Brown coolant.. Back again with a vegeance - Page 2 - The Ford Focus Forum

**FORDSVTPARTS** · 10-08-2006, 05:50 PM

I would suggest getting it in to a Ford dealer and have them flush it.

You might not want to but Ford has a very good solution to this issue due to a problem with brown coolant on pushrod 3.0 v6's in the Taurus and Sable.

The problem in those cars was high acidity in the coolant and in some cases it actually ate holes in the core plugs of the block.

They use a powerful cleaner to flush it clean and then when the system is clean they put in a neutralizing agent that is normally used in diesel engines that prevents the rust from coming back.

I have never seen this in a Focus before and I am not positive that they can do this since the Focus has an aluminum head but it would be worthwhile checking.

Or you could just buy the neutralizer and have your guy add it after another flush.

Again, I am not sure this is okay to do with an aluminum head but I'm not at work so I can't check to be sure.

Regardless, you do NOT want to leave it this way because odds are it's working on the core plugs in your engine right now.

**01BlueZX3** · 10-08-2006, 06:14 PM

If the core plugs go, does it start leaking in the engine? Or even leave out of the engine? I have never heard of core plugs before, dat's why I'm asking. Thanks.

**Jlongoria9** · 10-08-2006, 10:24 PM

if ur core plugs go bad, it will start leaking outside of ur engine and overheat

**01BlueZX3** · 10-09-2006, 09:42 AM

Crap, that's the last thing I need right now... Overheating. *sigh

**Jlongoria9** · 10-10-2006, 06:54 PM

heres a pic of the core plugs (this is not a focus):

as u can see if they go bad, the coolant leaks out of the engine and overheats due to lack of coolant

**01BlueZX3** · 10-10-2006, 09:51 PM

Which side of the engine are the core plugs located on a zetec?

10-08-2006, 05:50 PM	#26 (permalink)
FORDSVTPARTS Premier Sponsor Join Date: Nov 2004 Location: Minnesota Posts: 8,235	Re: Brown coolant.. Back again with a vegeance I would suggest getting it in to a Ford dealer and have them flush it. You might not want to but Ford has a very good solution to this issue due to a problem with brown coolant on pushrod 3.0 v6's in the Taurus and Sable. The problem in those cars was high acidity in the coolant and in some cases it actually ate holes in the core plugs of the block. They use a powerful cleaner to flush it clean and then when the system is clean they put in a neutralizing agent that is normally used in diesel engines that prevents the rust from coming back. I have never seen this in a Focus before and I am not positive that they can do this since the Focus has an aluminum head but it would be worthwhile checking. Or you could just buy the neutralizer and have your guy add it after another flush. Again, I am not sure this is okay to do with an aluminum head but I'm not at work so I can't check to be sure. Regardless, you do NOT want to leave it this way because odds are it's working on the core plugs in your engine right now. __________________ To order from me just call 1-800-328-9552 and ask for Steve or use one of the methods below. Now accepting online orders here http://www.tousleyfordparts.com You can also find us here http://forums.focaljet.com/tousley-ford/ 2002 Silver SVT #2952 , custom CAI , Stage 2 throttle body, VF rear mount, FRPP 9mm wires, EAP/MACH HID's, Borla exhaust, K-W springs, FRPP UDP, Screamin Demon coil, Tuned by Mike at Unique Tuning in S.C.

10-08-2006, 06:14 PM	#27 (permalink)
01BlueZX3 TEAM Member Join Date: Jan 2004 Location: NY Posts: 633	Re: Brown coolant.. Back again with a vegeance If the core plugs go, does it start leaking in the engine? Or even leave out of the engine? I have never heard of core plugs before, dat's why I'm asking. Thanks. __________________ 2001 Malibu Blue ZX3 ATX - 2 1/4" Magnaflow Catback, 4-2-1 OBX Race Header, 2 1/4" Bosal Flexpipe, XCAL2(Tuned by FS), Custom High Flow Cat Underneath(Relocated), Resonator After Cat, K&N Typhoon Short Ram Intake, OEM TB, Massive MSX 90 Performance Ignition Package(MSD Coil w/ Massive Speed System Wires), Motorcraft Spark Plugs, Yellow Lamin-X Fogs, Hella Headlights, 6000K HID, Faze Volt Meter, Faze Vacuum Gauge, SVT Front Upper Grille, 17x7.5 Velox VX-8's on General Exclaim UHP's 215/45/17... 150+K miles & still going STRONG!

10-08-2006, 10:24 PM	#28 (permalink)
Jlongoria9 Senior TEAM Member Join Date: Aug 2006 Location: TX Posts: 1,120	Re: Brown coolant.. Back again with a vegeance if ur core plugs go bad, it will start leaking outside of ur engine and overheat

10-09-2006, 09:42 AM	#29 (permalink)
01BlueZX3 TEAM Member Join Date: Jan 2004 Location: NY Posts: 633	Re: Brown coolant.. Back again with a vegeance Crap, that's the last thing I need right now... Overheating. sigh __________________ 2001 Malibu Blue ZX3 ATX* - 2 1/4" Magnaflow Catback, 4-2-1 OBX Race Header, 2 1/4" Bosal Flexpipe, XCAL2(Tuned by FS), Custom High Flow Cat Underneath(Relocated), Resonator After Cat, K&N Typhoon Short Ram Intake, OEM TB, Massive MSX 90 Performance Ignition Package(MSD Coil w/ Massive Speed System Wires), Motorcraft Spark Plugs, Yellow Lamin-X Fogs, Hella Headlights, 6000K HID, Faze Volt Meter, Faze Vacuum Gauge, SVT Front Upper Grille, 17x7.5 Velox VX-8's on General Exclaim UHP's 215/45/17... 150+K miles & still going STRONG!

10-10-2006, 06:54 PM	#30 (permalink)
Jlongoria9 Senior TEAM Member Join Date: Aug 2006 Location: TX Posts: 1,120	Re: Brown coolant.. Back again with a vegeance heres a pic of the core plugs (this is not a focus): as u can see if they go bad, the coolant leaks out of the engine and overheats due to lack of coolant

10-10-2006, 09:51 PM	#31 (permalink)
01BlueZX3 TEAM Member Join Date: Jan 2004 Location: NY Posts: 633	Re: Brown coolant.. Back again with a vegeance Which side of the engine are the core plugs located on a zetec? __________________ 2001 Malibu Blue ZX3 ATX - 2 1/4" Magnaflow Catback, 4-2-1 OBX Race Header, 2 1/4" Bosal Flexpipe, XCAL2(Tuned by FS), Custom High Flow Cat Underneath(Relocated), Resonator After Cat, K&N Typhoon Short Ram Intake, OEM TB, Massive MSX 90 Performance Ignition Package(MSD Coil w/ Massive Speed System Wires), Motorcraft Spark Plugs, Yellow Lamin-X Fogs, Hella Headlights, 6000K HID, Faze Volt Meter, Faze Vacuum Gauge, SVT Front Upper Grille, 17x7.5 Velox VX-8's on General Exclaim UHP's 215/45/17... 150+K miles & still going STRONG!

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