2010 2SS Engine Bucking
My 2010 2SS has an intermittent problem; the engine bucks under any load and in any gear. By bucking I mean that the engine seems to stall for a fraction of a second then returns to running normal. When this happens the analog speedometer drops to zero with the dash lights behind it momentarily come on and occasionally in the center display the Service Stabilitrak flashes (the one with the wrench icon)
The digital speedometer remains normal displaying the current speed, the tachometer reflects the bucking by dropping a few RPMs. All the other gauges are unaffected.
No CEL code is thrown.
It can run for hours with no problem or buck several times a minute.
At first I thought it might me dirty fuel injectors or a faulty MAS (which I cleaned anyway) but no CEL code and the weird behavior of the analog speedometer pointed elsewhere; probably electrical.
Its been to the dealer twice and they've had it now for the third day. I just got a call from the dealer and they said that it looks like a data line problem and they are waiting for a call from GM.
What is a data line problem?
Has anyone else had a similar problem?
What did you do to fix it?
I also posted on ModernCamaro.com, LS1Tech and Camaro5.com
Last edited by MickGIS; 06-20-2018 at 12:40 PM.