Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

'02 Making some rattle noise under load ONLY!!

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Old Nov 9, 2010 | 12:27 PM
  #1  
Snowman's Avatar
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MR.3K
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From: Grunthal Manitoba
Default '02 Making some rattle noise under load ONLY!!

got an '02 in the shop, runs great, but ONLY under load it has a rattling noise by driver side. It almost has the sound of bad valve adjustment, or sticking lifter. This only happens when driving the truck, not reving it up in park or neutral?? Any help??

---AutoMerged DoublePost---

oh ya it has 350K+ on it, used for towing dump trailer.
 

Last edited by Snowman; Nov 9, 2010 at 12:27 PM. Reason: Automerged Doublepost
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Old Nov 26, 2010 | 01:30 PM
  #2  
Torque Monster's Avatar
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I have the exact same thing

Any luck

Bump
 
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Old Nov 26, 2010 | 01:42 PM
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From: Alberta, Canada
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sounds like you have injector rattle, maybe have a bad injector.... i would get the balance rates checked out
 
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Old Nov 26, 2010 | 04:03 PM
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I replaced mine 3k ago

I'm thinking mine is failed thermostat
 
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Old Nov 28, 2010 | 03:51 PM
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2500HeavyDuty's Avatar
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the valves can go out of adjustment. its best to get t adjusted when you get your injectors changed.

when i got to mine they were over 3 times the oem clearence
 
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Old Dec 6, 2010 | 03:46 PM
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Mine happened to be a burnt ECT sensor
 
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