Weird JZ idle noise

[nomoremrriceguy]

Lately, when I've started up my car the exhaust blows out a small white puff of smoke and then stops, I think it's signs of a blown head gasket, but other then the smoke on start up it drives great and has no problems, the radiator also started to leak small amounts of coolant every now and then so im not sure what the problem is? I've read a few forum posts that say bad ecu capacitors could also be the culprit, heres a youtube video of the car starting up (note this was the first time its started up in 3 days, the revs were being held at about 3k by the ecu)


Heres the video https://www.youtube.com/watch?v=k-MtOP9yvWw

[nomoremrriceguy]

anyone have any suggestions?

[240msh]

anyone have any suggestions?

That's weird, im not sure.. I see you play cs tho? haha

[baube]

it's pretty common for old jz to puff a little on startup. usually due to valve seals.


as for the sound and the coolant I can't help you on this

[nomoremrriceguy]

That's weird, im not sure.. I see you play cs tho? haha yeah I do haha do you?

[snatchmarks]

it's pretty common for old jz to puff a little on startup. Usually due to valve seals.


As for the sound and the coolant i can't help you on this


With that being said sounds like the motor is running fine and your rad is just leaking? Maybe you're low on coolant..? Not sure what you mean about the ecu..

[240msh]

Yea, quit a while ago but I've been playing a little lately, what rank are you?

[nomoremrriceguy]

Yea, quit a while ago but I've been playing a little lately, what rank are you? nice, hit me up if you wanna play sometime, I'm a global elite

[240msh]

you got skype or something? i was global over a year ago and then went down to lem/smfc couldnt get ge back because i played esea more lmao, then around September i lost interest and only did stuff with the 240 lmao

[nomoremrriceguy]

you got skype or something? i was global over a year ago and then went down to lem/smfc couldnt get ge back because i played esea more lmao, then around September i lost interest and only did stuff with the 240 lmao for sure haha I have Skype but I never use it, I have teamspeak though, my names just Jonathan on steam so you'll never find me, if you look up the group "lunar flare" I'm one of the admins in that group

[KAT-PWR]

Valve stem seals

[240msh]

i added you on steam, my name is "SevN"

[Flicktitty]

the puff could be valve stem seals like other mentioned as it is overly common, but that is more of a blueish smoke and not white.

What exact noise are you concerned about? The high pitched noise sounds like the IACV or the wobbly sounding noise? that sounds rotational, so possibly a bad tensioner. hard to tell. can you pinpoint where the sound is coming from?

[EarlsWorld]

run a compression test on it to rule out head gasket

[nomoremrriceguy]

run a compression test on it to rule out head gasket
Tested compression. 160psi across all cylinders