'02 A6 w/3.0L idles rough, misfires and found low compression
Junior Member
Joined: Apr 2010
Posts: 1
Hi, I have an 3.0 V6 intake manifold sitting in my garage. It is just the manifold, no injectors, change-over mechanism/valve or vacuum actuators. I got it from a guy on "craigslist", it came off a car with 58k miles. If you are interested contact me at: adistoe82@yahoo.com
1st Gear
Joined: Oct 2006
Posts: 236
From:
looking at those pics it looks like the block could be damaged between the two cylinders , not just the head gasket .. could be bye bye engine .. i would have that assessed more closely before pouring money into it ..
1st Gear
Joined: Dec 2008
Posts: 140
From: West Palm Beach, FL
Look for a new/used intake manifold.
Try Shokan.com or any junkyard.
Mine was a pita to seal and it was in good shape!!!!!!!
It kept leaking through the bolt holes I finally used Indian Head on the whole thing and permatex on each bolt and it sealed up.
How is the block surface and heads Straight or warped????
Use some Indian Head gasket sealer on those head gaskets and you will probably have to glass those heads when your done to completely seal them. However Bars and others now have a leave in treatment for the cooling system and it works great. But that's only if you develop a small coolant leak into the cylinder after your done. I'm just mentally preparing you.
Make damn sure you have new valve seals on those heads before re-installing those are most likely all burnt to **** and will leak down into the cylinder causing misfires. (That was the problem with mine)
Also the o-rings for the crossover pipe and the front and back cam cover gaskets all need to be oem only place I could find them. aftermarkets are all wrong part or size.
But if your clever you could re-use them with some sealer.
If you need to know where I went for what parts PM me. and I'll answer you back in the thread. I'm not on every night.
OH and I don't know how much everyone has noticed but most of the engines I have seen the past two years torn down this far are 3.0's Just an observation.
Try Shokan.com or any junkyard.
Mine was a pita to seal and it was in good shape!!!!!!!
It kept leaking through the bolt holes I finally used Indian Head on the whole thing and permatex on each bolt and it sealed up.
How is the block surface and heads Straight or warped????
Use some Indian Head gasket sealer on those head gaskets and you will probably have to glass those heads when your done to completely seal them. However Bars and others now have a leave in treatment for the cooling system and it works great. But that's only if you develop a small coolant leak into the cylinder after your done. I'm just mentally preparing you.
Make damn sure you have new valve seals on those heads before re-installing those are most likely all burnt to **** and will leak down into the cylinder causing misfires. (That was the problem with mine)
Also the o-rings for the crossover pipe and the front and back cam cover gaskets all need to be oem only place I could find them. aftermarkets are all wrong part or size.
But if your clever you could re-use them with some sealer.
If you need to know where I went for what parts PM me. and I'll answer you back in the thread. I'm not on every night.
OH and I don't know how much everyone has noticed but most of the engines I have seen the past two years torn down this far are 3.0's Just an observation.
Thread Starter
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Junior Member
Joined: Nov 2005
Posts: 8
Hi, I have an 3.0 V6 intake manifold sitting in my garage. It is just the manifold, no injectors, change-over mechanism/valve or vacuum actuators. I got it from a guy on "craigslist", it came off a car with 58k miles. If you are interested contact me at: adistoe82@yahoo.com
Thread Starter
|
Junior Member
Joined: Nov 2005
Posts: 8
Well after a ton of work I finally got the car back together. It started right up (ok well actually it didn't because I had the fuel lines reversed, oops) but ran a bit rough when it was warming up (idling at about 650rpm). I could also here slight misfiring coming from the intake, I was like s$#*. Compression is still not where it needs to be. I threw in the towel and called it a night. The next day I fired it up and it ran much better. I upped the idle slightly because it was a bit low at 680 by going into adaptation. Now its running very smooth. I think the block and head had to go through an expand/contract cycle to fully seat. I now do not here any misfiring at all. Great!
So I drove it to work today, engine pulls strong, tranny shifts nice but when cruising on the highway the torque converter wasnt locking up. When I get home I vagcom it and son of a b%(&$, I get the dreaded 17125 (Torque converter clutch circuit performance or stuck off). I checked the fluid and it wasn't low but it was hotter than the recommended fill temp so I'll check when its cooler. The fluid did not smell burnt at all but was a milky grey/black.
Just great. What the heck to I do? TC R/R is like $2000! Grrrr I love Audi's but whats next?!?! Apparently the 5HP-19 Audi tranny's are notorious for blown TCs.
I'm about ready to just sell the thing as is. It drives great besides locking the TC.
-Paul
So I drove it to work today, engine pulls strong, tranny shifts nice but when cruising on the highway the torque converter wasnt locking up. When I get home I vagcom it and son of a b%(&$, I get the dreaded 17125 (Torque converter clutch circuit performance or stuck off). I checked the fluid and it wasn't low but it was hotter than the recommended fill temp so I'll check when its cooler. The fluid did not smell burnt at all but was a milky grey/black.
Just great. What the heck to I do? TC R/R is like $2000! Grrrr I love Audi's but whats next?!?! Apparently the 5HP-19 Audi tranny's are notorious for blown TCs.
I'm about ready to just sell the thing as is. It drives great besides locking the TC.
-Paul
Thread Starter
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Junior Member
Joined: Nov 2005
Posts: 8
So I bought it for 2800 thinking it was a bad coil pack or another sensor. Now that I have another $700 in parts into it (350 for gaskets/seals and 350 for TB/idlers/WP/thermostat/ECS) which puts me at $3500 vested for a car that has 140k. I was hoping this would be it.
What should I do?!?
2nd Gear
Joined: Oct 2007
Posts: 965
From:
17125 code:
TC locks but lags with unlocking and does not meet the ECU expectations.
Audi was selling faulty TC 3 years after the problem was identified - ignorance or not that big of a deal=>profits and mesmerized users?
The lockup seal is to blame, but some repair info suggests it might be due to electrical issues (wiring, speed, TC sensors) , or combination of both.
People are reporting 40k + driving with the code with no drive ability issues.
Some are rebuilding the TC, some professionals state that TC is non-nonrefundable...
Audi sells upgraded version of TC - no data it was ever implemented in production cars, or it has same problems that appear after 60k...
Some reports indicate the code comes up while cornering fast, sharp from locked TC => the fluid moves, splashes, sensors are on-off fluid.
People are filling in cold - more fluid in the transmission- as a solution.
The labor is 17h book=>playing with replacement TC or rebuild or any TC could be costly (at least).
And TC not something one could buy for cheap from the Chinese comrades..
One could hope and wait for class action or recall or just dump the car....
TC locks but lags with unlocking and does not meet the ECU expectations.
Audi was selling faulty TC 3 years after the problem was identified - ignorance or not that big of a deal=>profits and mesmerized users?
The lockup seal is to blame, but some repair info suggests it might be due to electrical issues (wiring, speed, TC sensors) , or combination of both.
People are reporting 40k + driving with the code with no drive ability issues.
Some are rebuilding the TC, some professionals state that TC is non-nonrefundable...
Audi sells upgraded version of TC - no data it was ever implemented in production cars, or it has same problems that appear after 60k...
Some reports indicate the code comes up while cornering fast, sharp from locked TC => the fluid moves, splashes, sensors are on-off fluid.
People are filling in cold - more fluid in the transmission- as a solution.
The labor is 17h book=>playing with replacement TC or rebuild or any TC could be costly (at least).
And TC not something one could buy for cheap from the Chinese comrades..
One could hope and wait for class action or recall or just dump the car....
Last edited by nemohm; Sep 22, 2010 at 11:33 AM.
2nd Gear
Joined: Mar 2009
Posts: 1,227
From: New York
If you're motivated enough you can have the TC rebuilt if I remember correctly another member sent one out for a couple hundred. I'll look for the thread.
The unfortunate reality is that the TC has been blown a while and the previous owner never repaired it and kept driving it with all of it's problems until it blew up. Now you have the job of sorting through the maze of problems. What FUN!!!!
The unfortunate reality is that the TC has been blown a while and the previous owner never repaired it and kept driving it with all of it's problems until it blew up. Now you have the job of sorting through the maze of problems. What FUN!!!!
2nd Gear
Joined: Mar 2009
Posts: 1,227
From: New York
Torque converters
DACCO of Detroit
http://www.daccoinc.com
In his thread hi said he paid $109.00, That's correct I'm not missing any zeros.
Here is a link to his thread.
https://www.audiforums.com/forum/sho...d.php?t=122177
DACCO of Detroit
http://www.daccoinc.com
In his thread hi said he paid $109.00, That's correct I'm not missing any zeros.
Here is a link to his thread.
https://www.audiforums.com/forum/sho...d.php?t=122177