4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Coolant Leak around intake manifold

Thread Tools
 
Search this Thread
 
Old 12-22-2017, 01:54 PM
  #21  
WhiteFoxGT
Resident Ford Troll
 
WhiteFoxGT's Avatar
 
Join Date: Jul 2006
Location: Delaware
Posts: 6,717
Default

Originally Posted by Z28KLR
This is exactly what I would do as well, except perhaps I'm not brave enough to try sanding the surface with anything. Be careful with that, it's easier to remove a little bit of material than it is to put it back if you go overboard.
Originally Posted by Z28KLR
If you really really really feel the need to use rtv, I would apply a very thin coat only to the gasket in the area of the coolant passage. Very thin, basically just enough so you could say that you used some. Allow it to dry and bond to the gasket before assembly.
have to use common sense when applying surface conditioning discs to any metallic surface.

also, if you plan on using RTV, the correct way would be apply it and then immediately slam it together. Allowing it to dry and fill in the voids with the gaskets torqued and spread. Allowing it to dry first before assembly wouldnt work as well in my opinion

Last edited by WhiteFoxGT; 12-22-2017 at 02:04 PM.
WhiteFoxGT is offline  
Old 12-23-2017, 12:29 AM
  #22  
torsiondrummer
Thread Starter
 
torsiondrummer's Avatar
 
Join Date: Dec 2017
Location: WA
Posts: 39
Default Got it installed! But....

Originally Posted by Z28KLR
If you really really really feel the need to use rtv, I would apply a very thin coat only to the gasket in the area of the coolant passage. Very thin, basically just enough so you could say that you used some. Allow it to dry and bond to the gasket before assembly.
So, I used a high temp permatex, in the pitting, put it all back together, installed a new water pump, new plugs too - Used distilled water, started right up -However, the check engine light is on now and it seems like one of the hoses to the plenum is flattening from a strong vacuum - any thoughts?
torsiondrummer is offline  
Old 12-23-2017, 08:57 AM
  #23  
Coosawjack
2nd Gear Member
 
Coosawjack's Avatar
 
Join Date: May 2016
Location: SC
Posts: 240
Default

Wrong rotation water pump or T-stat in backwards maybe??
Coosawjack is offline  
Old 12-23-2017, 09:27 AM
  #24  
WJL
3rd Gear Member
 
WJL's Avatar
 
Join Date: Feb 2013
Location: PA
Posts: 556
Default

Again gotta agree with White Fox.

Take it to the part store and have it scanned, just could be some anti-freeze entered the cylinder during repair.

As far as the hose collapsing, Hmm there is only a couple of hoses that connect to the plenum, IAC hose, EVAP hose, EGR and HVAC. might be forgetting one check to see if they are soft and need to be replaced, post the code if you scan it.
WJL is offline  
Old 12-23-2017, 09:42 AM
  #25  
WJL
3rd Gear Member
 
WJL's Avatar
 
Join Date: Feb 2013
Location: PA
Posts: 556
Default

I just have to ask are you confusing the heater hoses with plenum hoses? if the inlet and outlet heater hoses are switched the water pump could collapse the hose.

Just a WAG.

Thermostat in up side down, if that is even possible is an automatic/instant overheat, the point of the thermostat points up, spring goes down.

Good luck
WJL is offline  
Old 12-24-2017, 11:31 AM
  #26  
torsiondrummer
Thread Starter
 
torsiondrummer's Avatar
 
Join Date: Dec 2017
Location: WA
Posts: 39
Default I’ve got it all back together

Thanks all, luckily I’m not confusing any parts, and they all go in one way lol -
So, check engine light is extinguished- good to go, may have been an anomaly? So, I got everything back in, Used a permatex liquid metal filler, high temp on those pitting sections. Low and behold, two days later, no leaks, except from one side of the fuel injectors which I didn’t have fully tightened- weird! And gas everywhere ( As I drove her yesterday to autozone to return a torque wrench )
Anyways, I still notice one of the vacuum hoses attached to the plenum is pulling a strong vacuum. Any ideas to these types of engines?
Originally Posted by WJL
I just have to ask are you confusing the heater hoses with plenum hoses? if the inlet and outlet heater hoses are switched the water pump could collapse the hose.
Just a WAG.

Thermostat in up side down, if that is even possible is an automatic/instant overheat, the point of the thermostat points up, spring goes down.

Good luck
torsiondrummer is offline  
Old 12-25-2017, 04:31 PM
  #27  
torsiondrummer
Thread Starter
 
torsiondrummer's Avatar
 
Join Date: Dec 2017
Location: WA
Posts: 39
Question Vacuum from hose to plenum, and extra parts from intake manifold,

Just posting pics....
Anyways, I still notice one of the vacuum hoses attached to the plenum is pulling a strong vacuum. Any ideas to these types of engines? My step dad was saying it could be an old hose, however, I think it was put there for flexibility? Maybe a braided hose would prevent the collapse?

Plus a couple of extra parts from the intake manifold -

the strong vaccum? Extra pieces from on-line order of intake manifold
Driver side chassis, fuel injector, possible leak without spacers?


Vacuum on plenum hose
Attached Thumbnails Coolant Leak around intake manifold-img_5839.jpg   Coolant Leak around intake manifold-mustangpic2.jpeg   Coolant Leak around intake manifold-mustangpic3.jpeg  
torsiondrummer is offline  
Old 12-26-2017, 02:43 PM
  #28  
Coosawjack
2nd Gear Member
 
Coosawjack's Avatar
 
Join Date: May 2016
Location: SC
Posts: 240
Default

Is your PCV valve clean and working properly??
Coosawjack is offline  
Old 01-12-2018, 07:38 PM
  #29  
torsiondrummer
Thread Starter
 
torsiondrummer's Avatar
 
Join Date: Dec 2017
Location: WA
Posts: 39
Red face PCV Good togo

Well fella's thanks for all the tips and advice. The car ran great for those couple of weeks. I bought a new PCV and hose, and that seemed to work. Now I have a seperate possible clutch issue I will post in a seperate threat, but if you're reading this, he link, I posted it on you tube:

Thanks!
Eric
torsiondrummer is offline  
Old 01-17-2018, 04:38 PM
  #30  
WJL
3rd Gear Member
 
WJL's Avatar
 
Join Date: Feb 2013
Location: PA
Posts: 556
Default

That sounds like a vacuum leak, not a clutch. will it idle

JMO
WJL is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MustBeStang
4.6L General Discussion
3
09-23-2013 10:47 AM
MustBeStang
4.6L (1996-2004 Modular) Mustang
2
11-06-2012 10:43 PM
texas_stang02
4.6L (1996-2004 Modular) Mustang
14
10-04-2012 01:35 PM
CyprusMustang
Classic Mustangs (Tech)
18
04-05-2009 12:36 PM
apple man
General Tech
0
09-14-2007 11:35 PM



Quick Reply: Coolant Leak around intake manifold



All times are GMT -5. The time now is 04:08 PM.