3.4l gm infamous engine ticking, noise

well i found this out about 1yr and a half ago when my rear one started in, but heres the site i found the info on, and ?'s just ask

http://www.grandamgt.com/forum/archive/index.php/t-18600.html

Category:

Autos & Vehicles

Tags:

• chevy
• 3.4l
• valve
• noise
• ticking
• engine

[aliaslash33]

I got a monte too. Same color actually lol look exactly the same. I got a little Tick when I start mine up but it goes away once it's warm. I believe that's normal for this motor, correct?

[Mikeyssss]

@aliaslash33 yea you are correct sir lol, yea most of the 3.4, and 3.1L have a slight tick noise when cold, nothing serious, how many miles are on yours?

[aliaslash33]

@Mikeyssss i have 149,300 something like that

[Mikeyssss]

@aliaslash33 hmm if youve already had the lower intake gaskets done, or if you dont know, then i wouldnt worry about it at all then you should be fine

[SuperTurboDiesel2]

Interesting... Never heard of your thread issue, but I suppose it's possible. Typically, the problem with these 3.4L's and the 3.1L's is that the intake gaskets go bad and the coolant leaks into the engine oil, which leads to the hydraulic lifters not "pumping up" correctly, and you get some to a LOT of "ticking" noises coming from the engine. Can sound like minor ticking, all the way to sounding like there are gremlins throwing a fuckin' rock throwing party inside your engine when it's running.

[Mikeyssss]

@SuperTurboDiesel2 so after about 2 yrs later 2 more popped in the front so did a lil more research and found out if the rockers arent tightened down to the exact spec later on in time theyll eventually rip out, cuz of the aluminum threads not being strong enough

[Mikeyssss]

@SuperTurboDiesel2 so thats why i hear so many of these engines lightly or mildly ticking, yea the first time it happened, the back middle intake rocker poped out, sounded like shit the exhaust was shooting back into the intake, and i didnt know wth was wrong lol, so i did some research and found someone had this problem so i brought it to my dads buddies shop and when he popped the valve cover off thats when he found out the rocker bolt ripped out

[Mikeyssss]

@camposwilliam62 aww man she runs like new again lol yea i think the kit was like $20, but im not that good at doing the precise type stuff, so i brought it to my dads friend who i bought my bike from, it only took him like less than an hour to do the front ones, but the back took like almost 2 or 2 1/2 cuz of being in a tight spot, but yea the heli coils are like 3 times stronger than the original threads, but ive beat on it for almost 2 yrs, and the back one is still mint

[camposwilliam62]

@Mikeyssss Yup...as I suspected. I did the same search you did and sure enough I have the same problem. Thanks for the tip dude, I'll surely do the same repair. Did your engine come through afterwards? Bet it sounds and hums like normal again.