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Discussion Starter · #1 ·
2009 C6 base model

25,000 miles

Started her up, and immediately got traction control needs service, and active handling needs service messages.

Tried driving because I had to get home, engine sounded very different, like it was hitting the rev limiter all the time, and it was louder than normal, like the dual mode exhaust was stuck in "loud".

Got home (only about 2 miles). Looked under the hood, tugged on wires to see if something was loose. Sure enough, third spark plug wire from front on drivers side was hanging off its coil. It was still on the plug okay however.

I bought this car new off the truck from GM and it has never been in for service or ever been serviced in any way.

I took off the drivers side engine "appearance cover" and plugged the wire back into its coil. It did NOT click satisfactorily. I looked in the end of it and it seemed like the other plugs, but the other plugs clicked into place when I pushed them back on after inspecting them.

ON TO PART 2

Now I have frequent "traction control" "active handling" and "brake fluid" messages/lights while driving. Sometimes the brake fluid light/message comes on and goes off a few seconds later. If I restart the car the messages all clear for a while, which can be hours of driving and 100+ miles.

The car drives normal and has normal power. The brakes act normal. The brake fluid is right at the middle of the resevoir (I cant find the "min" mark.

Anyone experience this?

I DO NOT want to take my car to the dealer and have them:

-scratch the interior/exterior
-not fix the problem
-break something else
-waste my time

like EVERY other dealer has with every other car I've owned.

I'm thinking maybe two are going on:

A)The plug wire is still loose/damaged, and the sparks going hither nither are causing the error messages.

B)The first time the plug wire came loose and the engine was missing, the willy nilly sparks DAMAGED the electronics.

I think its A)
 

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Discussion Starter · #4 ·
okay will do.

what do we mark this up to? poor quality spark plug wires?

i wonder if anything could slowly bend that spring wide...maybe excessive engine movement because of a broken engine mount? (wild a$$ guess)


:agree:

Also the metal clip inside the spark plug wire boot may be not be making good contact with the spark plug ....get some pliers and crimp the metal clip so that it is tighter..Then you should here the click when you install it back on the spark plug.
 

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Discussion Starter · #5 ·
Start by pulling codes and seeing if you are still getting a miss. If that plug is seeking an alternate means to ground through a cracked insulator or poor connection, all sorts of things can go wrong. If you are not getting a positive lock with that wire, by all means replace it now. You will need to anyway. Let us know what codes you get and we can advise further.
im trying to decide on a code reader ASAP...not sure if i should spend $60 for a read/erase...or spend $200 for a read live data/datalog, etc..
 

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Discussion Starter · #7 ·
My car broke down yesterday with the EXACT same symptoms. Found your post, went out to my car and sure enough, the EXACT same spark plug wire hanging down. I cannot thank you enough for your post..... saved me big time. I was able to fix the car without my husband or a mechanics help. :buhbye:
yay! im glad to hear that!
 
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