I have a 2003 Toyota Corolla with a leaking timing chain tensioner. I was able to locate a procedure for replacing the tensioner but it didn't say whether the no. 1 cylinder had to be @ TDC or not. What is the proper procedure for this repair?
View 1 RepliesCan you change the tensioners and guides without removing the chains or getting the cam lock tools ? Doing a in truck repair to fix a squeal sorta noise at start up without the belt on coming from passenger side valve cover that lasts for about 5 sec. oh fyi CRC new freeze off works wonders compared to jb blaster for my tear down so far!
View 6 RepliesChanging timing chain tensioner? Mine is making the rattling noise on startup. Tried searching one internet for any DIY's out there. Haven't really found any good ones.
View 7 RepliesWhat to do if your timing chain tensioner fails and wipes out the valvetrain. Go to www.vwusa.com and click the contact us page. Find the link for "online chat" and open a dialog with a vw rep. Have the vin, milage, purchase date info handy and tell them what happend.
Maybe I just got lucky, but I thought my (second owner) 2012 GTI with 46000 mi was toast, the rep (Bill H) told me not to worry and set me up with a case number and the location of a dearship that will confirm the damage and replace my engine.
My experience is in direct opposition of what I have read on forums when people take their GTI's to the dealership first, then after hagling with the stealership managers for weeks on end finally end up emailing vw corporate (which takes weeks to respond) and finally having the issue resolved.
Of couse, this is only if your car has not had the warranty run out. I thought that being the second owner voided the powertrain warranty...again that was false.
Got an oil change yesterday and the dealer noticed a small oil leak from the timing cover on my '10 Corolla w/ 71k. Of course they could reseal it for $450. After further investigation, it looks like it is actually coming from the timing chain tensioner. I have seen on the 9th gen this is a common issue, but I haven't really seen anything on the 10th gen. Sometimes, I have noticed a short squeal or squall at cold startup, but it hasn't been enough to really diagnose. It could be some oil on the belt or something else related to this issue. Hopefully the pictures show up.... [URL] ......
View 2 Replies2010 corolla bought new 3/29/010 has 43k dealer said timing chain tensioner was slipping and might leak oil wanted $175 to replace shouldn't this be covered under the power train warranty?
View 10 RepliesOn Feb 2015 I had this oil leak developing around the timing chain cover/ oil pressure plug and so i replaced the oil pressure sensor and clean the area and though problem solved...
Fast forward today and the weeping has redeveloped and has gotten larger than last time , its only a weeping issue no visible oil droplet leaks, anyways I took a mirror and when probing around and found the leak origin from the rusty looking timing chain tensioner...that what i think it is.
My question is should I just remove and replace the Rubber O-ring on it or should I just replace the entire timing tensioner unit with a new one, my original timing chain tensioner is sitting at 85k miles. The O-ring is free (i have a kit) and i can do it right now or a New Timing chain tensioner w/ new O-ring is around $20 bucks but i cannot verify the part number ...
I have an '09 Tiguan that recently began to start hard. Two days ago, it refused to start and hasn't started since. It cranks and cranks but to no avail. I disconnected the fuel line at the first hard piece on the front side of the head. The primer pump when activated pours gas out of the line for about 5-8 seconds.
I also pulled the coil packs off and verified there is spark on them. I scanned the car with vcds and came up with nothing other than a couple voltage codes (battery is low at this point from cranking and is bulged and showing yellow in the spot window).
Tonight I borrowed the perfectly fine battery from my B6 and attempted to start it. No codes whatsoever and yet it still refused to run.
I hear it's a problem on the Mk VI. Is there anything you can do or upgrade to eliminate the problem ... especially considering that it goes out of warranty after 5 years.
View 12 RepliesI have been reading about all these horrific cases about the tensioner just giving and causing catastrophic failure. Without all the maintenance records VWoA is reluctant to support 100% even if you're still within the powertrain warranty. I understand these 20+ cases are a small population out of the entire group, but I don't want to risk being another statistical point for this topic. Just ordered the HS Tuning kit and the two snap on tools.
View 7 RepliesYesterday i went to mechanic and changed Timing chain tensioners, with chains and all guides. But still have 2 second voice on startup, once oil pressure lights off everything fine. I paid heavy price on parts and labour but very disappointed after hear same noise again today morning which i was listening from one year purchase of this car... Sonata 3.3l v6 ....
View 4 RepliesMy son's 2007 Hyundai Sonata had an engine noise that was eventually diagnosed as bad timing chain tensioners. However, one Hyundai dealer repeatedly denied the problem, so it was 8 months before another Hyundai dealer admitted it and changed the tensioners. A couple of months later, the engine light and oil light were on and he was told he needed a new oil pump. By this time, the warranty had expired and he had to pay for the new oil pump and eventually a new engine. My question is this: Could the failure of the oil pump have had anything to do with the timing chain tensioner problem?
View 19 RepliesMy 2007 3.3l SF timing chain cover is leaking.It has 93,000Kms and is still covered by warranty.The Dealer said it was a 17hr break down job to do.
I am wondering if there are things I should get done/replaced when they open the engine up. I had asked at the dealer if there were other parts that should be replaced at this time, but was told that there was not.
I have a new style 2004 F150 XLT supercrew with a 4.6. Well, I just hit 300,00 miles earlier this week. The truck has performed pretty much flawlessly over the years (and still does). I've replaced front hubs, IWE's, brakes, fluids, etc, but have NEVER opened up the engine. Is it time to replace the timing chain?
First thought is ,yes, like 50,000 miles ago, but... It has some dents and dings and the rust is getting to it. There is 300,000 on the transmission also... Virtually no residual value- If it strands me on the road, it's time for a new truck.
On the other hand, it only burns a little over a quart at 3000 mile change intervals, the transmission seems strong. I just shampooed the cloth interior and detailed it. The thing looks great from the vantage point of the steering wheel.
No engine issues at all- no rattling, etc.
I have a 2011 Limited and I wanted to mention that I brought it in for the ECM service campaign and to have an oil leak looked at. The reflashing went as expected, I am still trying to decide if the car behaves any different. It seems like the engine RPM drops a little bit when slowing down then bounces back up. Nowhere near enough to stall or anything.
While I had it in the shop, I had them look at an oil leak that I have been having. According to the dealer, it is leaking from the timing chain cover. They have ordered some parts and I will be taking it in for the fix next week. I don't have a full list of which parts they will be replacing, but he did mention removing the valve covers and installing a new oil pressure switch while they were in there.
My 2010 Santa Fe is leaking oil. I bought it in April & it has under 8,000 miles. After parking the car, I see oil spots that range in size from a Silver Dollar to a CD after a few hours.
First, the dealer said it was a cracked oil filter cap, so they replaced that...I brought it home and it was still leaking.
Brought it back to the dealer, and now they are saying the Timing Chain Cover Seal is leaking.
My daughter just bought a 2002 Santa Fe LX which is drooling oil all over the alternator and everything else in that area. I found what (I think) is the source (but you have to be a contortionist to see it.) I haven't been able to find any good parts identification photos of that area, but I think that this is the bottom corner of the lower timing belt cover.
I guess the repair will require going through the first several steps used when replacing a timing belt. I don't plan on going any further than needed to fix this leak, though, since the timing belt was reportedly changed about 25K miles ago.
Before I start taking all this apart, I have a couple questions:
1. What might be holding this corner out, away from the block?
2. Is the timing belt cover supposed to snap into place over a lip on the block? Or, should it be sealed with gasket sealer -- or something similar?
I recently bought a 98 CE with about 80k miles for my commuter car. Overall I am very please with it but today I started hearing a metallic type chattering sound from the left side of the engine (looking from the front). Sounds to me like the timing chain is slightly loose and maybe the cause of the sound but when I search all the auto pats websites it doesn't show a timing chain tensioner. So do I have a belt or a chain? What the sound is? it doesn't do it continuously but it does seem to only start when the engine is warmed up and at idle. I did a compression test and all the cylinders are in the ballpark so Im hoping that's means my valves aren't taping.I cant imagine it would have lasted this long if the valves were taping (driven it about 500 miles so far).
View 14 RepliesI was changing my mom's oil at work today. I noticed her timing chain cover is leaking. Is this just an isolated occurrence? It seems to be right where the FIPG mates the timing cover to the cylinder head. It also seems right below the tensioner. However the tensioner is bone dry.
View 9 Replies2001 Jetta GLX, 12v 2.8 VR6 Automatic, 157k miles.
Relevant Info: P0411 code, unknown if associated with my slightly rough idle and recently reduced mileage (down by 3-4 MPG). I see 2 N80 valves, one by the power steering reservoir and one behind the throttle body attached to the fire wall. I removed them both, got a tiny bit of what may have been charcoal out of the lower valve and tested both with a 9 volt battery. Both were closed with no power and open when I attached the battery. I cleared the code and it returns within 30 minutes.
Possibly irrelevant info:
Changed the timing chains 3 weeks ago and the code popped up just afterward. Prior to changing the chains, all I saw was a Cam Position Sensor code that is now clear. The slightly rough idle was present to a greater degree before chains were changed but has improved.
SAI solenoids look good but their little rubber hoses don't look fantastic. Could this contribute to the rough idle or is it not part of the vacuum system?
Ignition coil is new and all plug wires tested to about 6k ohms.
I've looked up other's experience with P0411's and have seen the list of possible causes. Wondering if I'm missing a possible cause, if I can test the system further without having to buy parts etc, if the reduced mpg's and rough idle are related...
I'm told by my dealer that I must replace the timing chain by 100,000 miles. I've also been told by others who've driven multiple vehicles over 250K miles that they've never replaced a timing chain on any of their vehicles. Who's right in this case?
View 9 Replies