Coolant Leak - Appears To Be At Oil Pan? - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 12 (permalink) Old 10-27-2009, 02:16 PM Thread Starter
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I have a 99 Taurus with a coolant leak. I have not been able to determine the source of the leak, but I can see where it DRIPS out of. It appears to drip off the oil pan. This doesn't make any sense to me. Does the Taurus have some sort of outside cooling chamber that is around the oil pan? What could be above and in close proximity to the oil pan that could be leaking?

Thoughts?
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post #2 of 12 (permalink) Old 10-27-2009, 02:36 PM
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Coolant from a leak can get blown around by the wind while you drive and end up almost anywhere. It would be helpful if you could give us more information such as your engine model (Vulcan, Duratec, SHO) and what general area of the pan the coolant is dripping from. Different engine models have different leak points like the hoses or the location of the water pump.

Try placing a large clean piece of cardboard under the front of the car and run the engine. the cardboard will show the area where the drip is without wind spray. make sure the cardboard is under the radiator as well.

I hope we can help.

Good luck, Popeye
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post #3 of 12 (permalink) Old 10-27-2009, 02:38 PM
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First off what engine? 24 Valve Duratec or 12 Valve Vulcan?

Have you checked the bottom of the coolant recovery / degas tank? those like to split and puke coolant. If you have the Vulcan the water pump could be going bad, or the front cover could be leaking.

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post #4 of 12 (permalink) Old 10-27-2009, 02:51 PM
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A $2 bottle of coolant leak detecter dye (any auto parts store) & a $10 black light from walmart (find in the light bulbs aisle) will help you find it.
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post #5 of 12 (permalink) Old 10-27-2009, 02:58 PM Thread Starter
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I honestly do not know what type of engine I have. I've gone to the auto part store and gave them the VIN and they told me which numbers meant what engine before, but that was a few years back and I've forgotten.

Regarding where on the oil pan. It is on the backside of the oil pan. The only reason I even know it is the oil pan is I can see the oil filter screwed into it. Specifically on the driver side, rear corner.

I am going to try the dye and the black light and see if that sheds any (black) light on the subject!
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post #6 of 12 (permalink) Old 10-27-2009, 03:15 PM
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Black light comes ready to use with fixture & bulb...walmart still had them this summer...hope they still do.

reading your VIN:

Digit 1: Country of Manufacturer
Digit 2: Manufacturer Make
Digit 3: Vehicle Type
Digit 4: Restraint System
Digit 5: Passenger Car Identifiers
Digits 6 and 7: Line, series and body type
Digit 8: Engine type
Digit 9: check digit
Digit 10: Vehicle model year
Digit 11: assembly plant
Digits 12 through 17: Production sequence number


Digit 1 (Country of Manufacture)

1= USA
2=Canada
3= Mexico
4= USA
5=USA


Digit 2 (Manufacturer Make)
F= Ford
L= Lincoln
M=Mercury
Z= Ford (International)


Digit 3 (Vehicle Type)

1= Limousine
2= MPV
A= Passenger Car
B= Bus
C= Basic (Stripped Chasis)
D= Incomplete Vehicle
E= Passenger Vehicle
H= Incomplete Vehicle
J= Incomplete Vehicle (Hearse)
M= MPV
N= Passenger Vehcle
R= Incomplete Vehicle
T= Truc (Completed)
V= Passenger Vehicle


Digit 4 (Restraint System)

F= Active Belts at all Seating Locations and Front Driver and Passenger Air Bags
H= Same as Above Plus Side Airbags, Curtons or Canopies


Digit 5 (Passenger Car Identifiers)

P= Ford
M= Mercury -or- Lincoln
T= Passenger Cars Imported From outside North America and Non-Ford Cars Built For Ford


Digit 8 (Engine Type)


1= 3.0 (DOHC) (Duratec)
2= 3.0 (OHV) (Vulcan - FFV)
3= 3.0 (OHV Essex)
N= 3.4 (DOHC) (Yamaha - SHO)
U= 3.0 (OHV) (Vulcan)
S= 3.0 (DOHC) (Duratec)


Digit 9 (Check Digit)

Must have a value of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or X



Digit 10 (Engine Type)

T= 1996
V= 1997
W= 1998
X= 1999
Y= 2000
1= 2001
2= 2002
Etc.


Digit 11 (Assembly Plant)

A= Atlanta, Georgia
G= Chicago, Illinois
R= Hermosello, Mexico
W= Wayne, Michigan
X= Ontario, Canada
Y= Wixom, Michigan
5= Flat Rock, Michigan
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post #7 of 12 (permalink) Old 12-14-2009, 11:07 AM
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I have a 2000 FFV Vulcan 3.0 and have EXACTLY the same issue. IT is a slow coolant leak, but definitely showing around the oil pan. Could be air turbulence under the hood causing it to show up there, or not. I'm sure someone else must have encountered this. My belt squeaks upon startup as well, so very well could be water pump cover leaking. VERY hard to see though.....tight along the serpentine belt area. Any help on this or anyone encounter the same thing?
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post #8 of 12 (permalink) Old 12-14-2009, 01:52 PM
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QUOTE (sh01443 @ Dec 14 2009, 09:07 AM)
Quote:
I have a 2000 FFV Vulcan 3.0 and have EXACTLY the same issue. IT is a slow coolant leak, but definitely showing around the oil pan. Could be air turbulence under the hood causing it to show up there, or not. I'm sure someone else must have encountered this. My belt squeaks upon startup as well, so very well could be water pump cover leaking. VERY hard to see though.....tight along the serpentine belt area. Any help on this or anyone encounter the same thing?[/b]
Do the dye & black light (Wal-Mart has a cheap one in their light bulb aisle) thing after dark...you'll find it. A common issue with the vulcan is a leaking timing cover (aka front engine cover) so do look there. There are many possible places for a leak but the timing cover is the most expensive to fix if you cant do it yourself. It tends to leak out of the side of the cover not the bottom & it won't be more that a minor trickle. I strongly recommend you change a vulcan's coolant annually as they are corrosion prone.
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post #9 of 12 (permalink) Old 12-14-2009, 01:58 PM
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Vulcan (12v)


Duratec (24v)


SHO

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post #10 of 12 (permalink) Old 12-14-2009, 02:47 PM
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QUOTE (Two Stooges @ Dec 14 2009, 02:52 PM)
Quote:
QUOTE (sh01443 @ Dec 14 2009, 09:07 AM)
Quote:
I have a 2000 FFV Vulcan 3.0 and have EXACTLY the same issue. IT is a slow coolant leak, but definitely showing around the oil pan. Could be air turbulence under the hood causing it to show up there, or not. I'm sure someone else must have encountered this. My belt squeaks upon startup as well, so very well could be water pump cover leaking. VERY hard to see though.....tight along the serpentine belt area. Any help on this or anyone encounter the same thing?[/b]
Do the dye & black light (Wal-Mart has a cheap one in their light bulb aisle) thing after dark...you'll find it. A common issue with the vulcan is a leaking timing cover (aka front engine cover) so do look there. There are many possible places for a leak but the timing cover is the most expensive to fix if you cant do it yourself. It tends to leak out of the side of the cover not the bottom & it won't be more that a minor trickle. I strongly recommend you change a vulcan's coolant annually as they are corrosion prone.
[/b][/quote]
Even if you change the coolant religiously, you're way more likely than not to have a front cover coolant leak at some point, along with a seeping oil pan gasket. Sometimes the front cover gasket leak will follow a water pump replacement.

If the coolant's been neglected and the engine has corrosion problems, the front cover itself will corrode away until it starts leaking. In that case it'll need a new cover (sometimes they can be repaired) instead of just a new gasket.

Jim S. - Pittsburgh, PA


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