Go Back  Maxima Forums > Maxima Discussions > 4th Generation Maxima (1995-1999)
Reload this Page >

anti-freeze behind the block dripping or spraying onto exhaust manifold

4th Generation Maxima (1995-1999) Visit the 4th Generation forum to ask specific questions or find out more about the 4th Generation Maxima.

anti-freeze behind the block dripping or spraying onto exhaust manifold

Old 06-10-2019, 10:49 PM
  #1  
Senior Member
Thread Starter
iTrader: (4)
 
Join Date: Jan 2006
Location: in my max, pa. :p
Posts: 6,616
anti-freeze behind the block dripping or spraying onto exhaust manifold

as stated, after finally getting the max running right for the first time in over a year anti-freeze started leaking in the back of the block under the 2 hoses on the firewall, ( new ) and the engine was smoking to the point that i had to pull over and pop the hood to try and see what the hell was going on. i still have code p0443, and just got the car inspected 2 Wednesdays ago and she ran perfect that day. was running the ac and everything was fine and went to drive to work on thursday and then the leak. i bought the 2 throttle body heater hoses and thought i'd be able to fix, but i can't see were they go, anyone have a pic of the 2 coolant lines going to the throttle body, would appreciate that and any ideas about where the ant-freeze is coming from, thanks
max ride 41 is offline  
Old 06-10-2019, 11:00 PM
  #2  
Senior Member
iTrader: (51)
 
Join Date: Apr 2012
Location: KCK
Posts: 5,183
I would delete those throttle body coolant lines IMHO no matter your climate

The leak could be the heater hose still..either not tight enough or too tight that they cracked the plastic core nipples

Sucks man
Fakie J Farkerton is offline  
Old 06-11-2019, 05:54 AM
  #3  
Senior Member
Thread Starter
iTrader: (4)
 
Join Date: Jan 2006
Location: in my max, pa. :p
Posts: 6,616
Originally Posted by Fakie J Farkerton View Post
I would delete those throttle body coolant lines IMHO no matter your climate

The leak could be the heater hose still..either not tight enough or too tight that they cracked the plastic core nipples

Sucks man
don't know if that's the issue, but i looked into that possibility and i know that would be a ***** of a job to do.i can't see where the coolant's coming from and/or how to delete those lines? how to test? anyone have pics for them and a similar issue?
max ride 41 is offline  
Old 06-11-2019, 09:26 AM
  #4  
Senior Member
iTrader: (2)
 
Join Date: Dec 2000
Location: Tampa Bay
Posts: 2,013
These are super handy for this type of investigation ...

Turbobink is offline  
Old 06-11-2019, 09:51 AM
  #5  
Super Moderator
iTrader: (43)
 
The Wizard's Avatar
 
Join Date: Feb 2002
Location: Southern California
Posts: 15,547
^+1. Coolant issues are generally easy to trace and fix. Besides the coolant lines that run through the TB, don't forget the coolant line that runs through the manifold where the EGR is located. Fill up whatever coolant you lost, start the car, and try to determine the source of the leak by using the mirror. If all else fails, take off the TB and start inspecting all the coolant lines in that area. Inspect the large coolant lines near the passenger firewall associated with the heater core too.
The Wizard is offline  
Old 06-11-2019, 01:46 PM
  #6  
JvG
Senior Member
 
Join Date: Oct 2012
Location: Portland, Oregon
Posts: 2,084
As I've mentioned previously, the throttle body coolant hoses attach underneath and onto to tb.

You will need to remove the air cleaner housing and the big black air hose first.
JvG is offline  
Old 06-11-2019, 10:15 PM
  #7  
Junior Member
 
Join Date: Aug 2017
Location: California
Posts: 45
There are two smaller and shorter coolant hoses connected to the bottom of the intake manifold by the firewall next to the EGR tube. Parts# 14056NA and 14056NB

https://www.nissanpartsdeal.com/part...se-piping.html
Jack Sh!t is offline  
Old 06-12-2019, 08:44 PM
  #8  
Senior Member
Thread Starter
iTrader: (4)
 
Join Date: Jan 2006
Location: in my max, pa. :p
Posts: 6,616
Originally Posted by Jack **** View Post
There are two smaller and shorter coolant hoses connected to the bottom of the intake manifold by the firewall next to the EGR tube. Parts# 14056NA and 14056NB

https://www.nissanpartsdeal.com/part...se-piping.html
now i'm really confused, how many gosh-darn coolant lines are there behind and near the back of the engine? i did the 2 on the firewall, not sure what other ones other than the egr as wiz stated and the 2 under the throttle body?
max ride 41 is offline  
Old 06-12-2019, 10:08 PM
  #9  
Super Moderator
iTrader: (43)
 
The Wizard's Avatar
 
Join Date: Feb 2002
Location: Southern California
Posts: 15,547
Originally Posted by max ride 41 View Post
now i'm really confused, how many gosh-darn coolant lines are there behind and near the back of the engine? i did the 2 on the firewall, not sure what other ones other than the egr as wiz stated and the 2 under the throttle body?
He's talking about the exact same ones that I mentioned in my first post. The U shaped hoses connect to the hard tubes at the back of the manifold at the EGR.
The Wizard is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Roblee
5th Generation Maxima (2000-2003)
20
01-16-2017 01:42 PM
max ride 41
4th Generation Maxima (1995-1999)
33
11-06-2012 04:29 AM
Brianrex
4th Generation Classifieds (1995-1999)
1
05-22-2012 02:00 PM
CVicVogel
5th Generation Maxima (2000-2003)
1
02-09-2005 10:14 AM
Cyque
3rd Generation Maxima (1989-1994)
4
11-06-2001 04:23 AM


Thread Tools
Search this Thread
Quick Reply: anti-freeze behind the block dripping or spraying onto exhaust manifold


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

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.