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Second motorcraft coolant bottle cap that doesn't fit...

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Old Jun 9, 2024 | 08:25 PM
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Second motorcraft coolant bottle cap that doesn't fit...

I keep losing coolant and I suspected the bottle cap. The coolant dye accumulates under the cap.

I ordered a second one and look at this..




 
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Old Jun 9, 2024 | 08:37 PM
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That's rather concerning, Where did you order from? are the "threads" in good shape on the bottle?
 
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Old Jun 9, 2024 | 08:57 PM
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Ya the threads look fine on the bottle.

Last cap fit better but it was also leaking. Both motorcraft.
 
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Old Jun 9, 2024 | 09:05 PM
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Just checked and the cap in the video is a Ford part from Scamazon.


 
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Old Jun 9, 2024 | 10:15 PM
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https://www.riffraffdiesel.com/degas...nt-bottle-cap/

Stop getting parts of cramazon folks. Fleabay is worse.
 
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Old Jun 9, 2024 | 10:40 PM
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when I bought my '02 Excursion 2 years ago, the "Motorcraft" cap on it fit like that.

went to Advance Auto and had them order me a genuine Motorcraft cap, the 1st one was junk, sent it back, the 2nd one fits and clicks like it should
 
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Old Jun 9, 2024 | 10:54 PM
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I'm on the other side of the street. Two motorcraft tanks with caps that came straight from the Ford dealer and they couldn't tighten up because the click part was weak. Bought an aftermarket tank and the cap was much stronger in the click part of the assembly.
 
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Old Jun 10, 2024 | 02:12 AM
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My recollection is match the parts: OEM tank and cap or aftermarket tank and cap. Don't mix.
 
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Old Jun 10, 2024 | 09:25 AM
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If only I could remember where I bought the last expansion tank from...
 
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Old Jun 23, 2024 | 02:10 PM
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I bought a new motorcraft cap from Amazon. Fits better. I guess my coolant bottle is motorcraft and not Ford?

This one doesn't pull off but I'm still losing coolant... Even though water pump and all hoses were changed recently. Need to pressurize system.




 
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Old Jun 23, 2024 | 02:19 PM
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My radiator cap was like that, it would click but was still loose.

I ordered up a new Motorcraft Cap from a local auto parts store, it fits tight like it should
 
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Old Jun 25, 2024 | 07:44 AM
  #12  
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Originally Posted by aawlberninf350
My recollection is match the parts: OEM tank and cap or aftermarket tank and cap. Don't mix.
Correct, dorman/generic china cap & tank threads different that original oem & thus not interchangeable. With pretty much everything being made over there (incl motorcraft) you've got to be careful
 
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Old Jun 25, 2024 | 08:11 AM
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Dorman bottle I put in about a month ago works fine with the OEM cap. In fact it looks and feels no different than the OEM replacement bottle that lasted 100k miles.

Sounds like the bottle might be the problem either way. That looks like it might be one of the old style Dorman bottles that didn’t fit right with the OEM cap, so I’d chuck it just because of that alone. Those pinch clamps on the little sucker hose need to go too. The one on the rad end was actually causing a cold leak.
 
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Old Jun 25, 2024 | 11:06 AM
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Hard pass on Dorman when motorcraft available.
 
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Old Jun 25, 2024 | 10:36 PM
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Dorman probably contract manufactures for Motorcraft.
 
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