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'98 Falcon EL Coolant Container Bubbling? 

 

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 Post subject: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 6:43 pm 
Oompa Loompa
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Hi guys.

My 1998 Falcon's coolant tank/container has just shown two (that I can see) bubbles. They look like plastic warped by heat. Is this something that I need to worry about? I'd think that the two bubbles are actually the contaiber plastic STRETCHED by hot coolant and therefore are actually weak spots. I also have to wonder why the coolant is getting so hot as to warp the container - or maybe it's just that the container is old. I don't think it has ever been replaced. Do these containers have a lifespan?

 

 

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Last edited by Kaiverta on Mon Apr 18, 2016 8:08 pm, edited 1 time in total.

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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 7:19 pm 
Getting Side Ways
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 8:08 pm 
Oompa Loompa
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Mad2 wrote:
any chance of pics so we know what ya mean?


It's surprisingly hard to photograph properly. I attached two photos to the original post. :)
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 8:11 pm 
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Replace the Header Tank.

Don't use cheap Ebay specials.

 

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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 8:28 pm 
Getting Side Ways
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Kaiverta wrote:
Mad2 wrote:
any chance of pics so we know what ya mean?


It's surprisingly hard to photograph properly. I attached two photos to the original post. :)



yeah replace with a ford header tank not an ebay 'special'
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 9:14 pm 
Oompa Loompa
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Ride: 1998 gLi EL Ford Falcon

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I was thinking of getting it replaced, definitely. Thanks for confirming my decision, guys. :)

Definitely won't go to eBay for such important car parts.
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 9:21 pm 
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Are headers injection moulded? Those bubbles look symmetrical on both sides leading me to believe they are due to a mould injection port. If aftermarket, the manufacturer might have a cheap mould with less discreet injection points over genuine Ford mould.

Just hazarding a guess.

 

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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 9:24 pm 
Oompa Loompa
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Thanks guys for confirming my decision. Definitely will get a legitimate tank, not from eBay. :)
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Mon Apr 18, 2016 9:25 pm 
Oompa Loompa
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phongus wrote:
Are headers injection moulded? Those bubbles look symmetrical on both sides leading me to believe they are due to a mould injection port. If aftermarket, the manufacturer might have a cheap mould with less discreet injection points over genuine Ford mould.

Just hazarding a guess.


I have no idea. I think this car was perfectly stock before we changed the radiator and water pump, recently.
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Tue Apr 19, 2016 6:28 pm 
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Why do they have the bubbles when new then?
Attachment:
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Tue Apr 19, 2016 8:09 pm 
Oompa Loompa
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steve wardle wrote:
Why do they have the bubbles when new then?
Attachment:
unnamed.jpg



My car was not new. It's a 1998 Falcon, so it's 18 years old. :P I am somewhat sure that the tank has never been replaced before, so it's lasted ages (I have no idea what the lifespan is on them, though).

That one looks so nice and clean! :D

I booked my car in for some repairs (including exhaust replacement) this Friday. Thanks again for all the advice, guys.
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Sat Apr 23, 2016 1:55 am 
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For anyone else who comes across this thread those bubbles are normal and are part of the molding of the tank. When i had an el my tank cracked near the cap so i had to replace it. Both the old tank and the new genuine ford tank had the same moldings. That said with the age of yours its only a matter of time until it would have cracked anyway.
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Sat Apr 23, 2016 8:23 am 
Oompa Loompa
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Ride: 1998 gLi EL Ford Falcon

Location: Melbourne
VIC, Australia

sd6 wrote:
For anyone else who comes across this thread those bubbles are normal and are part of the molding of the tank. When i had an el my tank cracked near the cap so i had to replace it. Both the old tank and the new genuine ford tank had the same moldings. That said with the age of yours its only a matter of time until it would have cracked anyway.


Thank you for that information. I got the tank replaced and it has those bubbles, but they are smooth and perfectly symmetrical, and definitely ate supposed to be there. I had never noticed the mouldings on the old tank despite looking at it a thousand times over the last three months (due to coolant leak issues that are now fixed), but I guess they've always been there? Regardless, the bubbles on the old tank had warping. The left bubble had a secondary 'whoter' bubble on it, and they BOTH were very pointed and getting pointier. There's also a mark beneath the right bubble, so I think the tank was ready to go, regardless.

It's a relief to hear that these bubbles are normal, but my old tank definitely looked a worse than the new ones. The bubbles were weakening. :(

The last thing to 'fix/replace' on the car is a bit of rust and then he should be good. :D thanks again everyone for providing information and helping me through my car repair ordeal.
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 Post subject: Re: '98 Falcon EL Coolant Container Bubbling?
Posted: Thu May 12, 2016 2:30 pm 
Oompa Loompa
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Ride: 1998 gLi EL Ford Falcon

Location: Melbourne
VIC, Australia

I got a new tank and it does indeed have the bubbly molding, though the older one had bubbles on TOP of the molded bubbles, so I knew that it was definitely about to fail.

New problem arose with the new tank. The car dumped all its coolant (through the overflow hose) twice, once each after an hour long trip. I did some research and found that it could have been due to not enough pressure in the cooling system to keep the temperature from rising? Or something to that effect... Anyway, one of the solutions was to change the cap. I still had the older cap from the previous coolant tank (that cap was actually newer than the coolant tank and it never gave me problems so I knew it'd be fine). I called up my mechanic, told him the story, asked him what he suggested, and he said that I could try changing the cap. I was happy with that advice as that was what I was going to try, anyway, so I changed the cap over and have done two long trips along with local driving and the coolant is nice and steady. :) No spillover. So for anyone who has a problem with their car dumping all the coolant, take into account that it could possibly be the cap.
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