1997 Ford Aerostar Engine loosing water, no viable leaks

Tiny
WINEO
  • MEMBER
  • 1997 FORD AEROSTAR
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 187,000 MILES
I am loosing water from radiator, no leaks at engine. Have to check it every day or two, will only drive very limited with it. Wondering if it is head or headgasket. Any common senarios with others
Thursday, March 12th, 2009 AT 6:55 PM

6 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
Do you have any water in the oil. Or oil in the water tank ! Ant gunky yellow white deposit on oil filler cap ! Compression test the cylinders to check the gasket !
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Thursday, March 12th, 2009 AT 9:48 PM
Tiny
WINEO
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  • 4 POSTS
Last week noticed a little bit of white gunk at top of coolant bottle. Haven't done compression test. Even wondering if it will show which head gasket is away.
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Friday, March 13th, 2009 AT 5:24 AM
Tiny
DAVE H
  • MECHANIC
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When you compression test it will tell you which cylinder(s) has LOW compression .. that's the head that the gasket will have blown on !! hope this helps


https://www.2carpros.com/forum/automotive_pictures/266999_AAA2_219.png

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Friday, March 13th, 2009 AT 7:02 AM
Tiny
WINEO
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Just done a compression test, what a beast to work on. All pressures around 150-160. Was told it could be leaking at intake gasket, any ideas?
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Friday, April 3rd, 2009 AT 4:04 PM
Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
You said you have to check the coolant level every couple of days so this is quite a significant leak .. I think you would notice some coolant pooling under the vehicle after a run etc. .. but it could be from the manifold .. can you see any coolant around the manifolds !!


https://www.2carpros.com/forum/automotive_pictures/266999_AAA2_429.png

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Sunday, April 5th, 2009 AT 6:40 AM
Tiny
WINEO
  • MEMBER
  • 4 POSTS
Already have changed the manifold gasket, was told it was a problem with 4.0 v6 engine. Already reassembled but now am running off one cylinder. What a headache, you have to strip so much off to see anything.
There were no visible leaks at engine, still in process.
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Sunday, April 5th, 2009 AT 7:35 AM

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