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- Location
- Memphis Tennessee
I have searched for an answer on here but cannot find my fault in another thread.
2007 M1087 Cat C7 with Pac Brake. Intermittently, I get a continuous hiss when first coming off the line and accelerating. It continues even once I am at speed. If I let off of the accelerator for 3-4 seconds and then reapply it stops. I have put a gopro underneath to look at air dryer, etc., but of course it gets stage fright and doesn't repeat. I am elbow deep in the TMs and haven't found anything yet to explain this. All help and wisdom is appreciated.
2007 M1087 Cat C7 with Pac Brake. Intermittently, I get a continuous hiss when first coming off the line and accelerating. It continues even once I am at speed. If I let off of the accelerator for 3-4 seconds and then reapply it stops. I have put a gopro underneath to look at air dryer, etc., but of course it gets stage fright and doesn't repeat. I am elbow deep in the TMs and haven't found anything yet to explain this. All help and wisdom is appreciated.
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