rattling sound at cold start

[mitmit]

i have just changed new engine oil, head gasket, oil filter, head gasket, valve seal, cleaned up cylinder head, rod, valve train etc .

now i am hving little problem which is rattling sound at cold start especially at night or morning when its very cold temperature but disappear after few seconds

so is this normal??

[holdenvtman1123]

what engine oil are you using?

[mitmit]

vxl branded oil with 20 50 grade

[WogBoyz]

vxl branded oil with 20 50 grade

hey mate

that oil mite be a bit too thick and the ratteling sound is cus the oil hasnt reached that area yet when u start it up cold, once oil reaches there then the sound goes away

it maybe something else but thats just my thoughs man

good luck

[mitmit]

thanks, I usually use shell branded oil with 10w30 grade and got this engine oil (gulf western oil 20 50 ) recommended by person at the shop because it was cheap.
anyway so which oil grade are best for this engine, i might replace the oil tomorrow see how it goes

[danja]

Would help to know what engine it is, and how many kms?

[WogBoyz]

im guessing an ecotec, i use mobile 1 5w50 and its great stuff i checked under my oil cap and inside is 100% clean its really good oil comes at a price of 50 - 60 bucks tho

[holdenvtman1123]

i use gtx 3 in the winter and gtx 2 in the summer. gtx 3 is 15w 40. about 25 bucks. my car has done 450k and i service every 5k religiously.

[mitmit]

thx guys,, i would try gtx3.
Mobil 1 maybe too dear for me at the moment because i have already spent more than $500 to the car since last week


its ecotec 3.8 v6 engine and has done 280k's

[WogBoyz]

thx guys,, i would try gtx3.
Mobil 1 maybe too dear for me at the moment because i have already spent more than $500 to the car since last week


its ecotec 3.8 v6 engine and has done 280k's

ahh kk try the gtx3 if the mobile is a bit too expensive

also when u change the oil use and oil flush to clean all the old oil and crap out of it, then put ya new oil in and see how it goes

[mitmit]

got myself mobil1 15w 40 grade

however engine still rattling at cold start

[WogBoyz]

got myself mobil1 15w 40 grade

however engine still rattling at cold start

does it just do it once she fires then goes away or continue to do it?

what about when its warm does it stil do it then?

also have u noticed any decrease in power or anything like that?

[ScoHar]

thanks, I usually use shell branded oil with 10w30 grade and got this engine oil (gulf western oil 20 50 ) recommended by person at the shop because it was cheap.
anyway so which oil grade are best for this engine, i might replace the oil tomorrow see how it goes

A mate of mine gets it off a guy who brings it in cheap.....RUBBISH

sorry just seemed like the right place to put it.

[mitmit]

does it just do it once she fires then goes away or continue to do it?

what about when its warm does it stil do it then?

also have u noticed any decrease in power or anything like that?

check my video thanks if you can notice the slight tapping coming from the engine
note: the engine wasnt really cold at the time i made this video so i would post another one tomorrow when the engine is really cold
i dont feel any decrease in power and it seems running fine and smooth as i drive it to the highway everyday

YouTube - commodore engine tapping noise

A mate of mine gets it off a guy who brings it in cheap.....RUBBISH

sorry just seemed like the right place to put it.

hehe i agree with you

[WogBoyz]

check my video thanks if you can notice the slight tapping coming from the engine
note: the engine wasnt really cold at the time i made this video so i would post another one tomorrow when the engine is really cold
i dont feel any decrease in power and it seems running fine and smooth as i drive it to the highway everyday

YouTube - commodore engine tapping noise




hehe i agree with you

woa man that didnt sound too good lol

maybe you got a sticky lifter? or maybe a broken one?

i used the lifter free stuff from nulon and it fixed my lifter tick

but in ur case id get advice off the pro's on here first mate

[scbh81]

woa man that didnt sound too good lol

maybe you got a sticky lifter? or maybe a broken one?

i used the lifter free stuff from nulon and it fixed my lifter tick

but in ur case id get advice off the pro's on here first mate

I agree i think its sounds like a lifter.....take it to a pro and get it checked... good luck!

[mitmit]

thanks guys, well it was sounded worse and louder when the engine oil mixed with water
so if you think this is lifter noise
do i have to replace the whole valve train such as push rod, valve or just a lifter ?
also what really pissed me off is that i spent 38 bucks for coolant, now i have to waste it coz i m going to remove the lifter and replace if thats the case

[holdenvtman1123]

oil mixed with the water?

[mitmit]

anyway i went to holden part department the other day that they recommended me a whole set new valve lifters but they also said it still be alright and considered normal if the rattle goes away after engine is warm unless the rattle doesnt stop then it has to be replace

oil mixed with the water?

i have just replace whole set of gasket to it so i have already fixed that problem

[WogBoyz]

if it goes away once its warmed up or after a 30seconds or so i wouldnt worry about it, but if it continues like holden said then i would replace them

[fitz_vt]

had the same problem, run Nulon Lifter Free Through for 2 weeks then dump the oil and renew the oil. with some good quality stuff like mobil 1 or Castrol GTX III
if it happens again i would look at new lifters.

[mitmit]

i went to the auto part thinking to replace the lifter today then again this guys recommended me not to because its waste of money and it sounds normal for high k's holden engine so instead they gave me another engine oil 10w30 to try well the noise slightly gone but i still feeling paranoid that the rattle still there lol

seriously this issue hasn't really effected my car performance but it does effecting my tolerance level

[TrikkBen]

it sounds like a sticky lifter try a lifter free...

[danja]

i went to the auto part thinking to replace the lifter today then again this guys recommended me not to because its waste of money and it sounds normal for high k's holden engine so instead they gave me another engine oil 10w30 to try well the noise slightly gone but i still feeling paranoid that the rattle still there lol

seriously this issue hasn't really effected my car performance but it does effecting my tolerance level

To be honest, that does sound like an average high kms Ecotec, I wouldn't be too worried about it randomly exploding or anything.

The lifter treatment some of the guys have suggested might solve your problem, it's cheap and easy to try at any rate.

If it were me I'd be running a 20w50 in an engine with 280,000kms on it. 10w30 is quite thin, and would have been Ok when the engine was new, but by now it'd probably benefit from a thicker oil. I've found the Shell high-milage stuff to be good in those motors, but any of the big name brands should be alright. It's not something you'd need to run off and do, but when the next oil change comes around it's what I'd recommend. I would also say that if you are doing regular changes at 5,000kms, that you needn't worry about using synthetic oil (there's no harm if you do, but you won't gain much from it).

[JacksonVX2]

Yeah i know exactly what noise ýou are talkin about. My VS did it and my VX does it. I can vouche for it being ****ing annoying too. Do you notice its worse when you start it up when the engines already at operating temp. It clicks and rattles rapidly, then fades to a single click which you can hear it echo if óff walls (e.g in a drive thru). I tried an engine flush, tried lifter treatment, changed oils and it still does it. I even pulled the old lifters out and put new ones in ($200 from CamTech) and it has'nt fixed the prob. I still can't figure it out!