Join Date: Aug 2012
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Whining with high egt's
Have a banks intercooler kit that is roughly 1 year or 12000 miles old. 98k total on truck. I was climbing a mountain pass with weight at about 10,000 ft. Elevation. It started to make a deep whining sound at higher elevation, and next thing I know the egt's started climbing to give or take 1000 (which rarely happens) and recovery from those levels was SLOW. The sound continued as did the higher egts for the next hour home. I'm thinking there is an issue with losing pressure in tubes, but don't see any visible damage worth noting. First intuition is to replace boots at the y, which are aged more.
Am looking for input before I start tearing it apart. Thanks.
New to membership here, but not new to reading the forum. Thanks for the help in the past and going forward.