remove that t-stat and get MOTORCRAFT ONLY.
i found a radiator at my local parts store for 160 bucks.
its ugly, but it works.
if you dont replace the radiator, bigger problems will come to light....
what is going on????
- Thread starter SPR1NK
- Start date
remove that t-stat and get MOTORCRAFT ONLY.
i found a radiator at my local parts store for 160 bucks.
its ugly, but it works.
if you dont replace the radiator, bigger problems will come to light....
SPR1NK
Full Access Member
Ok, I'll see about picking up a motorcraft thermostat today, I assume I'd have to get that at the stealership?
What makes the Napa thermostats so bad to use?
What makes the Napa thermostats so bad to use?
Hydro-idi
Full Access Member
Aftermarket thermostats for these engines have smaller passages, which restrict water flow when fully open. This could lead to overheating symptoms. Mine had an aftermarket thermostat in it when I bought it. 2 of the 3 arms holding the center of stat in were broken. Couldn't figure out why truck would never reach operating temps, and it was only 5 yrs old!
Replaced with motorcraft a few years ago and haven't had any problems since. Cheap insurance IMO.
Replaced with motorcraft a few years ago and haven't had any problems since. Cheap insurance IMO.
SPR1NK
Full Access Member
Oh that makes alot of sense, I could see how smaller passages would cause issue
SPR1NK
Full Access Member
So if this is an issue that's caused by a screwy thermostat and a bad radiator, what caused the oil pressure to drop like it did?
The hotter the oil, the thinner it gets.... so to speak....... if your coolant got to 220, then the oil got to at least 220....
Look at cold idle oil pressure, vs hot idle oil pressure.... hot is less, because the oil is thinner.... so in your case, the oil was hotter than you normally see, so it got a bit thinner, and the oil pressure dropped some.
I've seen this in the past, we had an 85 van...... if your ran at 55, the engine temp was lower, and the oil pressure was higher than if you were running 80. The temp was up, the oil pressure was down..... not enough to hurt anything... but enough to make a difference on the gauge........
If I remember right, when Gary popped the freeze plug, his oil temp went WAY up...... like pushing 300 up...... now his engine temp gauge didn't reflect this, because there was no water on the gauge sender.......
Personally, I would fix the cooling issues (thermostat and radiator) change the oil, and take it for a drive..... it should be back to what you normally see..... however the engine temp may be lower with a new radiator and thermostat.... and this may make the oil pressure a bit higher......
79jasper
Chickenhawk
Sometimes parts stores will have motorcraft. Just need to check around.
Sent from my SAMSUNG-SM-G890A using Tapatalk
Sent from my SAMSUNG-SM-G890A using Tapatalk
SPR1NK
Full Access Member
Oh that makes sense, didn't think about that, was kinda stuck in worst case scenario mode, thinking there was more that was broke
Black dawg
Registered User
Ford wont have that stat in stock today, but I have a few of them if you need one today.
SPR1NK
Full Access Member
Black dawg, are you in Stevensville/Missoula area?
How much would you want for one?
How much would you want for one?
Black dawg
Registered User
You were at my place, to look at a 6.9 for sale (the one the nozzles fell out of). just north of oles.
You can have this one, if you get me another, whenever you can.
SPR1NK
Full Access Member
Oh, then I guess I know where to go lol
I don't think I'll need to get it today, won't have time to work on it, so I might just see how long it will take the dealer to get it first, cuz I won't have time to work on the truck til this weekend anyway,, but if it will take them a long time to get it then I will let you know and see about getting one from you and just replace it when the dealer gets it in
I don't think I'll need to get it today, won't have time to work on it, so I might just see how long it will take the dealer to get it first, cuz I won't have time to work on the truck til this weekend anyway,, but if it will take them a long time to get it then I will let you know and see about getting one from you and just replace it when the dealer gets it in
Black dawg
Registered User
If it will save you a trip, I can have one delivered here.
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SPR1NK
Full Access Member
18 bucks?
From where?
They just told me 37 at Bitteroot motors a few minutes ago
I gotta be in Missoula every day for class anyway, so I already have to make the trip
From where?
They just told me 37 at Bitteroot motors a few minutes ago
I gotta be in Missoula every day for class anyway, so I already have to make the trip
Black dawg
Registered User
I have a few here, If you want one for 18 just let me know.
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