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Our “new” 1993 Ford Ranger 2.3 L, 1026945 mi has an elusive coolant leak unable to pinpoint where it’s coming from yet with smoking coming up from the EGR tube down where the exhaust manifold is. The smoke is to the back passenger side under the hood. The Heater Core is up and to the right and is a-ok… this is coming up from down under. I am having a tough time finding a diagram of the cooling system. The visible coolant leak onto the ground comes when the car is at operating temperature under the block it seems. The smoke concerns me especially as I do know coolant is flammable. Anyone experience something like this? I don’t know where to begin and finding diagrams of the cooling system is like pulling teeth. Any help appreciated.
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[quote=”aminah” post=157934]In getting to it, if he put an external on, where is that usually mounted? Didn’t see anything that looked like an extra radiator…and second, would an external remove the need for a new block provided it’s confirmed once I get down to it? In other words, would this external fix the problem if the cooler part internally is confirmed bad?[/quote]
The external cooler will have an adapter mounted where the oil filter originally mounted to the engine and the oil filter will mount on top of the adapter.
There will be a set of hoses running to the external cooler (radiator).
Simple way to tell is look at your oil filter .. are there a set of hoses directly below it.In other words, would this external fix the problem if the cooler part internally is confirmed bad?
Ok I’ll state this again, there is no oil cooler on your motor..
I know because I owned a 1985 mustang 4 cylinder and a 1998 Ranger 4 cylinder and they didn’t come with one.
BTW is this an automatic?
If so you may have an issue with the transmission cooler located in the radiator.
Might check your transmission fluid.[quote=”aminah” post=157936]I have to get down into it to see what’s happening there, so my question right now is, is there coolant in the block that serves as an oil cooler? Any cut-outs of the internal workings of the block?[/quote]
The basic design of pretty much all engine blocks have a water jacket that runs between each cylinder and sometimes heads and intake manifolds which keeps the engine temperature stable at the set point of the thermostat.Under normal operating conditions…
Engine oil needs to be at least 220 degrees F to burn off all the deposits and accumulated water vapor.
The traditional approach is to try to hold oil temperatures between 230 and 260 degrees.How is the oil distributed?. The leak is almost just under where the oil filter is going in. It’s tight with view hard and it is night now so can’t really get a good re-look at it until morning, but that’s where I have the drip…oil w/ coolant.
How is the oil distributed?.
The leak is almost just under where the oil filter is going in. It’s tight with view hard and it is night now so can’t really get a good re-look at it until morning, but that’s where I have the drip…oil w/ coolant.
Could be several possibilities …
For oil:
Bad oil filter gasket
Faulty oil sending unit
Leaking gasketFor coolant:
Hose
Freeze out plugNeed to see what is going on before anything else
Thank you, ok there’s no mayonnaise in the oil cap. The oil case, stick and visual inspection into it all looked clean, save some darkening of the oil, but not bad. Morning will come soon enough for a renewed look at it. Thank you again.
Duplication resulted in 2 leak areas, and one oil. I now believe it’s two separate issues, oil and coolant with the coolant puddling and mixing into the oil. New duplication has just oil and two coolant ones when heated near the water pump. How many freeze plugs are there on a 2.3L? Diagram? Hoping I don’t have to pull the whole engine out to reach them. Anything guidance in the the fact it is when hot they both drip?
There are freeze out plugs in both the block and head
Appears to be 4 for the block, one for the head and threaded plugs
” Anything guidance in the the fact it is when hot they both drip? ”
Expansion and/or pressure due to heat for oil leaks
Though most every freeze plug I have ever seen will constantly leak coolant to some degree due to the fact they are located in the water jacket and do not have anything in common with oil flow.
Where exactly around the water pump are you seeing leakage.. is it coming from the weep hole?
This is common, indicating a failing water pump.Quick question to confirm I have properly identified a part. The oil pressure sensor is in the oil pan? I have an oil encrusted hexnut with a screw coming out with wires electrical taped around the screw end sticking out in the side of the oil pan.
I think I need to get the connector and replacement sensor and wire it properly?
I have no idea what it is, the oil pressure sensor is below the EGR from what I am finding, not in the oil pan….
You really need to start taking some pics and posting here..
Kinda tough to explain what your looking at with out ever seeing what it is your looking at.Yes photo’s would be helpful, my son’s not home to take a pic of it and I don’t have a cellphone. I think you nailed it tho. THANK YOU!
What is mounted in the side of the oil pan is the oil level sensor.
What is mounted under the EGR valve towards the rear of the engine is the oil pressure sensor.
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