2011 GTI 135,000 miles Car was throwing intake code 008213 for a couple of months but still getting 30MPG. One day I was getting a miss fire so decided it was time to rip it apart. I'm doing valve cleaning, new intake manifold, sent the injectors out for ultrasonic cleaning, and new water pump. I noticed that the far right intake valve is not opening or closing when I turn the motor over. All other valves operate properly. I have spun the motor by hand and by cranking with the fuel pump fuse out. The valve never moves, stayed in the closed position at all times. When I was doing the cleaning I may have spun the motor counter clockwise not knowing till after the fact to spin it clockwise. I was only spinning the motor with pulling/ pushing on the belt so I didn't get many turns on it. Even then I never remember the valve opening or closing. When I cranked it over with the battery/ starter nothing sounded "bad". Thoughts? Did my screw up throw something off with the timing? Wouldn't more than one valve be doing that if that were the case?
Well that and you never spin the motor over by pulling on the belt or trying to turn the camshafts, the tensioner is where it is for a reason and you're defeating the whole purpose of it. I'd be, at the very least 1) finding out why that valve isn't opening and 2) doing a leak down test to see if you bent any valves and double checking the timing if the leak down test is ok. If timing is off more than 2-3 teeth you may have bent valve, im assuming it's an interference engine.
You'd be very hard pressed to make me believe you bent a valve turning it forward or backward by hand. The tensionser holds tension on it all the time, so even if you don't turn it the right way, your not going to bend a valve. Sounds like it was bent before hand, hence it not moving up and down. It's bent just below the face enough to keep it open, but not enough for contact. Hence throwing an intake code. That or the cam is garbage. What engine is it. My girls Jetta is the 1.8t motor and it IS a contact motor. I'm not sure if the 2.0 or others are.
Send me the VIN, I'll have my krautmobile guy check if it's one of the affected models for a timing chain and tensioner issue. Buddy's 2012 A3 was on the list, might have some recourse through VW if it's timing component related.
Pickled, Chains and tensioner were just changed by a local indy shop with OEM parts. But yeah it was part of the ongoing lawsuit, not holding my breath I'll see a cent.
Not what I'm really saying. His issues may be two fold now. If he jumped the timing by rotating the engine backwards by rotating a cam rather than at the crank, and then cranked it, surely could bend valves. In fact I just tore down an engine today where the guy had timing codes and he thought he'd get in there himself and proceeded to knock it out of time even further, fortunately he didn't crank or rotate the engine from that point on. Most tensioners are oil fed and have a ratcheting pawl, forcing an engine backwards in rotation doesn't necessarily mean it's going to jump but there is a chance. I see it more with roller chains, his engine has that inverted tooth which i think is more robust. I'm not trying to scare him, just pointing out it may be worth checking before venturing further, then again it may not matter depending on what the reason his intake valve isn't moving... Gotta check it out.
Spitz, I only spun the engine via the serpentine belt running to the crank or at the crank, never the camshaft alone. I have never personally had the engine open, not even the valve cover off.
Only one valve? Pull the cam cover. Turn the engine at the crank by hand. Watch. Cams hollow. Lobes pressed on.
Pre-2012 2.0T VW engines have a known issue with the cam chain tensioner. There are tons of class-action suits about it, but I am not aware that anyone has received a plug nickel from it. The ratchet in the tensioner breaks, about 6 inches after you turn 100.000 miles. Usually during or immediately after starting, and usually cold. Engine is totaled.
