wheeler
12-03-2003, 13:49
Drove 1000 miles in last two days w/ my '03 Chevy 2500HD D/A (Banks exhaust brake, No Juice yet) this time NOT pulling the fifth wheel, and after two hours on the highway around 70 mph my truck had an intermittent knocking or clattering sound along with a loss of power. The sound seemed to come from center just beneath and in front of my feet.
At first it seemed related to slight changes in road surface (like go over a dip and that would initiate this problem), or possibly related to when I removed my foot from the accelerator-- you'd get this sort of rubbing sound and stumbling loss of power from the engine, like "Are we going to stall out?" The problem would last 10 seconds tops then the engine would come back and run normally for fifteen minutes then do it again.
Called OnStar and they did a diagnostic while I was driving and they found no error codes reported.
I stopped for an hour for dinner, then resumed my trip for 800 miles and it never happened again. This symptom didn't ring a bell to my dealer/service advisor and now truck is not exhibiting the problem-- but it was pretty disturbing. (I have had intermittent problem with all my dash gauges reading zero, then next start they're fine-- maybe an electronic glitch?) Any ideas? Thanks. --wheeler smile.gif
At first it seemed related to slight changes in road surface (like go over a dip and that would initiate this problem), or possibly related to when I removed my foot from the accelerator-- you'd get this sort of rubbing sound and stumbling loss of power from the engine, like "Are we going to stall out?" The problem would last 10 seconds tops then the engine would come back and run normally for fifteen minutes then do it again.
Called OnStar and they did a diagnostic while I was driving and they found no error codes reported.
I stopped for an hour for dinner, then resumed my trip for 800 miles and it never happened again. This symptom didn't ring a bell to my dealer/service advisor and now truck is not exhibiting the problem-- but it was pretty disturbing. (I have had intermittent problem with all my dash gauges reading zero, then next start they're fine-- maybe an electronic glitch?) Any ideas? Thanks. --wheeler smile.gif