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Cars and trucks

2000 Ford Expedition oil pressure

Mauricio1976
hace 6 años
hace 6 años
How about, I have an expedition 2000 engine 5.4 to which it was made half adjustment, everything was fine but after about 3 weeks the oil pressure began to fall in the morning, once it reaches the ideal temperature everything goes back to work As if nothing else, the oil switch has already been changed (that is, the one next to the filter) has already checked the pressure and everything normal, this is only done when the engine is cold, even if I do the oil change He stops doing it, but after an average of 50 miles the problem returns, thank you in advance for your help
Mauricio1976
hace 6 años

I put oil 10 -40 castrol

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Forzos
Forzos
620
hace 6 años
hace 6 años
Hi, what is "half adjustment"? What oil are you using and what weather is the truck in? (brand and density)
Mauricio1976
hace 6 años

Change d rings, pumps, gaskets, guides, metals, pistons, seals and seals, I am in Los Angeles California where we are average 70 to 80 fahrenheit, the oil I put the high mileage, the thickest there was

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Mauricio1976
hace 6 años

I put castrol oil 10 -40 for vehicles with high mileage which is the one that normally put

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620
hace 6 años

The oil is perfect. What pumps were changed, the oil? Sounds like there is an obstruction in the oil veins. When it is cold, the density is higher, but when it warms up a little, the pressure increases and the viscosity drops. The same goes for the oil, being new. Was the filter changed when the oil was changed? What compression does the truck have?

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Mauricio1976
hace 6 años

Oil pump, water and every oil change I change the compression filter I need to check well with my mechanic who was the one who helped me check and tells me that it is fine, thank you very much for the prompt response

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Mauricio1976
hace 6 años

Is it a good idea to put a liquid that cleans the engine? Or can it get worse?

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620
hace 6 años

Sorry, I thought I understood the last message. Is the compression ok? The values as soon as they are ?. (It is important to know their value individually.)
Not bad, I would only recommend Liqui Moly Engine Flush, or one of the Liqui Moly line, after using it, the oil and filter must be changed again. However, I reiterate, the pressure drop is due to obstruction in some line. I discard the pump as it tells me that it is new (so I also rule out the sucker (the one that sends the oil from the crankcase to the top).

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Forzos
Forzos
620
hace 6 años

Use the product, use it a little to decontaminate and act correctly (Read the instructions in the same way), change the oil and tell me if it is resolved, likewise, tell me the numerical values that the compression gives

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