Hey guys got a question about a Komatsu d37 dozer I'm running at work. When the dozer is working for a while the exhaust will become noticeably louder as if there was a hole in the muffler and it sounds like a lot more air is comming out of the exhaust. As soon as you step on the decel pedal the noise goes away and the exhaust sounds normal but as soon as you release the pedal to return to full throttle it returns. When the dozer is shut down there is a noise sounding like a hammer that hit a tin can once it shuts off. Just one solid think. There is no loss in power when the sound is present. Can't figure out what it might be. Any help is greatly appreciated! Thanks!
Jim
Jim
Loud exhaust Komatsu D37 under load
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