Timing Chain Tensioner
Thread Starter
Joined: 11-02-2018
Posts: 4
From: Philadelphia Pa.
Timing Chain Tensioner
Hi Everybody
I have a 2011 HHR with the 2.2 motor and I think I have to replace the chain tensioner. If I use the vehicle everyday, I hear no noise when starting the car. If the car sits for a couple days, I hear a noise coming from the engine that lasts for 2 to 3 seconds. I've been reading up on which one to purchase and how to install. My question is, do you really have to remove the valve cover to extend the plunge. Some say the plunger extends when you start the car. Some say you have to extend plunger before starting the car. Which one is true? Does anyone know how the replacement is explained in the GM Service Manual? I have no GM Manual for the car.
Thanks for any help
Dano
I have a 2011 HHR with the 2.2 motor and I think I have to replace the chain tensioner. If I use the vehicle everyday, I hear no noise when starting the car. If the car sits for a couple days, I hear a noise coming from the engine that lasts for 2 to 3 seconds. I've been reading up on which one to purchase and how to install. My question is, do you really have to remove the valve cover to extend the plunge. Some say the plunger extends when you start the car. Some say you have to extend plunger before starting the car. Which one is true? Does anyone know how the replacement is explained in the GM Service Manual? I have no GM Manual for the car.
Thanks for any help
Dano
Administrator
Joined: 10-13-2011
Posts: 40,082
From: Welland,Ont Canada
Welcome to the site, I’ve replaced the tensioner then removed the valve cover to make sure the plunger extended, for me, it did.
Then I figured out it was the front timing chain guide was broken, so I suggest, be safe replace the chains , tensioners and guides.
I prefer the Cloyes brand
Then I figured out it was the front timing chain guide was broken, so I suggest, be safe replace the chains , tensioners and guides.
I prefer the Cloyes brand
Senior Member
Joined: 07-17-2006
Posts: 6,053
From: Dallas, GA
If you purchased the same one I did for my 06 2.2, it's automatic and will set itself.
Just got the same one in for my daughters 06 Cobalt, will install it soon. Price on those has dropped over the years.
Just got the same one in for my daughters 06 Cobalt, will install it soon. Price on those has dropped over the years.
New Member
Joined: 03-09-2019
Posts: 29
From: Florida
I just went through the same exercise with my 2009 2.2L VVT HHR. I got the same noise for the first few seconds and replaced the original tensioner, which was of the new design. Since I only have 51,000 miles, I wrongly figured that there is no way that the timing chain/guides could be worn this soon. I pulled the valve cover, replaced the tensioner, hit it to set the tension, which did not appear to be loose after tensioning. Replaced all of the gaskets and seals and buttoned things up. It did absolutely nothing for the rattling noise at cold start up. I guess that running Mobile 1 since new is not the answer for a long life with the 2.2L engine. 
Senior Member
Joined: 10-17-2018
Posts: 109
From: FL
other things to consider doing at the same time
oil change
coolant flush
some have mentioned in other threads that it isnt a bad idea to replace the balance chain at the same time, considering your right there already.
New Member
Joined: 03-09-2019
Posts: 29
From: Florida
Unfortunately I was just focused on changing out the tensioner and didn't look for other issues. Is a broken front guide a common occurrence? I did notice that the chain was tight after I tapped the new tensioner.