Nissan 370Z Forum  

Radiator Flush now no heater is spotty

I don't think air in the system is the issue. Dealers don't mess around with bleeding funnels and wasting time idling the car until the thermostat opens. They use a

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Like Tree10Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 03-06-2018, 03:52 PM   #16 (permalink)
Track Member
 
Join Date: Dec 2011
Location: chicago
Posts: 783
Drives: '12 G37 6MT
Rep Power: 14
Jsolo is just really niceJsolo is just really niceJsolo is just really niceJsolo is just really niceJsolo is just really nice
Default

I don't think air in the system is the issue. Dealers don't mess around with bleeding funnels and wasting time idling the car until the thermostat opens. They use a special tool to vacuum fill the system leaving no air pockets, same as the factory.

https://www.uview.com/index.cfm?dsp=...productid=5120

No issues with heat after I did the flush/fill on my car using this tool. Refilling it took all of a few minutes.

More than likely the thermostat is stuck open.
__________________
G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring

For sale links
Jsolo is offline   Reply With Quote
Old 03-06-2018, 11:06 PM   #17 (permalink)
A True Z Fanatic
 
Join Date: Oct 2014
Location: socal
Posts: 1,084
Drives: 370z
Rep Power: 13434
nis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond reputenis350 has a reputation beyond repute
Default



the car would likely to run hot or even overheat with air in the system.

stuck open thermostat is likely the cause....

Quote:
Originally Posted by Jsolo View Post
I don't think air in the system is the issue.

No issues with heat after I did the flush/fill on my car using this tool. Refilling it took all of a few minutes.

More than likely the thermostat is stuck open.
nis350 is offline   Reply With Quote
Old 03-12-2018, 12:09 PM   #18 (permalink)
Track Member
 
Fountainhead's Avatar
 
Join Date: Feb 2013
Location: FL
Posts: 834
Drives: 2019 Civic Type R
Rep Power: 14
Fountainhead has much to be proud ofFountainhead has much to be proud ofFountainhead has much to be proud ofFountainhead has much to be proud ofFountainhead has much to be proud ofFountainhead has much to be proud ofFountainhead has much to be proud ofFountainhead has much to be proud of
Default

Hi OP,
I recently bled my green coolant and replaced with Blue. I followed an Infiniti G37 video a mechanic (made in his garage) and had no problems whatsoever. After all was said and done I filled my reservoir at the full line and it emptied a small amount into the system after the change. I did nothing special, just a normal drain and replace. There are two screws to remove on the radiator endbells to allow each side to push out the air. I bought new O-Rings for these plastic screws and no issues at all since.
Sorry to hear you're having issues, and I hope you get it sorted out quickly.
Fountainhead is offline   Reply With Quote
Old 03-12-2018, 04:09 PM   #19 (permalink)
Track Member
 
Join Date: Mar 2016
Location: San jose
Posts: 846
Drives: 2013 370z sport
Rep Power: 3384
Jhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond repute
Default

Quote:
Originally Posted by Jsolo View Post
I don't think air in the system is the issue. Dealers don't mess around with bleeding funnels and wasting time idling the car until the thermostat opens. They use a special tool to vacuum fill the system leaving no air pockets, same as the factory.

https://www.uview.com/index.cfm?dsp=...productid=5120

No issues with heat after I did the flush/fill on my car using this tool. Refilling it took all of a few minutes.

More than likely the thermostat is stuck open.
You would be surprised how few techs actually own vacuum bleeders. At Acura zero techs owned one. They are more common in domestic and euro but even then at my last dealer that was domestic (before I finally got out 2 years ago) out of somewhere between 35-42 techs depending on how many were quitting vs new hires only about 5 of us owned a vacuum filler. Most don’t even own a coolant system pressure test kit. Dealers today mostly hire at low wage at flat rate and those tools aren’t cheap. We had a corvette come back 3 times for overheating after a service because they didn’t use a vacuum filler and air got trapped in the crossover piping before it finally got sent over to us drivability guys to fix it.
Rusty likes this.

Last edited by Jhill; 03-12-2018 at 04:11 PM.
Jhill is offline   Reply With Quote
Old 03-12-2018, 05:07 PM   #20 (permalink)
Ronin Samurai - Assassin
 
Rusty's Avatar
 
Join Date: Dec 2011
Location: Fayettenam,Pennsyltucky
Age: 68
Posts: 34,811
Drives: 2011 Nismo GM 6M
Rep Power: 2684436
Rusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond repute
Unhappy

Most techs are trying to get bye with the bare minimum. Can't afford most of the specialty tools. I been in that boat and it was sinking.
Jhill and StormWhite like this.
__________________

浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html
Rusty is offline   Reply With Quote
Old 03-12-2018, 09:19 PM   #21 (permalink)
Track Member
 
Join Date: Dec 2011
Location: chicago
Posts: 783
Drives: '12 G37 6MT
Rep Power: 14
Jsolo is just really niceJsolo is just really niceJsolo is just really niceJsolo is just really niceJsolo is just really nice
Default

Quote:
Originally Posted by Jhill View Post
You would be surprised how few techs actually own vacuum bleeders. At Acura zero techs owned one. They are more common in domestic and euro but even then at my last dealer that was domestic (before I finally got out 2 years ago) out of somewhere between 35-42 techs depending on how many were quitting vs new hires only about 5 of us owned a vacuum filler. Most don’t even own a coolant system pressure test kit. Dealers today mostly hire at low wage at flat rate and those tools aren’t cheap. We had a corvette come back 3 times for overheating after a service because they didn’t use a vacuum filler and air got trapped in the crossover piping before it finally got sent over to us drivability guys to fix it.
I hear you. I got the tool because a dealer drain/refill is at least $150+. It's paid for itself already after servicing two cars. Can't put a price tag on time/hassle saved by not having to deal with bleed screws or worry about car over heating. I suppose from a tech perspective, if customer is getting billed per hour then the funnel makes more sense.
__________________
G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring

For sale links
Jsolo is offline   Reply With Quote
Old 03-13-2018, 03:10 PM   #22 (permalink)
Track Member
 
Join Date: Mar 2016
Location: San jose
Posts: 846
Drives: 2013 370z sport
Rep Power: 3384
Jhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond reputeJhill has a reputation beyond repute
Default

Quote:
Originally Posted by Jsolo View Post
I hear you. I got the tool because a dealer drain/refill is at least $150+. It's paid for itself already after servicing two cars. Can't put a price tag on time/hassle saved by not having to deal with bleed screws or worry about car over heating. I suppose from a tech perspective, if customer is getting billed per hour then the funnel makes more sense.
No the vacuum filler makes the most sense because techs get paid flat rate so if they go over the time charges they are working for free, also if it comes back then it is getting looked at again for free. So doing it once and doing it right is very important for a tech (why I personally have one). It's just that techs do not make much money and that mixed with the large amount of warranty work (which pays even less time than you could believe) you're almost guaranteed to be working for free at least a few hours a day sometimes, on a big job your entire week may be a loss. Also a lot of cars now have included services which pay the tech a lot less time, it used to be you made your time back on that type of work to offset the warranty garbage but now that's gone and the warranty garbage is still there. Also that won't be the only tool the tech needs, they will have an open account with Mac, Snap on and Matco and have a decent amount of debt to them. As Rusty said most techs are just barely trying to get by and if they have been in it for a little while they are not looking to invest more in a field going nowhere and are looking to save as much and trying to get out.
Rusty and Spooler like this.
Jhill is offline   Reply With Quote
Old 03-13-2018, 06:17 PM   #23 (permalink)
Ronin Samurai - Assassin
 
Rusty's Avatar
 
Join Date: Dec 2011
Location: Fayettenam,Pennsyltucky
Age: 68
Posts: 34,811
Drives: 2011 Nismo GM 6M
Rep Power: 2684436
Rusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond repute
Talking

When I was a tech (mechanic in my day) in the early '80's. We had a saying. I own my soul for $80.00 a week for life to the Snap-On guy.
__________________

浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html
Rusty is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wtb oem hood, nismo front bumper, radiator, radiator suport etc... 11nism0 Wanted 0 10-06-2015 11:26 PM
Z1 Motorsports Silicone Hoses... PCV, Heater, Radiator, Brake Booster, Post-MAF etc. Z1motorsports Drivetrain/Engine 36 10-05-2015 09:57 AM
Heater/Coolant/Radiator/Whatever-you-want-to-call-it Hose and Start Up Questiona vtec to vvel Engine & Drivetrain 7 03-11-2015 03:35 PM
Heater problem? Drex Nissan 370Z Warranty / Scheduled Maintenance / Servicing / Repairs 12 03-07-2014 07:42 PM


All times are GMT -5. The time now is 05:05 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2