two of them so loose I could turn the screws by hand without a screwdriver. As un-metered air entering the intake has been proposed as a contributing factor to the sensor failures that some of us have experienced, this is something we should all probably check, along with visually inspecting for areas that could be drawing air. I would like as many Diesel owners as possible to check their hose clamps and report in the poll above how many were under-tightened. If you had any under-tightened clamps, post the age and mileage of your vehicle below. (2 years, 46,000 miles for me.

How many hose clamps did you find under-tightened on your Diesel intake?

  • 1

    Votes: 7 14.3%
  • 3

    Votes: 12 24.5%
  • 4

    Votes: 9 18.4%
  • All 5

    Votes: 6 12.2%
  • None

    Votes: 15 30.6%
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A pretty high percentage of people responding to this survey have found loose hose clamp(s). Interesting miss on the factory QC. Or is it? I wonder if they just work themselves loose over time due to the diesel vibration....
 

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A pretty high percentage of people responding to this survey have found loose hose clamp(s). Interesting miss on the factory QC. Or is it? I wonder if they just work themselves loose over time due to the diesel vibration....
I think they work themselves loose after the factory due to vibrations, I have a couple clamps I have tightened a couple times and I have 8650 miles on the car.
 

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I think they work themselves loose after the factory due to vibrations, I have a couple clamps I have tightened a couple times and I have 8650 miles on the car.
I have 45,000km on my car that I bought new in 2012 and the clamps have been fine. Apart from the noisy high pressure injectors there really isn't much vibration that I have noticed. Noisier than petrol, yes, but not rougher.
 

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I have 45,000km on my car that I bought new in 2012 and the clamps have been fine. Apart from the noisy high pressure injectors there really isn't much vibration that I have noticed. Noisier than petrol, yes, but not rougher.
The diesel engine in the North American Diesel Cruze is definitely rougher than the gas version. Not by much, but definitely noticeable. I test drove the gas before I bought my diesel. I notice the difference in feeling mostly in the steering wheel at lower RPMs.
 

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I rechecked my clamps at 16k miles and all of them were loose, I have tightened them at least 3 times in 12k miles I have owned the car in seven months of ownership. It seems like it is a activity on my car that needs checked every couple months.
 

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I rechecked my clamps at 16k miles and all of them were loose, I have tightened them at least 3 times in 12k miles I have owned the car in seven months of ownership. It seems like it is a activity on my car that needs checked every couple months.
That reminds me, I am about due to check mine again. They definitely seem to work themselves loose.
 
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Originally Posted by IndyDiesel
I rechecked my clamps at 16k miles and all of them were loose, I have tightened them at least 3 times in 12k miles I have owned the car in seven months of ownership. It seems like it is a activity on my car that needs checked every couple months.
That reminds me, I am about due to check mine again. They definitely seem to work themselves loose.

Maybe time to replace them with a better brand of them lol
 

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Maybe time to replace them with a better brand of them lol
I don't think it is a clamp problem, I think this engine vibrates more than a gasoline engine and the clamps are going around a rubber hose that probably gives a bit, but mostly vibration. Not really a big deal, I just check every couple months and retighted the clamps.
 

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I don't think it is a clamp problem, I think this engine vibrates more than a gasoline engine and the clamps are going around a rubber hose that probably gives a bit, but mostly vibration. Not really a big deal, I just check every couple months and retighted the clamps.
thats a strong possibility. auto zone sells these clamps that have a huge butterfly on them so you can hand tighten if needed. if plastic breaks its a simple Philips or flat under it.
 

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T-bolt band clamps might work better, than the worm-gear style.
 
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I check mine about once a week and sure enough, they start getting loosey goosey and need a turn or half to tighten them up.
 
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