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  1. #1
    Veteran Member Four Rings ZimbutheMonkey's Avatar
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    FIXED!! P1347 bank 1 cmp sensor (g40) engine speed sensor (g28) incorrect correlation

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    So I was having an issue where my cams wouldn't line up properly.

    Block 094 Bank 1 was at 30 deg, Bank 2 was at 0 deg

    Block 093 Bank 1 had no reading, Bank 2 was 0 (I think)

    Both cams appeared to be locking when the engine stopped. So I was at my wits end until I remembered a post I saw years back in a W8 forum describing how they fixed cam correlation issues on those engines.

    Anyone want to take a guess what I did.....?

    Turns out that the solenoids work off a 5 volt signal. However, they can take up to 12V (and maybe more).

    So I cut an old 2 prong plug out of an old harness I had, plugged it into the solenoid, grounded one side and then started tapping the positive lead on the positive terminal of my battery.

    I started on bank 2 as I thought it was the defective one on account of it being at 30 degrees when the engine ran. At first I didn't hear much, then after about 30-40 cycles, the clicking sound got louder. Started it up and,,, nothing... I was still getting the cam code.

    Then it dawned on me that the issue was in Bank 1 when I realized that it was stuck at 30 degrees. The reason that Bank 2 was at 0 was because that's the default position when there's a system failure.

    I took my plug, put it on the Bank 1 solenoid for about 20-30 hits and started her up again.

    BINGO!!!!! the cams are now working perfectly.

    ***One thing to note, the solenoids should make an audible 'click' when you touch the 12V source to them. If you can barely hear them, then they still need to worked back and forth until you can't miss the sound of them moving***

    I'm not sure why I've never seen anyone refer to this fix here though? I would assume that SOMEONE would have had this issue at some point.

    Regardless, if you're having cam correlation issues give this fix a try. It's a hell of a lot easier and cheaper than pulling the engine and/or replacing the cam adjusters/solenoids.

    Here's a pic of what I used to knock the solenoids loose
    20181009_011350 by zimbu themonkey, on Flickr

    ******NOTE***** this is a repeat of post 18, but I wanted it up here where people can see it.

    One other fix I should discuss is manually re-locking the adjusters.

    This happened to me twice. Basically, I would get a cam code (not sure if it was exactly the same one as in the title).

    What seemed to be happening was that on one of the engine, the adjuster wouldn't go back to it's locked position when the engine was shut off.

    What I had to do was pull the valve cover, pull the little half moon in front the adjuster out of the way and put a 14mm triple square bit on the end of the adjuster. (you'll need to use a 9/16 box end wrench to hold the bit as there's no room for a ratchet) From there, I just rotated the cam until I heard the pin 'click' into place.

    Now, what I can't say is if the adjuster not locking was because I was having solenoid issues or if it was an entirely separate issue. I highly suspect that it was the result of a bad solenoid and all I was doing by re-adjusting the adjuster manually was fixing a symptom of a failing solenoid.

    With that said, I at least wanted to document my findings in case the adjusters not locking is an entirely separate issue.

    You know, I'm really starting to wonder just how much time and money has been wasted either 1) replacing entire solenoids 2) replacing adjusters and 3) doing engine pulls when all that was required was to give the solenoids a quick zap......

    PS: I recently heard that the new 3.6 Pentastar engine actually has a programmed in function to pulse it's solenoids at 12V busts for a brief period if it detects a jam.
    Last edited by ZimbutheMonkey; 10-12-2018 at 04:44 PM.

  2. #2
    Veteran Member Four Rings VinnysS4's Avatar
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  3. #3
    Veteran Member Three Rings jakeoboy67's Avatar
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    So you force fed them with 12v to get them freed up ?

    Noice

  4. #4
    Veteran Member Four Rings q_dubz's Avatar
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    Quote Originally Posted by jakeoboy67 View Post
    So you force fed them with 12v to get them freed up ?

    Noice
    CONGRATS, you read correctly!

  5. #5
    Veteran Member Three Rings jakeoboy67's Avatar
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    Quote Originally Posted by q_dubz View Post
    CONGRATS, you read correctly!
    I did my best

  6. #6
    Veteran Member Four Rings ZimbutheMonkey's Avatar
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    Quote Originally Posted by jakeoboy67 View Post
    So you force fed them with 12v to get them freed up ?

    Noice
    You got it Pontiac

    Just to clarify one point though, it was a series of quick zaps. I didn't ever just leave the 12V on for more than a half second.

  7. #7
    Established Member Two Rings
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    Wow that's a pretty smart fix

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  8. #8
    Veteran Member Three Rings
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    Do you plan to eventually replace it?

  9. #9
    Veteran Member Four Rings ZimbutheMonkey's Avatar
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    Quote Originally Posted by Kambesama View Post
    Do you plan to eventually replace it?
    Until it breaks, I ain't fixing it lol (knock on wood)

    Quote Originally Posted by Squrl View Post
    Wow that's a pretty smart fix

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    Thanks like I said though, I'm really surprised that this isn't common knowledge around here. I know this HAS to be a common issue on these motors and to be honest, the fix that I used would have been apparent to just about anyone who did a cursory search on Google.

    While I don't want to make my point at the expense of other members, I have to say that I can't help but feel that there's a certain attitude of learned helplessness on the B6 B7 S4/RS4 forum. Again, I'm NOT casting any judgement, but I REALLY encourage members here to experiment with their own ideas in terms of solutions and advancements.

    Anyway, I guess it is what it is, so thanks again for the kind words guys and I'm honestly glad that I can be of assistance .
    Last edited by ZimbutheMonkey; 10-09-2018 at 01:30 PM.

  10. #10
    Account Terminated Two Rings
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    [QUOTE=ZimbutheMonkey;13335553]So I was having an issue where my cams wouldn't line up properly.

    Block 094 Bank 1 was at 30 deg, Bank 2 was at 0 deg

    Block 093 Bank 1 had no reading, Bank 2 was 0 (I think)

    Both cams appeared to be locking when the engine stopped. So I was at my wits end until I remembered a post I saw years back in a W8 forum describing how they fixed cam correlation issues on those engines.

    Anyone want to take a guess what I did.....?

    Turns out that the solenoids work off a 5 volt signal. However, they can take up to 12V (and maybe more).

    So I cut an old 2 prong plug out of an old harness I had, plugged it into the solenoid, grounded one side and then started tapping the positive lead on the positive terminal of my battery.

    I started on bank 2 as I thought it was the defective one on account of it being at 30 degrees when the engine ran. At first I didn't hear much, then after about 30-40 cycles, the clicking sound got louder. Started it up and,,, nothing... I was still getting the cam code.

    Then it dawned on me that the issue was in Bank 1 when I realized that it was stuck at 30 degrees. The reason that Bank 2 was at 0 was because that's the default position when there's a system failure.


    I took my plug, put it on the Bank 1 solenoid for about 20-30 hits and started her up again.

    BINGO!!!!! the cams are now working perfectly.

    ***One thing to note, the solenoids should make an audible 'click' when you touch the 12V source to them. If you can barely hear them, then they still need to worked back and forth until you can't miss the sound of them moving***

    I'm not sure why I've never seen anyone refer to this fix here though? I would assume that SOMEONE would have had this issue at some point.

    Regardless, if you're having cam correlation issues give this fix a try. It's a hell of a lot easier and cheaper than pulling the engine and/or replacing the cam adjusters/solenoids.

    Here's a pic of what I used to knock the solenoids loose
    20181009_011350 by zimbu themonkey, on Flickr
    You can do this with vag com

  11. #11
    Veteran Member Four Rings ZimbutheMonkey's Avatar
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    Quote Originally Posted by Hans solo View Post
    You can do this with vag com
    To a degree, but the output tests will only give the solenoid 5V. If it's stuck, you need to give it a higher voltage level than it normally sees to break it loose inside.

  12. #12
    Established Member Two Rings A8LOOONG's Avatar
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    Quote Originally Posted by ZimbutheMonkey View Post
    To a degree, but the output tests will only give the solenoid 5V. If it's stuck, you need to give it a higher voltage level than it normally sees to break it loose inside.
    It sounds like you found a nice solution but why were they stuck in the first place?

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  13. #13
    Veteran Member Four Rings q_dubz's Avatar
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    Quote Originally Posted by A8LOOONG View Post
    It sounds like you found a nice solution but why were they stuck in the first place?

    Sent from my SAMSUNG-SM-G891A using Audizine mobile app
    they get stuck due to oil varnishing. Best bet is to soak em in parts cleaner for a few days and cycle them with 12v power every so often during that time to get the cleaner in everywhere.

  14. #14
    Established Member Two Rings A8LOOONG's Avatar
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    Quote Originally Posted by q_dubz View Post
    they get stuck due to oil varnishing. Best bet is to soak em in parts cleaner for a few days and cycle them with 12v power every so often during that time to get the cleaner in everywhere.
    Ahhhh, I get it. I'm not 100% familiar but maybe you ought to get them out of there and soak them anyway -- or replace? BTW, gasoline is an excellent soak material for parts like this too.

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  15. #15
    Veteran Member Four Rings q_dubz's Avatar
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    Quote Originally Posted by A8LOOONG View Post
    Ahhhh, I get it. I'm not 100% familiar but maybe you ought to get them out of there and soak them anyway -- or replace? BTW, gasoline is an excellent soak material for parts like this too.

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    not an easy job to get them outta there

  16. #16
    Veteran Member Four Rings mad70sx's Avatar
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    Wow, nicely done Zimbu. Those electrical cam adjusters are not exactly inexpensive to replace. Nice job thinking outside of the box.
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  17. #17
    Veteran Member Four Rings ZimbutheMonkey's Avatar
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    Quote Originally Posted by mad70sx View Post
    Wow, nicely done Zimbu. Those electrical cam adjusters are not exactly inexpensive to replace. Nice job thinking outside of the box.
    Well thank you kind sir

  18. #18
    Veteran Member Four Rings ZimbutheMonkey's Avatar
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    ******NOTE*****

    One other fix I should discuss is manually re-locking the adjusters.

    This happened to me twice. Basically, I would get a cam code (not sure if it was exactly the same one as in the title).

    What seemed to be happening was that on one of the engine, the adjuster wouldn't go back to it's locked position when the engine was shut off.

    What I had to do was pull the valve cover, pull the little half moon in front the adjuster out of the way and put a 14mm triple square bit on the end of the adjuster. (you'll need to use a 9/16 box end wrench to hold the bit as there's no room for a ratchet) From there, I just rotated the cam until I heard the pin 'click' into place.

    Now, what I can't say is if the adjuster not locking was because I was having solenoid issues or if it was an entirely separate issue. I highly suspect that it was the result of a bad solenoid and all I was doing by re-adjusting the adjuster manually was fixing a symptom of a failing solenoid.

    With that said, I at least wanted to document my findings in case the adjusters not locking is an entirely separate issue.

    You know, I'm really starting to wonder just how much time and money has been wasted either 1) replacing entire solenoids 2) replacing adjusters and 3) doing engine pulls when all that was required was to give the solenoids a quick zap......

    PS: I recently heard that the new 3.6 Pentastar engine actually has a programmed in function to pulse it's solenoids at 12V busts for a brief period if it detects a jam.

  19. #19
    Registered Member One Ring
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    Just a follow up to this thread, I had a cam allocation code and misfires on all 4 cylinders on that bank in a 4.2 FSI in a Touareg, I researched like crazy and determined I’d be pulling the motor. I gave this a shot and it worked, ran rough for a few but now 5 miles in no timing code or misfires. Before I couldn’t let the car run for a minute without the code coming up. Could be a temporary fix but I had the same experience with the first few clicks being quiet and progressively getting louder. Gave each solenoid 30-40 zaps but I think it was ready after 10. Good thinking on figuring this out. Took like 10 minutes to splice an old connector to a jump box and do the whole process

  20. #20
    Veteran Member Four Rings ZimbutheMonkey's Avatar
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    Quote Originally Posted by DoyleMcpoyle View Post
    Just a follow up to this thread, I had a cam allocation code and misfires on all 4 cylinders on that bank in a 4.2 FSI in a Touareg, I researched like crazy and determined I’d be pulling the motor. I gave this a shot and it worked, ran rough for a few but now 5 miles in no timing code or misfires. Before I couldn’t let the car run for a minute without the code coming up. Could be a temporary fix but I had the same experience with the first few clicks being quiet and progressively getting louder. Gave each solenoid 30-40 zaps but I think it was ready after 10. Good thinking on figuring this out. Took like 10 minutes to splice an old connector to a jump box and do the whole process
    AWESOME MAN!!! Sorry for the delay in getting back to you with the PM, but it looks like you worked it out on your own, good job Now go take the money you saved and get a nice set of catless downpipes and a good X pipe exhaust

  21. #21
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    9 month Update to this, my car is still fixed from this. I ended up pulling the sensors, submerging them in cleaner and hitting them w/12v while submerged and the codes went away for good. Again great find on this fix

  22. #22
    Veteran Member Four Rings VinnysS4's Avatar
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    Quote Originally Posted by DoyleMcpoyle View Post
    9 month Update to this, my car is still fixed from this. I ended up pulling the sensors, submerging them in cleaner and hitting them w/12v while submerged and the codes went away for good. Again great find on this fix
    The OP will go down as a legend for this one. RIP Tyler. Even in death, you are helping the community . Thank you Brother


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  23. #23
    Established Member Two Rings kgw's Avatar
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    Does anybody know where to source VW/Audi electrical connectors? I want to build a diagnostic/repair kit for my VVT solenoids on my 3.2l vr6 A3...I'm about ready to start trolling salvage yards, as new ones are scarce as hen's teeth!
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  24. #24
    Veteran Member Four Rings JimmyBones's Avatar
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    Quote Originally Posted by kgw View Post
    Does anybody know where to source VW/Audi electrical connectors? I want to build a diagnostic/repair kit for my VVT solenoids on my 3.2l vr6 A3...I'm about ready to start trolling salvage yards, as new ones are scarce as hen's teeth!
    Cheapest route is junkyards but you can buy new ones from the dealership along with terminal wires too. Just need the part numbers.

  25. #25
    Veteran Member Four Rings Zolli's Avatar
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    Quote Originally Posted by kgw View Post
    Does anybody know where to source VW/Audi electrical connectors? I want to build a diagnostic/repair kit for my VVT solenoids on my 3.2l vr6 A3...I'm about ready to start trolling salvage yards, as new ones are scarce as hen's teeth!
    I just snag mine from junkyards. That way they only cost about $2 each. I just snip them off of A4s. Make sure you get one of those pin connector release key sets for when you’re back at the bench.

  26. #26
    Established Member Two Rings kgw's Avatar
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    Thumbs up

    Sounds good...I did find an intake pigtail at Rock Auto, even German made. I'll be going to the yards for the exhaust though. I have the release kit already, due to swapping some TT seats into the A3
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  27. #27
    Established Member Two Rings kgw's Avatar
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    Looks like the intake cam VVT solenoid is out of action...The exhaust cam VVT can be heard when I energize it with 12v, but the intake cam VVT is silent. time!
    A3 3.2l, HPA Gen 2 Haldex, HPA DSG Stage 2, BBS RS 320's, HPA SHS, TAR-OX 6-Pot Calipers/Discs, Shricked, UM ecu tune

  28. #28
    Established Member Two Rings kgw's Avatar
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    It's done...Now you see 'em:



    Now you don't:



    New solenoids installed:



    The engine is now running nicely
    A3 3.2l, HPA Gen 2 Haldex, HPA DSG Stage 2, BBS RS 320's, HPA SHS, TAR-OX 6-Pot Calipers/Discs, Shricked, UM ecu tune

  29. #29
    Veteran Member Four Rings Zolli's Avatar
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    Quote Originally Posted by kgw View Post
    The engine is now running nicely
    Great job!

  30. #30
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    I'm having problems with my 2005 Audi S4 B6 4.2 misfiring on bank 1. I tried this fix using insulated alligator clips on the two posts leading to the solenoid. No joy for me. BUT - I did it while the engine was running. Should I do it while the engine is OFF?

    I thinned the oil with SeaFoam and things got better. But when I changed the oil back to "full strength" 0W-40 Mobile 1 the misfires came back with a passion!

    Wish my adjusters were in the front like your VW's!!! PITA to get at on the 4.2 S4 engine with the adjusters, solenoids, timing chains etc at the back of the engine. But I'm about to try pulling the solenoid and soaking it.

    Great thread, thanks for keeping it going!!!

    Russ

    Oh, here are the VCDS codes I'm getting after changing the oil:

    Component: 4.2L V8/5V G 0010
    5 Faults Found:
    16684 - Random/Multiple Cylinder Misfire Detected
    P0300 - 001 - - MIL ON
    16685 - Cylinder 1
    P0301 - 001 - Misfire Detected - MIL ON
    16687 - Cylinder 3
    P0303 - 001 - Misfire Detected - MIL ON
    16686 - Cylinder 2
    P0302 - 001 - Misfire Detected - MIL ON
    17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28)
    P1340 - 002 - Incor. Correlation - Intermittent - MIL ON

    When the oil was thinned by SeaFoam I was only getting P0301, 3, occasionally 2 and rarely 4. All bank 1. The previous owner did a timing chain service and didn't replace the adjusters as they were still in pretty good shape.

  31. #31
    Veteran Member Four Rings Rol-co's Avatar
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    Quote Originally Posted by RussAdams View Post
    I'm having problems with my 2005 Audi S4 B6 4.2 misfiring on bank 1. I tried this fix using insulated alligator clips on the two posts leading to the solenoid. No joy for me. BUT - I did it while the engine was running. Should I do it while the engine is OFF?

    I thinned the oil with SeaFoam and things got better. But when I changed the oil back to "full strength" 0W-40 Mobile 1 the misfires came back with a passion!

    Wish my adjusters were in the front like your VW's!!! PITA to get at on the 4.2 S4 engine with the adjusters, solenoids, timing chains etc at the back of the engine. But I'm about to try pulling the solenoid and soaking it.

    Great thread, thanks for keeping it going!!!

    Russ

    Oh, here are the VCDS codes I'm getting after changing the oil:

    Component: 4.2L V8/5V G 0010
    5 Faults Found:
    16684 - Random/Multiple Cylinder Misfire Detected
    P0300 - 001 - - MIL ON
    16685 - Cylinder 1
    P0301 - 001 - Misfire Detected - MIL ON
    16687 - Cylinder 3
    P0303 - 001 - Misfire Detected - MIL ON
    16686 - Cylinder 2
    P0302 - 001 - Misfire Detected - MIL ON
    17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28)
    P1340 - 002 - Incor. Correlation - Intermittent - MIL ON

    When the oil was thinned by SeaFoam I was only getting P0301, 3, occasionally 2 and rarely 4. All bank 1. The previous owner did a timing chain service and didn't replace the adjusters as they were still in pretty good shape.
    I had no cam code's but misfires only, replaced the adjuster in car and flushed the solenoid with a brake cleaner while tapping it at 12v. The adjuster was worn out with an edge on it.

    https://www.audizine.com/forum/showt...1#post14645564
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  32. #32
    Established Member Two Rings
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    Quote Originally Posted by Rol-co View Post
    I had no cam code's but misfires only, replaced the adjuster in car and flushed the solenoid with a brake cleaner while tapping it at 12v. The adjuster was worn out with an edge on it.

    https://www.audizine.com/forum/showt...1#post14645564
    Thanks for that!

    So you did the tap trick while the solenoid was out of the car, and not in the car running. Nice.

    I'm going to give this a try this week. Pull the solenoid and see if I can clean and free it up. I always have brake cleaner around.

    Did you pull the engine to get at the adjusters?

    Russ
    Last edited by RussAdams; 01-02-2022 at 09:51 AM.

  33. #33
    Veteran Member Four Rings VinnysS4's Avatar
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    Quote Originally Posted by RussAdams View Post
    Thanks for that!

    So you did the tap trick while the solenoid was out of the car, and not in the car running. Nice.

    I'm going to give this a try this week. Pull the solenoid and see if I can clean and free it up. I always have brake cleaner around.

    Did you pull the engine to get at the adjusters?

    Russ
    You can pull the adjusters and the solenoid with the engine in the car. The adjusters are a pita, but still doable. The solenoid can be swapped for a cheaper one than the oem housing/solenoid combo.

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  34. #34
    Veteran Member Four Rings Rol-co's Avatar
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    Quote Originally Posted by RussAdams View Post
    Thanks for that!

    So you did the tap trick while the solenoid was out of the car, and not in the car running. Nice.

    I'm going to give this a try this week. Pull the solenoid and see if I can clean and free it up. I always have brake cleaner around.

    Did you pull the engine to get at the adjusters?

    Russ
    Nope in car, its doable but a pain in the ass to get the chain cover bolts out, there is one from the bottom up. And the water pipe above the exhaust manifold has one bolt at a crazy place, took me a while.
    I even had the intake manifold still on it.
    Only milk and juice come in two liters, "05 S4 B7 tipt Avant phantomschwarz/schwarz

  35. #35
    Established Member Two Rings
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