Surging issue please help!
Thread Starter
Instructor
Joined: Dec 2007
Posts: 169
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From: Nebraska
Surging issue please help!
My car: 100% Stock 2007 C6 Z51 M6 with 4,000 miles
Lately I have noticed that my car surges when I hold a gear at low-mid RPM's. I also think this issue is causing the slight idle quality issues I thout were mis-fires a few months back also.
When driving normally at operating temperature if I hold third gear and keep at a steady MPH I can feel the car surge. While this hapens I can also see a small drop in RPM's on the tach. I have scanned the car and there are zero misfires while the surge is present.
It reminds me of when tried a K&N filter on my Cobalt SS Supercharged. But I am stock down to the paper filters on my C6.
Lately I have noticed that my car surges when I hold a gear at low-mid RPM's. I also think this issue is causing the slight idle quality issues I thout were mis-fires a few months back also.
When driving normally at operating temperature if I hold third gear and keep at a steady MPH I can feel the car surge. While this hapens I can also see a small drop in RPM's on the tach. I have scanned the car and there are zero misfires while the surge is present.
It reminds me of when tried a K&N filter on my Cobalt SS Supercharged. But I am stock down to the paper filters on my C6.
Safety Car
Joined: Jan 2008
Posts: 4,711
Likes: 3
From: Middle of No where AK
If you had a misfire your check engine light would flash. You may have a loose sensor on your maf or a loose spark plug wire. I would start going over all your connections and try to find a loose one before you go and take it in thinking its a major problem. Had a surging problem with a rustang I used to own and it turned out to be a loose plug wire. Hope this helps.
Safety Car
Joined: Sep 2008
Posts: 4,296
Likes: 156
From: Location: Location: kAnSaS
you spoke to it being stock but have you done anything lately? like air filter change or anything under the hood for that matter?
A vacuum leak or intake tube leak can give you alot of issues so i would start there then keep it basic (plugs, coil, wire etc..) a "slight" missfire alot of times wont turn on the CEL but will show up on a scan. good luck, paul
A vacuum leak or intake tube leak can give you alot of issues so i would start there then keep it basic (plugs, coil, wire etc..) a "slight" missfire alot of times wont turn on the CEL but will show up on a scan. good luck, paul
Thread Starter
Instructor
Joined: Dec 2007
Posts: 169
Likes: 0
From: Nebraska
The only thing I have done lately was drive it and change the oil. I haven't had time to do much else because I was buried with work.
And hanny I also used a Tech2 and drove around for a while and got Zero misfires.
And hanny I also used a Tech2 and drove around for a while and got Zero misfires.
Drifting
Joined: Feb 2006
Posts: 1,339
Likes: 1
From: Lake Delton (WI Dells) WI
