350z Overheating. - MY350Z.COM - Nissan 350Z and 370Z Forum Discussion



370Z Maintenance & Repair 370Z upkeep and diagnosing/fixing problems

Reply
 
 
 
Thread Tools Search this Thread
Old 01-20-2015, 09:25 PM   #1
alvear1311
Registered User
Thread Starter
 
Join Date: Jan 2015
Location: brownsville,tx
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default 350z Overheating.

Not sure where to post but hope this is the correct spot.

Okay, well its been a ****ing nightmare trying to figure out whats wrong.
Let me start by saying, Radiator blew on me, got that replaced, fans stopped working got that replaced, got new thermostat. Its still overheating.
Took it to my mechanic who bled out the car a few times, car worked for about 3 days. then started noticing heater is blowing icy cold air. so i changed my coolant from an autozone one to a Nissan dealership one. and car started heating. worked fine for about a few days, air went cold, took it to my mechanic again i left it there for 3 days. He gives it back to me working and tells me all he did was bleed it out and it worked for about a week. till i was driving back home and my temperature started going up. ive been bleeding it out all day for 2 days straight and nothing. Today i bought an easy spill funnel and burped the air out of the system. it burps fine till after 20-30 min of the car engine running. The funnel starts to overflow with coolant, and it starts to gush out really bad and throw alot of coolant out. so i shut the engine off. tried it again after a while and it still does the same.

Any ideas on what can be wrong.
Cars been on Tire ramps so the front end is jacked up.
Ive drained the coolant and bought a new bottle. Still does the same.
Ive bled it out using the bleeder valve as well. non stop air bubbles.
and just when no air bubbles come out. i drive works fine after a while cold air starts to come out of heater. and engine starts to overheat.
Does anyone know how to fix this its a nightmare.
alvear1311 is offline   Reply With Quote
Old 01-21-2015, 12:03 AM   #2
bealljk
Registered User
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,633
Thanked 170 Times in 149 Posts
Default

what is your temp guage reading when coolant is bubbling out of the easy spill funnel?
bealljk is online now   Reply With Quote
Old 01-21-2015, 12:07 AM   #3
alvear1311
Registered User
Thread Starter
 
Join Date: Jan 2015
Location: brownsville,tx
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

its normal temp. but heater is blowing ice cold
alvear1311 is offline   Reply With Quote
Old 01-21-2015, 12:12 AM   #4
alvear1311
Registered User
Thread Starter
 
Join Date: Jan 2015
Location: brownsville,tx
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

after 8hrs of working on it. the heater finally blows heat. normal temp. but i am still concerned. After cruising a bit i got back home popped the hood and checked the hoses. Both are hot and swollen. Is that normal? Radiator Cap is hot too. Engine is cool tho. I opened the bleeder valve earlier and air bubbles stopped coming out. took another cruise and yet theres still air bubbles. Also the top of the radiator the black plastic is really hot too. But other than that temp is running normal. The mechanic put his cpu yesterday and changed my temp gauge from 170F to 230F.. so im guessing its overheating but since he changed it to a higher temp read it thinks its normal.
alvear1311 is offline   Reply With Quote
Old 01-21-2015, 06:28 AM   #5
bealljk
Registered User
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,633
Thanked 170 Times in 149 Posts
Default

swollen hoses and 230d would scare me...I would continue to bleed/purge/refill
bealljk is online now   Reply With Quote
Old 01-21-2015, 03:25 PM   #6
alvear1311
Registered User
Thread Starter
 
Join Date: Jan 2015
Location: brownsville,tx
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

No its normal temp but with swollen hoses. Is that normal?
alvear1311 is offline   Reply With Quote
Old 01-21-2015, 03:25 PM   #7
alvear1311
Registered User
Thread Starter
 
Join Date: Jan 2015
Location: brownsville,tx
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

My engine is kinda hot too. But it says normal temp
alvear1311 is offline   Reply With Quote
Old 02-06-2015, 09:51 AM   #8
Z33Garage
Registered User
iTrader: (3)
 
Z33Garage's Avatar
 
Join Date: Jun 2011
Location: Orlando
Posts: 2,696
Thanked 10 Times in 7 Posts
Default

Wow this is weird...almost like theres a restriction somewhere...
Z33Garage is offline   Reply With Quote
Old 02-06-2015, 12:05 PM   #9
jhc
General & Tech Moderator
MY350Z.COM
 
jhc's Avatar
 
Join Date: Jan 2013
Location: ZdayZ
Posts: 7,300
Thanked 1,388 Times in 931 Posts
Default

Mb place a thermometer stick into the rad cap hole, read it when car is up to temp. Prolly accurate to 5 degrees F, also
I don't bother with the bubble thing at purge, I just use it like a way to prime the heater core and let the overflow tank worry about extra. Works great.
Gl
jhc is offline   Reply With Quote
Old 03-27-2015, 01:14 PM   #10
RedBullRR
Registered User
iTrader: (7)
 
RedBullRR's Avatar
 
Join Date: Mar 2007
Location: New York
Posts: 3,215
Thanked 7 Times in 7 Posts
Default

I have same problem, but my car doesnt over heat. Just blows cold air when standing still. I've learned to deal with it.
RedBullRR is offline   Reply With Quote
Old 03-27-2015, 01:42 PM   #11
iideadeyeii
Registered User
iTrader: (6)
 
Join Date: Nov 2011
Location: Lawtown
Posts: 2,412
Thanked 149 Times in 115 Posts
Default

Quote:
Originally Posted by RedBullRR View Post
I have same problem, but my car doesnt over heat. Just blows cold air when standing still. I've learned to deal with it.
That usually means low coolant if it blows warm once rpm is increased
iideadeyeii is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Engine Stalls if not given a little gas on startup liqalu04 Engine & Drivetrain 22 10-25-2017 06:34 AM
question about carfax report issyz 2003-2009 Nissan 350Z 6 07-02-2017 04:04 PM
FS: NISMO S-Tune Catback Exhaust nanotech Exhaust 6 10-02-2015 06:02 AM
Headlights Dsowe Exterior & Interior 9 09-28-2015 11:05 AM
Annoying sound when braking lightly samansharif Brakes & Suspension 1 09-25-2015 01:31 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -8. The time now is 01:16 AM.


Copyright 2002 - 2017, MY350Z.COM All Rights Reserved. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: