2013 GS lifter noise, running rough
Thread Starter
Intermediate
Joined: Jul 2007
Posts: 26
Likes: 2
From: Rowley MA
2013 GS lifter noise, running rough
I know this issue has shown up but I would have thought GM would have solved the problem. One of my lifters started making a ticking noise, then a few miles later starting running rough, check engine and traction control fault came in (2000 miles on vette). Dealer found #5 cylinder coil wire slipped off, they replaced bad wire and I was back on the road.
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
I know this issue has shown up but I would have thought GM would have solved the problem. One of my lifters started making a ticking noise, then a few miles later starting running rough, check engine and traction control fault came in (2000 miles on vette). Dealer found #5 cylinder coil wire slipped off, they replaced bad wire and I was back on the road.
Melting Slicks
Joined: Dec 2006
Posts: 2,694
Likes: 106
For $60 shipped or so, I decided to replace all sparkplug wires with MSD superconductor 8.5mm wires at around 1K miles, which have 25 ohm resistance, rather than 800 
, so money well spent IMO. And yes, the stock ones have a tendency to slide out, because the crappy metal piece that it supposed to secure them breaks by just looking at it the wrong way. I decided to replace them as a precaution after reading of so many issues. Another alternative I learned about later is fitting the Z06 (LS7) wires, which are supposedly pretty good. Now have 5K on the '12 GS CE, and zero issues. Good luck.
, so money well spent IMO. And yes, the stock ones have a tendency to slide out, because the crappy metal piece that it supposed to secure them breaks by just looking at it the wrong way. I decided to replace them as a precaution after reading of so many issues. Another alternative I learned about later is fitting the Z06 (LS7) wires, which are supposedly pretty good. Now have 5K on the '12 GS CE, and zero issues. Good luck.
Instructor
Joined: Jun 2012
Posts: 170
Likes: 2
From: Granger Indiana
For $60 shipped or so, I decided to replace all sparkplug wires with MSD superconductor 8.5mm wires at around 1K miles, which have 25 ohm resistance, rather than 800 , so money well spent IMO. And yes, the stock ones have a tendency to slide out, because the crappy metal piece that it supposed to secure them breaks by just looking at it the wrong way. I decided to replace them as a precaution after reading of so many issues. Another alternative I learned about later is fitting the Z06 (LS7) wires, which are supposedly pretty good. Now have 5K on the '12 GS CE, and zero issues. Good luck.
, so money well spent IMO. And yes, the stock ones have a tendency to slide out, because the crappy metal piece that it supposed to secure them breaks by just looking at it the wrong way. I decided to replace them as a precaution after reading of so many issues. Another alternative I learned about later is fitting the Z06 (LS7) wires, which are supposedly pretty good. Now have 5K on the '12 GS CE, and zero issues. Good luck.Mine is a 427 LS7 vert so I should have the good plug wires, but may go ahead and buy a set of the MSD 8.5 as spares. For only $60 probably a good idea.
Brian E
