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Prater

07-09-2007 10:04 PM

Duramax Question

When braking my engine starts idleing rough, especially at the stop signs. Just curious if anyone has experienced this or knows the problem. It idles fine after the brakes are let up on.

Its a 2003 3500 with 130K+ miles

handfulz28

07-09-2007 11:29 PM

I'm no expert, but check the power steering fluid, pump, lines. The brake system is hydraulically boosted by the PS pump.

Tim@DOA

07-12-2007 11:34 AM

Quote:

Originally Posted by Prater (Post 2192320)

I own an 03. Engine warm, idleing, hit the brake pedal, there's an audible difference, but certainly not an erratic idle. I would check the fluids like the other poster mentioned.

Rippem

07-12-2007 09:10 PM

there were some faulty hydroboost cylinders.

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