Coolant change

CERBERUSlucid · 01-14-2011, 04:39 PM

Well Im swapping out all my hoses currently and was wondering if anyone has done a coolant change since I will need to drain the system? and if you have could you offer any advise regarding it?
as well as anything I should be aware of… basically anything that will help me out during the process. I'm not toooo comfortable with doing this, but I have swapped out the hoses on my G35 before so Im not new to it, but I must admit it was a little nerve wrecking doing it for the first time! but I did succeed with no issues. I've researched all the issues others have had after doing the coolant change such as temp. fluxuation and air pockets etc on the G but was wondering if anyone has a DIY or experience with the Z

Thank you in advance for any shared knowledge or input

CERBERUSlucid · 01-15-2011, 02:51 PM

45 Views and no response?! So im guessing no one has done it yet...

CERBERUSlucid · 01-17-2011, 04:58 PM

Anyone?! anyone at all...

SPOHN · 01-17-2011, 07:09 PM

When I swapped my hoses on my 350 I just drained the radiator, pulled the hoses off. Put new ones on. Refilled radiator and then let the car run with the cap off and fill as it warms a cycles threw. Never had any air in the system. I also believe there's a air bleeder valve at the heater hose near the firewall if you want to open it up till fluid poors out then close up. Just keep checking until you feel it's good. You also might want to park on a slight hill if you open the bleeder valve.

CERBERUSlucid · 01-17-2011, 07:12 PM

KOOL THANK YOU! Thats what I figured...I've done it on a G35 before, but was wondering if anything was different regarding the process...is that air bleeder cap the green one near the back of the firewall?

SPOHN · 01-17-2011, 07:28 PM

Can't remember. Haven't looked on the 370. Make sure it's not the valve on the air conditioning, LOL.

1slow370 · 01-18-2011, 06:22 AM

alright took a gander through the manual and it mentions nothing of a valve by the firewall on a 370. if it's green cap with a sort of air valve in it don't touch it for the love of betsy or you'll need to recharge your ac. basically it's fill the reservoir, take the air plug out of the drivers side tank of the radiator towards the engine, slowly(less than 2l per minute according to the manual) add coolant to the radiator fill neck until it comes out the hole in the tank, reinstall the screw, refill the radiator, install the cap and warm the car up till the thermostat opens and the lower hose gets hot (stop if the engine begins overheating. let the car cool then add coolant where necessary, and run the car again(then keep doing this 2-3 more times until the level no longer goes down). -Factory manual abridged

SPOHN · 01-18-2011, 08:18 AM

Ok. Thanks for the info.

CERBERUSlucid · 01-19-2011, 12:25 PM

THANX "1slow" where did you find this information...my manual has nothing except to take it to a nissan dealership! WTF...
rep

1slow370 · 01-20-2011, 05:41 AM

service manual not owners manual

Edit: it's like a 1200page z bible

CERBERUSlucid · 01-21-2011, 12:08 PM

Quote:

Originally Posted by 1slow370

service manual not owners manual

Edit: it's like a 1200page z bible

Please tell me there is a PDF download! and may I have the link!

CERBERUSlucid · 01-21-2011, 12:11 PM

I believe its on here correct I found the 2009 service manual is that what you have

Skeeterbop · 01-21-2011, 12:29 PM

2009 370Z service manual

Not sure what has changed in it but I can't imagine it is a whole lot. IIRC there is a link to a 2010 service manual in there as well.

CERBERUSlucid · 01-21-2011, 01:08 PM

Yeah thankx bro I downloaded it!!!

My god its like scriptures! the Z Bible...

1slow370 · 01-21-2011, 11:03 PM

yeah it's on here it's all over the interwebs you can buy it from a dealer too.

01-14-2011, 04:39 PM	#1 (permalink)
CERBERUSlucid Base Member Join Date: Oct 2010 Location: 808MauiHIghST. \| SoCal Posts: 246 Drives: 40th Anniversary 370 Rep Power: 15	Coolant change Well Im swapping out all my hoses currently and was wondering if anyone has done a coolant change since I will need to drain the system? and if you have could you offer any advise regarding it? as well as anything I should be aware of… basically anything that will help me out during the process. I'm not toooo comfortable with doing this, but I have swapped out the hoses on my G35 before so Im not new to it, but I must admit it was a little nerve wrecking doing it for the first time! but I did succeed with no issues. I've researched all the issues others have had after doing the coolant change such as temp. fluxuation and air pockets etc on the G but was wondering if anyone has a DIY or experience with the Z Thank you in advance for any shared knowledge or input __________________ HP is how fast you hit the wall… TQ is how much of the wall you take with you

01-15-2011, 02:51 PM	#2 (permalink)
CERBERUSlucid Base Member Join Date: Oct 2010 Location: 808MauiHIghST. \| SoCal Posts: 246 Drives: 40th Anniversary 370 Rep Power: 15	45 Views and no response?! So im guessing no one has done it yet... __________________ HP is how fast you hit the wall… TQ is how much of the wall you take with you

01-17-2011, 04:58 PM	#3 (permalink)
CERBERUSlucid Base Member Join Date: Oct 2010 Location: 808MauiHIghST. \| SoCal Posts: 246 Drives: 40th Anniversary 370 Rep Power: 15	Anyone?! anyone at all... __________________ HP is how fast you hit the wall… TQ is how much of the wall you take with you

01-17-2011, 07:09 PM	#4 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	When I swapped my hoses on my 350 I just drained the radiator, pulled the hoses off. Put new ones on. Refilled radiator and then let the car run with the cap off and fill as it warms a cycles threw. Never had any air in the system. I also believe there's a air bleeder valve at the heater hose near the firewall if you want to open it up till fluid poors out then close up. Just keep checking until you feel it's good. You also might want to park on a slight hill if you open the bleeder valve. __________________ Last edited by SPOHN; 01-17-2011 at 07:11 PM.

01-17-2011, 07:12 PM	#5 (permalink)
CERBERUSlucid Base Member Join Date: Oct 2010 Location: 808MauiHIghST. \| SoCal Posts: 246 Drives: 40th Anniversary 370 Rep Power: 15	KOOL THANK YOU! Thats what I figured...I've done it on a G35 before, but was wondering if anything was different regarding the process...is that air bleeder cap the green one near the back of the firewall? __________________ HP is how fast you hit the wall… TQ is how much of the wall you take with you

01-17-2011, 07:28 PM	#6 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	Can't remember. Haven't looked on the 370. Make sure it's not the valve on the air conditioning, LOL. __________________

01-18-2011, 06:22 AM	#7 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	alright took a gander through the manual and it mentions nothing of a valve by the firewall on a 370. if it's green cap with a sort of air valve in it don't touch it for the love of betsy or you'll need to recharge your ac. basically it's fill the reservoir, take the air plug out of the drivers side tank of the radiator towards the engine, slowly(less than 2l per minute according to the manual) add coolant to the radiator fill neck until it comes out the hole in the tank, reinstall the screw, refill the radiator, install the cap and warm the car up till the thermostat opens and the lower hose gets hot (stop if the engine begins overheating. let the car cool then add coolant where necessary, and run the car again(then keep doing this 2-3 more times until the level no longer goes down). -Factory manual abridged __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

01-18-2011, 08:18 AM	#8 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	Ok. Thanks for the info. __________________

01-19-2011, 12:25 PM	#9 (permalink)
CERBERUSlucid Base Member Join Date: Oct 2010 Location: 808MauiHIghST. \| SoCal Posts: 246 Drives: 40th Anniversary 370 Rep Power: 15	THANX "1slow" where did you find this information...my manual has nothing except to take it to a nissan dealership! WTF... rep __________________ HP is how fast you hit the wall… TQ is how much of the wall you take with you

01-20-2011, 05:41 AM	#10 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	service manual not owners manual Edit: it's like a 1200page z bible __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

01-21-2011, 12:11 PM	#12 (permalink)
CERBERUSlucid Base Member Join Date: Oct 2010 Location: 808MauiHIghST. \| SoCal Posts: 246 Drives: 40th Anniversary 370 Rep Power: 15	I believe its on here correct I found the 2009 service manual is that what you have __________________ HP is how fast you hit the wall… TQ is how much of the wall you take with you

01-21-2011, 12:29 PM	#13 (permalink)
Skeeterbop A True Z Fanatic Join Date: Jan 2011 Location: Fort Bliss, TX Age: 40 Posts: 1,440 Drives: 2011 GM 370 base SP Rep Power: 16	2009 370Z service manual Not sure what has changed in it but I can't imagine it is a whole lot. IIRC there is a link to a 2010 service manual in there as well.

01-21-2011, 01:08 PM	#14 (permalink)
CERBERUSlucid Base Member Join Date: Oct 2010 Location: 808MauiHIghST. \| SoCal Posts: 246 Drives: 40th Anniversary 370 Rep Power: 15	Yeah thankx bro I downloaded it!!! My god its like scriptures! the Z Bible... __________________ HP is how fast you hit the wall… TQ is how much of the wall you take with you

01-21-2011, 11:03 PM	#15 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	yeah it's on here it's all over the interwebs you can buy it from a dealer too. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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