Quote:
Originally Posted by bigben
tamdle - here are some inputs.
1. Engine is noisy when running slamming down into 3rd gear. So a couple of things. First, take the doghouse cover off and add some insulation. We did this and reduced the noise level significantly. We bought the insulation from JC Whitney about $25 along with the spray glue for about another $15. Second, learn where the sweet spot is so the coach doesn't slam down. Ours is about 67 mph. Almost no down shifts, so no rise in noise. ....
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So this meant your rig does not always run at 4000 rpm? What is your normal RPM if you did notice while on normal FLAT hwy?
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