2011 3.8 Genesis Timing Chain Rattle

[smitty1258]

I have a 2011 3.8l Genesis 102,000+ miles that has been rattling and clicking for awhile now at startup first thing in the morning.
I took it to the local dealership to check it out and they confirmed it was the timing chain tensioners and quoted me $3599.99 to replace timing chains, CVVt's, timing chain tensioners, oil pump and camshafts

This seems a little excessive to me so Im here checking with you guys.

The service writer tried to explain that he needed to replace all those other things because even if they replace the tensioners it may still make the noise, and may cause some new issue with the camshaft?

Can anyone confirm this is accurate?

 

[homeofstone]

at 102,000 miles I suggest getting a reputable indie shop to do the work and a much lower price.

 

[Bill K]

It's a shame it didn't start doing it 3000 miles ago.

 

[smitty1258]

Can anyone confirm that they also need to do CVVt's, oil pump and camshafts? Is this something that is common when replacing the tensioners?

I ask because if I can get the repair done for under $750-1000 then it will be worth it to keep the car. Considering the car trade value is around 10k a $3500 repair wouldn't make sense. Otherwise Ill just trade it in on a new Genesis or something.

 

[balfor]

I would question the other parts, for example I'm sure the oil pump is worn after 100k miles but it should last at least 150-200k plus. Are they saying to replace it since they are in there anyway? A proper diagnosis would require a feeler gauge measurement of the oil pump rotors to determine if they are worn past spec. Sounds like are just throwing parts at it.

I would definitely get another opinion. How bad is the rattle anyway? Did it just start? If not you might be able to claim it was still under the 100k warranty when it started. If the rattle is only at initial startup I would keep running it.

 

[smitty1258]

I would question the other parts, for example I'm sure the oil pump is worn after 100k miles but it should last at least 150-200k plus. Are they saying to replace it since they are in there anyway? A proper diagnosis would require a feeler gauge measurement of the oil pump rotors to determine if they are worn past spec. Sounds like are just throwing parts at it.

I would definitely get another opinion. How bad is the rattle anyway? Did it just start? If not you might be able to claim it was still under the 100k warranty when it started. If the rattle is only at initial startup I would keep running it.

It has been going on since about 95,xxx miles. Unfortunately I bought it used with around 55K on it not certified. I think will take it to another Hyundai Dealer to get it checked as well. The rattle is only at initial startup in the morning for less than 2-5 seconds and sometimes(rarely) it doesn't do it at all. Also occasionally if the car sits for 10-12 hours it will do it a second time in a day but that seems to be uncommon.

 

[Rey]

Timing chain rattle is due to loose/bad timing chain tensioner(s). If the sound "goes away" after warm up, then I think it is safe to assume that the problem is limited to a tensioner. I once had this problem with a motorcycle (Honda), lived with it for a year or so. Installed new tensioner and no further worries.
Sometimes, but not in your case, a loose timing chain can slip a notch or two on the camshaft or even oil pump (if oil pump is so driven), in which case there will be a noticeable reduction in performance and all kinds of other mischief.
Suggest you take the car to an independent mechanic who is willing to do this job. It is not particularly difficult, but it does take some time to remove all the covers, etc. to access the cam tensioners.

 

[BrandonP]

It is the CVVT. The dealer will have to open up the engine to see how many will need replaced. It is not cheap either. Around $3500.
My car had a extra growl in the morning too at start up and then started doing it all the time. The cvvts(2) and manifolds had to be replaced. Also have had replaced transmission, blower motor, electronic parking brake, cvvt along with timing chain, control arms, bushings rear and front, power steering pump, 2 parking sensors, rear caliper, main shaft for now second transmisson and a few other things. Definitely get a warranty. Mine expired a month ago now and it is currently in the shop for a broken pulley the keeps the serpentine belt spinning. The pulley housing broke. The pulley housing is the timing chain cover. Not sure how much it will cost yet but it requires 9 hours of labor plus $450 in parts. Oh, and the driver window motor went out and needs replaced. Dealer quoted for window$550 LOL
Get a warranty or don’t buy a Genesis. Will be tradeing in soon.

 

[G-390230]

I have a 2011 3.8l Genesis 102,000+ miles that has been rattling and clicking for awhile now at startup first thing in the morning.
I took it to the local dealership to check it out and they confirmed it was the timing chain tensioners and quoted me $3599.99 to replace timing chains, CVVt's, timing chain tensioners, oil pump and camshafts

This seems a little excessive to me so Im here checking with you guys.

The service writer tried to explain that he needed to replace all those other things because even if they replace the tensioners it may still make the noise, and may cause some new issue with the camshaft?

Can anyone confirm this is accurate?

I am in the almost exact moment with my 2011. The rattle continues. As best I can tell is your quote is excessive along with the number of replacements.

 

[G-671820]

I have a 2016 that started rattling at 38,000 miles and after an oil change at the dealer. Can the wrong type or weight of oil cause the rattle?

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[Cali Gen]

I have a 2016 that started rattling at 38,000 miles and after an oil change at the dealer. Can the wrong type or weight of oil cause the rattle?

Someone correct me if im wrong but i believe There is a potential due to weather conditions or weight of oil being to light or thin it is having a harder time building oil pressure(for the timing chain tensioners).

 

[OlderGuy1stGenesis]

It has been going on since about 95,xxx miles. Unfortunately I bought it used with around 55K on it not certified. I think will take it to another Hyundai Dealer to get it checked as well. The rattle is only at initial startup in the morning for less than 2-5 seconds and sometimes(rarely) it doesn't do it at all. Also occasionally if the car sits for 10-12 hours it will do it a second time in a day but that seems to be uncommon.

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I have seen Toyotas with simple cold start up piston slap do the same thing.

In winter, usually you use the lightest oil recommended. For worn engines, you might want to use the next grade up. High mileage oils are always recommended over 50,000 miles. I would only rebuild an engine if I knew the re builder was a master re builder. Even then you need to replace nearly ALL the parts. It is generally cheaper to replace the engine on a car you REALLY LOVE with something like a Jasper (PA) rebuilt engine or a factory guaranteed engine, One other option: the Japanese for years have unloaded used engines that didn't quite meet emissions specs on the North American market. I am sure the Koreans have something similar. They can be good buys, used.

 

[G-402742]

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I have seen Toyotas with simple cold start up piston slap do the same thing.

In winter, usually you use the lightest oil recommended. For worn engines, you might want to use the next grade up. High mileage oils are always recommended over 50,000 miles. I would only rebuild an engine if I knew the re builder was a master re builder. Even then you need to replace nearly ALL the parts. It is generally cheaper to replace the engine on a car you REALLY LOVE with something like a Jasper (PA) rebuilt engine or a factory guaranteed engine, One other option: the Japanese for years have unloaded used engines that didn't quite meet emissions specs on the North American market. I am sure the Koreans have something similar. They can be good buys, used.

I have the exact problem on my 2011 3.8 genesis. Dealer will not warranty. says that it has to rattle for 30+ seconds

 

[OlderGuy1stGenesis]

It has been going on since about 95,xxx miles. Unfortunately I bought it used with around 55K on it not certified. I think will take it to another Hyundai Dealer to get it checked as well. The rattle is only at initial startup in the morning for less than 2-5 seconds and sometimes(rarely) it doesn't do it at all. Also occasionally if the car sits for 10-12 hours it will do it a second time in a day but that seems to be uncommon.

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I own a 1996 Toyata Tacoma pickup with the older 3.4 double overhead camshaft engine. The engine has been bullet proof, but at 226,000 miles I began noticing a two second rattle at startup and so I talked to the lead autoshop instructor at my local technical college asking him about it.

He suggested that it is simple piston slap (common in cars) at start up and the clue for both of us was that it was momentary on start up only, when cold. Older engines will develop a bit of it and most of us will live with it to avoid much more expensive repairs. Use the right oil and change oil and filter like you should.

In my opinion there are a handful of cars so nice and well built that replacing en engine with a brand new or used or re manufactured guaranteed engine is worth it.

I started out in the 70's as an automechanic. A lot has changed. Some lessons I learned on my 1999, 2000 Camrys: Those fiberglass (non steel) timing belt changes became expensive. I went through 4 belt changes over a period of a decade. $$$$ On that car the belt turns a water pump, an oil pump, and is tensioned by at least one pulley tensioner.

Having free clearance valves, if the belt breaks, the engine stops immediately without self destructing. So when you work on it, why would you NOT replace the water pump at the same time ? At high mileage the Camry oil pump develops a groove in the shaft which then takes out the seal and now you are throwing oil on maybe a brand new timing belt. The oil pump, new or aftermarket, was $17.00 - $35.00. At high mileage, why would you NOT replace it and maintain full oil pressure ? An old idler pulley may literally break and come apart. Imagine the aftermath. If you are going into the timing belt, why would you NOT replace the idler pulley's ? Penny wise and Pound foolish ?

To go into this engine is NOT for amateurs.

 

[carguy75]

I have a 2011 3.8l Genesis 102,000+ miles that has been rattling and clicking for awhile now at startup first thing in the morning.
I took it to the local dealership to check it out and they confirmed it was the timing chain tensioners and quoted me $3599.99 to replace timing chains, CVVt's, timing chain tensioners, oil pump and camshafts

This seems a little excessive to me so Im here checking with you guys.

The service writer tried to explain that he needed to replace all those other things because even if they replace the tensioners it may still make the noise, and may cause some new issue with the camshaft?

Can anyone confirm this is accurate?

Sounds about right. If the timing chain tensioners needs replacing then it would be best to do the oil pump and other timing components as well due to the amount of work involved to remove them. Same process for them all so best to do it all in one go.

It is really necessary to do it all when just the tensioners are bad? Not really, but it make sense to.

 

[G-848379]

It's a shame it didn't start doing it 3000 miles ago.

Mine is making a strange type of rattling noise at idle but not at all with any throttle at 58,000 would they cover it?