[AT] Off Topic 2001 Ford F250 6.8L engine. Oil pressure gage port size.

[Doug Tallman]

Looking the oil sender up online shows 1/4-18 NPTF. Doug T

On 12/14/2016 10:08 AM, tmehrkam at sbcglobal.net wrote:
> I am having problems with the oil pressure switch on my F250.  Yesterday the gauge "Foo Gage" stayed at zero when the engine was started cold.  I shut it off, checked the oil, started the engine which sounded good and the gauge finally came up.
> I changed the oil and Filter Sunday.  Motorcraft oil and Filter So it could be a number of issues.
>
> 1. Bad oil pressure switch.2. Bad check valve in the filter.3. Worn bearings or oil pump problem.
> I am getting a new filter and would like to install a mechanical gauge.  Does any one have experience with this engine or the 5.4 Liter engine of the same vintage. I am going for parts at Noon and would like to know the port size.  My best guess is 3/8 NPT.
> PS: Drove it home and then back to work with no indications of low oil pressure and the gauge worked fine.  But others have reported oil pump problems on this engine.   I only have 240,000 miles on this thing and do not want to mess it up.
>
>
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