I just had my 08 go into the shop to have the Engine Oil Cooler replaced and it's on National backorder. My Jeep has a whopping 1500 miles on it. Has anyone else had problems with this? The Service Manager said that this part was in it's 4th generation and there were specific instructions to NOT cannibalize from new vehicles one the lot.....
Engine Oil Cooler
RosevilleSteve
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I just had my 08 go into the shop to have the Engine Oil Cooler replaced and it's on National backorder. My Jeep has a whopping 1500 miles on it. Has anyone else had problems with this? The Service Manager said that this part was in it's 4th generation and there were specific instructions to NOT cannibalize from new vehicles one the lot.....
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I was very temped to put one on my Pat as it didn't come with it, and in theory it seems like a nice mod....cooler running engine never hurts.
But after seeing how it works, I have my doubts that it does much, if anything at all to cool the engine or oil. It's still has to reach the same temp for the thermostat to open.
In the end I figured it would probably give me more problems then it helps prevent....more hoses to leak coolant, another location for coolent to get into the engine......
But after seeing how it works, I have my doubts that it does much, if anything at all to cool the engine or oil. It's still has to reach the same temp for the thermostat to open.
In the end I figured it would probably give me more problems then it helps prevent....more hoses to leak coolant, another location for coolent to get into the engine......
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Question: How does one know when their oil cooler is defective? I have one that came with the trailer tow package and haven't got a clue to how it works or how it could damage my engine. Please explain. Thanks
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I knew mine was defective by the oil stain on my driveway. It was a good thing my driveway has an incline because all the oil was collecting in the skid plate..... I took it in, they cleaned it up, did a dye test and found the leak on the cooler.... Now I'm waiting...
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I gotta tell ya, I have one, and I think my Jeep runs really hot, so I can't see what it is actually doing if anything at all.
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Oil will get much hotter than the engine (without an oil cooler), since it is in contact with very hot parts of the engine, or in the oilpan, which has very little cooling surface area compared to the amount of oil in it, + with a skidplate reducing cool air around it.
A side benefit of this cooler design is that the coolant will warm up the oil to operating temps from a cold start faster than if there was no cooler (since only a small amount of the oil is in contact with the hot parts compared to the cold reservoir of oil in the pan, the oil temp lags behind the engine coolant temps, at least when first starting up)
A side benefit of this cooler design is that the coolant will warm up the oil to operating temps from a cold start faster than if there was no cooler (since only a small amount of the oil is in contact with the hot parts compared to the cold reservoir of oil in the pan, the oil temp lags behind the engine coolant temps, at least when first starting up)
I added mine own and my temp hasn't changed noticeably. I really think that it's more to prevent your oil from over heating under load than to actually make it run cooler. With the Winters down around 20 below I haven't noticed that it warmed up any faster either, maybe a little, but it's marginal.
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Hmm, I'm a bit of a freak for gauges, might want to add that my list of gauges to add. I've always felt that the Pat was dangerously short on instrumentation.
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But you are still limited to coolant temp for the thermostat to open and cool things off. It might allow the engine and oil to cool off a little faster as it adds extra cooling surface....?
But I don't see how it would make the oil cooler while still relying on the thermostat to open for it to work?
Someone with a scan guage might be able to check the different temps....
If your oil starts to run too hot while under load it adds extra cooling capacity
I would't add too many gauges just get a DashHawk (URL is .COM forum filter made me remove it). It will read you all the data from the OBDII connection. You can keep tabs on your engine with it
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Jeeps should all come with gauges and not idiot lights.
I like an ammeter, oil pressure, temperature, and vacuum gauge.
A vacuum gauge is the poor man's Scangauge or Dashhawk for mileage.
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As do I. Unfortunately the Tow Group got dropped from the list of factory options for 2009 unless you get the FDII. You can still get everything as an accessory though, albeit for more cost (parts and labor at that point). I'm going to get a 2" hidden hitch and install it myself and have the dealer put on the oil cooler and wiring harness.
Regards,
NP
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The mopar wiring harness that runs straight into the fuse box does not mate well with 2" HH, Drawtite, Reese......
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Hmm, I thought about that. Nothing a zip tie couldn't fix though I guess. I don't mind that much if it doesn't have a neat little place to rest at.
NP
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Oil temperature typically runs at about 350 degrees. Engine coolant runs at about 210 degrees. Running engine oil at any temperature lower than the boiling point of water is dangerous because it will not boil out any condensation in the crankcase and oil pan which inevitable happens almost every cold night. Obviously running the oil 140 degrees cooler than 350 will lead to longer oil life. In constant off-road situations, (as well as heavy stop and go traffic), the constant torquing of the engine tends to blow alot of oil past the piston rings into the combustion chamber, hence buring oil while off road. Oil coolers help prevent that too.
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