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2004-2007 Cadillac CTS-V Performance Mods Discussion, Lifters....yeah, its that time I think. in Cadillac CTS-V Series Forum - 2004 - 2007; Originally Posted by darkman ... Doing a cam, however, does involve a lot of extra work, tools, and parts. Originally ...
  1. #16
    rand49er's Avatar
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    Re: Lifters....yeah, its that time I think.

    Quote Originally Posted by darkman View Post
    ... Doing a cam, however, does involve a lot of extra work, tools, and parts.
    Quote Originally Posted by nikdsctsv View Post
    Huh? Doing a cam requires a puller for the balancer and that's about it? What else is difficult about that? Removing the cover,oil pump, timing chain, cam? After the balancer is off those things take roughly 20 minutes ...
    Doing valve springs and lifters just involves popping the heads off (after removing the intake man). Doing a cam, too, means you'll have to also take off the front fascia, drain the coolant system, and remove the radiator (wud I forget?) in addition to the "cover, oil pump, timing chain, and cam."

    "20 minutes?" You must be one of those NASCAR mechanics.

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    Re: Lifters....yeah, its that time I think.

    I doubt the lifters are bad. I'd question the oil pump if it has not been maintained. If you're dead set on lifters, at least make sure you replace the oil pump while you're in there.

    Also, if you end up getting lifters, do yourself a favor and get the Morel's from the start. I had to replace mine twice b/c I didn't listen to that advice.

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    Re: Lifters....yeah, its that time I think.

    Im not dead set on anything at this stage, but I doubt its the oil pump...unless these can have oil pump issues while keeping dead on oil pressures across the board.

    I still have to check the injectors and a few other items and see what happens.

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    Re: Lifters....yeah, its that time I think.

    Quote Originally Posted by 2007-V View Post
    Im not dead set on anything at this stage, but I doubt its the oil pump...unless these can have oil pump issues while keeping dead on oil pressures across the board.

    I still have to check the injectors and a few other items and see what happens.
    Are you running the oem engine cover? That cover blocks a lot of noise. If the tick is inaudible with the cover on, but audible with the cover off I would tend to believe it is harmless.

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    Re: Lifters....yeah, its that time I think.

    No, I have the Corvette engine covers.

    With that said I am leaning towards an injector or maybe the dual mass flywheel. Mainly due to the severity changes of this particular tick, and I noticed when I started it yesterday it wasn't there, however when I restarted it a few hours later it was back. I will say it is not the normal valve train noise associated with these...I have that but this tick is a different pitch and level. However does follow the rev range up and down.

    I would think a lifter would be the same all the time or get progressively worse.

    Also I can hear it more from under the drivers door area than with the hood up usually.

    Then again I may just drive it till something gets noticeably worse and make the diagnoses easier.

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    BigDaddy-V is offline Cadillac Owners Fanatic
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    Re: Lifters....yeah, its that time I think.

    Granted I am not the best one on the forum for this as others have had the car longer and dealt with more stuff than me, but if it is coming from there and you can hear it better from under the car on the drivers side it very well could be some very tiny exhaust leak. Espically if it follows the rpm range that you are running. Just a thought. i know there was a similar sound on another forum members car close to me and he had some exhaust work done and I think it got better. Now he is currently running kooks LT's and high flow cats so all you hear is that! hehe. But maybe something to look into.

    BDV

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    Re: Lifters....yeah, its that time I think.

    Yea definitely look at all your exhaust connections. you can also use a mechanic stethoscope to listen to injectors or valvetrain if you think its internal.

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    What octane fuel do you use most of the time?

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    Re: Lifters....yeah, its that time I think.

    Didn't think of exhaust leak.....hmmm.....good thought.

    I'm ordering a stethoscope tomorrow and going to listen to everything next weekend, assuming no snow in Texas...lol

    I run 93 always. I can't speak for who owned before me but based on everything else I would bet they went cheap.

    Side note: the tick noise under the hood wasn't there today either...from cold start to about 180 oil temp and nothing. Very odd but we will see I guess.

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    Blown_Red_97z is offline Cadillac Owners Member
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    A few years ago I test drove an 06 gto ls2 that I was looking to buy. It was a rich arminian kid who owned it and beat the shit out of it. I gunned it with only 20k miles on the clock and it started ticking. I thought it was odd and random, so on the way back to his house I gunned it again (I was looking at buying the car). Ticking got extremely loud and i told him we had to take it back. Turned out a valve spring broke. At only 20k. Therefore he beat the shit out of the car and it didn't last. I passed on the car and glad I did

    Just saying poor maintenance and a crappy owner means the car won't last

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    Re: Lifters....yeah, its that time I think.

    Quote Originally Posted by Becker View Post
    ... your exhaust connections ...
    Quote Originally Posted by 2007-V View Post
    ... exhaust leak ...
    Do you have headers? I don't recall hearing of an exhaust leak with the stock setup, but I had one with my LTs and it sounds exactly like you're describing. Put new gaskets on, and it's now quiet. So-o much better than cracking the motor open.

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    Re: Lifters....yeah, its that time I think.

    What oil pressure do you have cold idle and hot idle?

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    Re: Lifters....yeah, its that time I think.

    Stock exhaust...well muffler delete the previous owner did but stock otherwise.

    This morning w/ 25 degree oil it was around 48 then down to 44 after a minute or two. Hot idle is always at 32-34 psi.

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    Re: Lifters....yeah, its that time I think.

    The exhaust leak was just a thought. Not sure if that would be it but something to look into. Valve spring could be it too but since you hear it more from under the car I would think exhaust.

    BDV

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    Re: Lifters....yeah, its that time I think.

    Quote Originally Posted by 2007-V View Post
    ... This morning w/ 25 degree oil it was around 48 then down to 44 after a minute or two. Hot idle is always at 32-34 psi.
    Nothing wrong with that.

    I'd do the easiest thing at this point, and that would be to pop the valve covers off and see if everything looks okie dokie. It might be possible to isolate the location of the noise at this point ... or not.

    If you don't see a problem (e.g. broken spring), you might have to take the next step and check out the valves/lifters/etc close up and personal.
    BigDaddy-V likes this.

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