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07-28-2014
Ok so my 3800 when it first gets started for first time in morning in makes like a ticking/slight knock noise for 10-30 seconds then stops I have heard rod knocks before and it doesn't sound like that.my car runs amazing and isn't throwing any codes it's full on oil and always has been took car of..like I said only knocks for maximum of 30 seconds and doesn't do it for rest of day just first start of day
07-28-2014
Post a video.. Rod knock is easy to tell if you hold the rpms at around 2k do you still hear it.. If not then it's not rod knock
07-28-2014
I'll have to wait for morning to post a video it doesn't do it if I rev it up or hold the throttal
07-28-2014
There's no knocking that I can hear while holding thottal at 2k
07-28-2014
Just seems like a lifter tick to me.
If you are close to needing an oil change, drain a small bit out and put 1 quart of tranny fluid in the oil. Trans fluid has far better cleaners and can help remove deposits inside the motor. Run it for 100-200 miles and change the oil.
It's worth a shot to see if that stops the ticking upon start up.
07-28-2014
its time for a oil change i bet. gm lifters do tick after sitting over night to some cars, gm says its ok as long as it stops in a minute or so.
07-28-2014
07-28-2014
I poseted a video while car is warm idk if video works tho
07-28-2014
Sure it's not an exhaust leak? Video works, although what I was able to hear was almost silent.
07-28-2014
Yea I was just showing that it a silent when warm...would a exhaust leak go away after warm? Or what
07-28-2014
Some go away after it warms up
07-28-2014
Idk what it is I think it's just from the oil not being somewhere after sitting awhile
07-28-2014
It could be that. How many miles on that oil change? If you change it and the noise changes in any way that's probably it. By changing I mean like only lasting 5 seconds, or going away all together.
07-28-2014
I think there's about 3,000 on oil 140,000 on motor
07-28-2014
Don't worry about it then, do the oil change soon and see how it does. In my experience, 3.4's and 3.1's get lifter ticking way more commonly than 3.8's but I have seen it.
07-28-2014
Ok thanks
07-28-2014
Btw what's a good way to clean the engine and engine bay
07-28-2014
Spray a hot and dry engine bay with a medium strength degreaser, wait 5-10 mins, cover the ICM and alternator to keep water out, and wash it off with a garden hose or power washer if you'd like but be careful. Might have to do it a second time and use a brush in certain areas
07-28-2014
Thanks
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