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Discussion Starter #1
Hey all. So finally everything lined up today for me to look for my coolant leak. Laziness was my biggest problem. Anyways any one have any hints as to where the leak is? I couldn't really tell, and am not familiar with the coolant system. I have never changed a thermostat. That's why I am on the newbie forum. Any ideas?

Here is the top of one of the sensors: There was coolant on the bottom and the cable looks a little bulged.


The view from the front:


Some background: I have to refill the reservoir every week or so. I had my mechanic flush by system a while ago and this problem seemed to happen at the same time. Seems to be getting worse.

Also any ideas what is going on here:


I think my AC is leaking, but I am not sure what those things are.
 

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I maybe wrong but it looks like there is coolant around the water pump area. I would check to see if it is leaking there. That is the only thing i see so far.
 

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Oh i almost forgot it could be the timing cover , what the dealer calls the front engine cover gasket. I had that done under recall a while back.
 

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Discussion Starter #5
Yeah the thing is I couldn't see very well, too much stuff in the way. I guess the suggestion would be to start tearing some stuff off and having a better look? Once I start pulling the intake manifold I will need to replace the gaskets right?
 

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Looks like your coolant sensor hose is leaking. You may want to try tightening it first to see if that helps.



This connection:

 

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white lincoln - He has a 3.8 v6 - why the 4.6 v8 diagram and discussion ?




.
 

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white lincoln - He has a 3.8 v6 - why the 4.6 v8 diagram and discussion ?
Ya... I knew that... I was just testing you guys to see if you were paying attention... :bs::zpuke:


Crap, I just noticed that he had 6 connections on the electronic ignition... jeez, what a chump.:zbash:
 

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rich uncle - you're best bet right now - other than taking it back to the mechanic that did the flush - might be to wipe off all the visible coolant from your engine, and then start the car and watch to see where it is coming from. It is not possible to determine where it is leaking based on these photographs.
 

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Discussion Starter #12
Thanks for the suggestions. I would take it back to my mechanic but I moved.

I will take a better look this weekend. I was just checking to see if it was an obvious problem. Like "oh you have liquid in that area, it's most likely ...". I will let you guys know how it goes.
 

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Thanks for the suggestions. I would take it back to my mechanic but I moved.

I will take a better look this weekend. I was just checking to see if it was an obvious problem. Like "oh you have liquid in that area, it's most likely ...". I will let you guys know how it goes.
Ya, try tightening the clamp on that hose for the sensor and see if the leaking stops. You can go real tight on those hose clamps. Pour some water around the area to get the coolant that is there out so you can see if it comes back after tightening the clamp. Maybe the guy used that hose to flush the system?

As for the AC, clean off those areas with some gunk cleaner or something that removes grease, have the pressure of the AC system checked and see if it lost coolant and if the leaking persists (after cleaning the lines).
 

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Discussion Starter #14
well I tightened the hose clamp and it still leaks. I think it leaks where that tube connecting to the manifold.

I was at a pull a part for an unrelated thing and I saw a 3.8L in a mustang with the same tube (the one with the sensor on the top and the line going to the heater core). I could not for the life of me get that thing off. I didn't have the right tools though...big leverage pipe, hammer, etc. Then I figured "what am I doing maybe I should just take the whole manifold. Well, I was a little in over my head. I got stuck at the fuel rail and figured I took too much time and left it.

oh by the way, just curious..lets say i needed to replace the flexible piece of hose that runs from the tube to the hard line going to the heater core. Would I need to replace the hard line to?
 

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The view from the front:



that looks EXACTLY like mine when i had to replace the timing cover gasket.
 

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I Believe Your Right!!!!!!!!!!!

IT LOOKS TO BE A TIMING CASE GASKET WHAT PITA TO DO :eek: TRY TIGHTING ALL THE BOLTS A TWEAK :) AND ADD THE DRY POWDED SEALEANT AS WELL :D IT SOMETIME DOES THE TRICK:cool: IF NOT MUCH WORCK TO DO:mad:
 

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actually it's not that bad to do, if it is the timing cover gasket.

i suggest DO NOT try to tighten the bolts. i did this and one snapped in the block. now that makes it a bich.

pretty straight forward process. remove the belt, p/s pump (and bracket), waterpump, and the the cover comes off. that is IIRC.

here's the thread from when i did mine: http://forums.tccoa.com/showthread.php?t=100845
 

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I would not suggest the powder sealant. I have had it seal, and then plug things up later and equal more work that it was worth.

I'd fix it right the first (and last) time.
 

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oh by the way, just curious..lets say i needed to replace the flexible piece of hose that runs from the tube to the hard line going to the heater core. Would I need to replace the hard line to?
You can cut off the crimp and remove the section of rubber hose, then run new hose with hose clamps.
 
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