4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Coolant dark brown and lots of white smoke

Thread Tools
 
Search this Thread
 
Old 10-01-2018, 11:36 AM
  #11  
dawson1112
5th Gear Member
 
dawson1112's Avatar
 
Join Date: Jul 2012
Location: ohio
Posts: 3,628
Default

Your best bet is to get a service manual, and follow the procedures for replacing the head gasket. You will also need to have the oil changed, and flush the cooling system to remove any oil/sludge. You will need to change the oil 2 or 3 times in the first few months to clean any sludge from the engine.
dawson1112 is offline  
Old 10-01-2018, 01:03 PM
  #12  
Z28KLR
4th Gear Member
 
Z28KLR's Avatar
 
Join Date: Nov 2009
Location: SoCal
Posts: 1,826
Default

Originally Posted by 04_2v
How hard is it to change the head gasket?? Or how much from a shop
It's considered major surgery. Can be done with the engine in the car but just about everyone I know whose been there and done that would advise that you pull the engine and mount it to a stand. You will also want new timing components (chains, tensioners and guides) since that's all gotta come apart anyway. Adds about $3-400 to your parts bill.

Shop labor, I'm not sure but I could see it being billed at around 8 hrs labor, at least.
Z28KLR is offline  
Old 10-01-2018, 02:20 PM
  #13  
08'MustangDude
Banned
 
08'MustangDude's Avatar
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 2,327
Default

Originally Posted by 04_2v
The engine wasn't overheating at all so what made it blow the gasket? And what is the smell that came right after?
It was weak, going 120MPH blew it out, just exposed the weak point.

All pressures rise when you're going that fast; water pressure, and continual compression
pressure inside the cylinders at higher revs. It's not an exact science, but had you not gone
120 miles per hour, it would have just happened later on.


08'MustangDude is offline  
Old 10-01-2018, 03:53 PM
  #14  
04_2v
Thread Starter
 
04_2v's Avatar
 
Join Date: Oct 2018
Location: Nebraska
Posts: 15
Default

So do you recommend I buy this, https://www.americanmuscle.com/frpp-...ge-9604gt.html , have a shop install it then clean my coolant tank, change my oil and I'm set?
04_2v is offline  
Old 10-01-2018, 04:35 PM
  #15  
04_2v
Thread Starter
 
04_2v's Avatar
 
Join Date: Oct 2018
Location: Nebraska
Posts: 15
Default

Also, I don't think I mentioned that the dark brown coolant got all over the battery and other surrounding areas. Is this another problem or could that still be because of the head gasket?
04_2v is offline  
Old 10-01-2018, 05:09 PM
  #16  
08'MustangDude
Banned
 
08'MustangDude's Avatar
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 2,327
Default

It blew out the overflow bottle, just clean it up.

https://www.americanmuscle.com/frpp-...ge-9604gt.html
Says out of stock for 05-09 V6.
08'MustangDude is offline  
Old 10-01-2018, 05:57 PM
  #17  
04_2v
Thread Starter
 
04_2v's Avatar
 
Join Date: Oct 2018
Location: Nebraska
Posts: 15
Default

Yeah it is out of stock. I’ll just have to find it somewhere else.
04_2v is offline  
Old 10-02-2018, 12:46 AM
  #18  
04_2v
Thread Starter
 
04_2v's Avatar
 
Join Date: Oct 2018
Location: Nebraska
Posts: 15
Default

Thanks to everyone for the replies, after talking to two relatives who are mechanics, they are 90% sure it is just a bad radiator cap xDD
04_2v is offline  
Old 10-02-2018, 05:23 AM
  #19  
08'MustangDude
Banned
 
08'MustangDude's Avatar
 
Join Date: Jan 2018
Location: Pennsylvania
Posts: 2,327
Default

First of all, it's not the cap, and there is no radiator cap. There is a cap on the
reservoir. If you saw DARK BROWN liquid in it, then went back later and
it was gone, it didn't shoot out the cap, the engine sucked it up.

You have a MAJOR problem, but hey, do what you want man, we'll be reading
from you again, real soon. Those caps don't go bad, and they are not the
same as a radiator cap. Good luck man, you're gonna need it if all you plan
on replacing is the cap, which isn't the problem...
08'MustangDude is offline  
Old 10-02-2018, 07:19 AM
  #20  
ZEN357
2nd Gear Member
 
ZEN357's Avatar
 
Join Date: Feb 2018
Location: Pittsburgh, PA
Posts: 166
Default

Blown head gasket, don't move it. Fix it or have it towed.
ZEN357 is offline  


Quick Reply: Coolant dark brown and lots of white smoke



All times are GMT -5. The time now is 05:25 PM.