Help Vibration / Some shaking during acceleration?
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
Help Vibration / Some shaking during acceleration?
Backround:
The car is a A4 2002 procharged. I recently added bigger 305/35/18 rear tires and have been spirited running it alot. Don't know if this would be the cause or not. How can I diagnose the problem weather tranny or driveline issues or possible couplers etc.
I did smell a slight burn (rubber smell). No noises or leaking under car just abnormal bad vibration shaking during acceleration. Ideas, advice Thanks Chris
The car is a A4 2002 procharged. I recently added bigger 305/35/18 rear tires and have been spirited running it alot. Don't know if this would be the cause or not. How can I diagnose the problem weather tranny or driveline issues or possible couplers etc.
I did smell a slight burn (rubber smell). No noises or leaking under car just abnormal bad vibration shaking during acceleration. Ideas, advice Thanks Chris
Last edited by corvet786c; Jul 16, 2017 at 04:02 PM.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
Oh yea, Nitto 555R
OK, I just started it, like it labored to start, it's like it lost power or something, Battery fully charged. The car is like put put put. Not normal Low rpms during idle. But before, I took it 30 miles away no problem. I did a hard acceleration pull, now all this? Any other ideas, I am desperate for answers before I have to spend $$$ tomorrow. THanks Chris
OK, I just started it, like it labored to start, it's like it lost power or something, Battery fully charged. The car is like put put put. Not normal Low rpms during idle. But before, I took it 30 miles away no problem. I did a hard acceleration pull, now all this? Any other ideas, I am desperate for answers before I have to spend $$$ tomorrow. THanks Chris
Last edited by corvet786c; Jul 16, 2017 at 04:35 PM.
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hmm, have you pulled the codes?... sounds like something might be causing the engine to run rough and is unrelated to the new tires
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
Maybe its me but when I removed it,the car felt like it had more power. Don't know how much timing is pulled from the tcs/abs system but the car felt stronger.
It feels like a spark plug or plug wire is out, but would that make it shake? My tune is right on. Maybe I need to check the plugs? Always use 93 octane. I just checked all connections and plugs everything is tight.
Just rolled thru the gears in the A4 no abnormal noises goes in r,n,d etc.
Last edited by corvet786c; Jul 16, 2017 at 04:48 PM.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
129 views, you guys are no help.
I had to find it myself then, problem solved, for the others interested it was a misfire, spark wires were burned thru the insulation.
I had to find it myself then, problem solved, for the others interested it was a misfire, spark wires were burned thru the insulation.
Racer
Joined: Sep 2007
Posts: 320
Likes: 28
oh no you had to figure it out all on your own?? if your gonna be an *** about it why don't try diagnosing it by yourself in the first place.
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2020 Corvette of the Year Finalist (performance mods)
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no kidding, maybe the people viewing this were also having a similar issue and seeing if they could find the answer instead of creating another thread... glad you got it figured out though and if it happens again at least you know it isn't the tires, axles, or torque tube causing the misfire
Last edited by StingrayRebel; Jul 17, 2017 at 08:10 PM.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
If I had help some else diagnose this, then I guess I done my part and glad to help them.
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,133
Likes: 139
From: Port St Lucie Florida
Fixed: it was a few of things
1. 2 Driver side spark wires burned
2. Passenger side Rocker Arm loosed. Had to straighten the lash back on valve stem.
3. Belt tensioner and adjuster bracket loosed.
Just tested car runs a lot better. Problem Fixed.
1. 2 Driver side spark wires burned
2. Passenger side Rocker Arm loosed. Had to straighten the lash back on valve stem.
3. Belt tensioner and adjuster bracket loosed.
Just tested car runs a lot better. Problem Fixed.