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Well guys, this weekend I am replacing the Upper Tensioners on BOTH sides and the Upper Chains. I orders the Upper Kit from Christophers Import and for $250 I got the 2 chains, 2 tensioners and cover gaskets. The chains are the Master Link chains so I will take off the Exhaust Cams on both...

Just a little update. I replaced the tensioner on the left side, only to find out that the chain is stretched. Or so I hope? So i have the kit ordered from Christopher Imports and I will let you know how it goes.

Thanks Oddball, I know its a very dangerous job and making sure the timing doesn't move makes me nervous but I do have everything in line so I will let you know want happens.

I totally agree with you all, just can't afford the time to do it all at once and hoping to get 2 months out of it and THEN do the whole job. Right now just going to replace the one tensioner and then go back. I am in the process of taking the exhaust cam off and pulling the tensioner out that...

Ha, thanks guys! I will be doing the job this week. It is still amazing to me that it was designed like this.I will let you all know how it goes. Gee, I am sooo excited!

Hey guys, I put a post up last week in regards to Rough idle and check engine light. Well after taking off the Valve covers I have a tensioner broken on the Right side, 2nd chain. Chains are still good and it didn't jump so I am still in time, phew. Question is someone posted a message...

Thanks for the advice. Something else I just read, Harmonic Balancer? I had an 80 transam and that did go out on the TA, Possible chance the seal could go on an LS? Note, I am GRASPING here:)

Thats a good question, I don't know. The MAF sensor... wouldn't that show up in the Diagnostic reading from the dealership? I am going to pull the Drivers side Valve Cover off today and check out the Timing chain and Tensioners and see how those look. Of course that has the be the...

Help! Ok guys, Per the dealership and the sound I am getting they said all the coils were miss firing on the right side, but after further testing they said the coils were good, so looking at the different threads and the dealership wanting to pull off the passanger Valve cover to inspect I took...

Thanks Joegr, How much of a pain is it to do? Can I do it by just removing the valve covers?

Great, I just drove it home from the dealership, NOW with the check engine light on. Put my code reader on it and got PO175 and PO171. Still chains?

Hey guys! Ok, So I broke down and took my car into the dealership for them to run Diagnostic Test. I got the call and the Mechanic said that all it shows is that all 4 coils on the Right side are miss Firing. (Odd as I just changed those 2 months ago) So he said he was confused and needed to...

Well I changed coils, no leaking oil, coils and plugs are good. but still rough and even a small knock. Some white smoke, and smell, but no water in oil. Can O2 Sensors actually do this?

No worries Joegr, let me ask you this then since I am so full of questions. Ok, I took the coil covers off, took out the coils and made sure I didn't have any oil pooling. Everything looks good. I had 2 coils that were still good when I changed them 6 months ago (I know I should have changed...

Thanks guys, I meant chains, as I looked last time I have the value covers off, I thought to mysef, crap, hope that never goes, BIG JOB! Good, if I can rule the chains out I feel alittle better. I will try to get my hands on a scanner and see if it pulls something?? the funny thing is...

wow, thanks, so am I correct to assume that there are 4 O 2 Sensors for that?

Autozone is way to far away. The coils I got were from Carquest. and they matched a price, so they ran me $41.00 per coil. The Gasket set was a SET, both sides with oil seal o rings and grommet rings. That i think ran me $90. It was running great, a dn last night my cig light blew a fuse...

I would normally agree on the coil/plugs but I changed those out in the last 6 months with new seals and Valve cover gaskets. I will have to tear it apart and make sure there is no oil leaking. Other than that, why all of a sudden would this happen.

The tough part is I don't want to take the chance on driving it, since its soooo rough. Looks like i will have to play it safe and tow it to the dealership:(

Well it just gets better, I have a 2000 LS, 3.9 and last night i left work and car was running great, stopped at the store and when I started it back up it ran REALLY ROUGH. I was 5 min from home and got it here. This morning I tried starting it up and same thing, except the Check engine...