April '07 Grand Cherokee WK 3.0L CRD OM642. Bought new Oct '08 and now have 61,040 miles.
Washed engine thoroughly (water runs clean for hours), has six (maybe seven) ounces leak dye in oil, have driven 450+ miles.... oil is still appearing but doesn't have any dye in it.
The dye does show up in the turbo intake, oil cap, dip stick.
Does this engine have an internal cavity somewhere (and large enough) that it could actually this long for a leak to work through?
If it's really not leaking... and this is just residual oil. Where the heck is all this residual oil sitting at and how do I clean it off? I pulled the fuel filter yesterday and it's pretty darn shiny down in the V after all the washing.
Here's the long story on how I got to this point:
Have had occasional (small) drips and frequent bad smells for months. In April, the Olathe KS dealership's "express lube" folks wrote it up for "a leaking pinion seal". When I went back to their "main shop", was told... no it's actually a leaking oil sensor.
They replaced the oil sensor. The drips and smells continued to get worse. In May, I went back in and told them about it and said I was concerned that either the Turbo or DPF might have an issue. In response, I was told "they listened to the Turbo and it sounds fine."
I didn't know about the intake hose, swirl motor, etc., stuff then...
Intended to take it to a different dealership in another town, but life got in the way and I hadn't done it yet.
Sept 14th went into Olathe dealership for an oil change and hoping they'd have some idea about the leaking. Instead I got back a total mess. Apparently they overfilled it and put the cap on wrong. When I stopped for fuel, had oil puddles all over the place.
Immediately called the dealership (& took a bunch of photos), they suggested I put some oil in it (whatever kind I could find) and bring it back in the next day. Now I was stuck... none of the other dealerships wanted to get involved in Olathe's mess. So I topped it off and drove back in the morning.
By the time I get back to the dealership (Sept 15th am), I've researched about this engine's turbo intake, swirl motor, and general all around bad reaction to being overfilled with oil. So I insist the dealership do what ever it takes to get this engine clean enough that we'll know right away if any subsequent appearance of oil is a leak or not.
The tried to return the Jeep to me, and I refused because I could still wipe oil off the bottom of the engine block. This went on all day...
... and finally Rod Hill (their service manager) appears, apologizes a lot, and then tries to explain how they don't have the means to wash the engine.
Finally, I give up
and leave with the intentions to either buy a Ford on the way home or go to a different dealership. Trade-In value really sucks with an obvious leak. So I called Jeep customer care.
Naturally they insisted I take it back to the Olathe dealership and have them clean up their mess. Went back, got a rental/loaner. It didn't go well. They dealership told Jeep corp that I left happy, but I still had an engine making puddles in my garage.
Figuring that Jeep corp wasn't going to come up with a solution very quickly... I decided to try another tactic.
Armed with details about the swirl motor, turbo intake, etc., and a collection of photos of the engine (and Merlintec's swirl/intake photos).... I returned to the dealership Friday Sept 24th and talked myself blue in the face
until management finally brought a Sprinter CRD mechanic into the conversation.
That mechanic looked at a photo of the engine bottom and the turbo intake and promptly told the manager (a guy named Gary... Rod Hill was missing) that this engine needs to be removed and have the swirl motor replaced and it's rear main seal replaced.
Finally... Progress. I made an appointment. Took the Jeep back in Monday Sept 20th and got a rental (under Ext Warranty coverage) from the dealer's onsite Enterprise rental. Chevy Silverado this time, they don't rent Chrysler products at this location.
Got a surprise call from Gary Wed AM. I still hadn't been able to to get in touch with Rod Hill since the first time I met him... and the Jeep Customer Care folks hadn't been able to contact him either. Anyway... Gary tells me, "Great news, your Jeeps ready for you to pick up and it didn't have a leak."
Sure enough... they ignored the mechanic
and detoured down the "Your Gonna Have to Prove an Oil Leak with a Leak Dye Test path" before they'd do anything further. They put ONE OUNCE of dye in the engine and drove exactly 10 miles (I wrote down the mileage before and after this visit).
By the time I got back to the office parking lot, I had more oil on the bottom again. So on the way home, I but an UV light and 3 ounce of dye. I checked for any sign of dye at the leak, the oil cap, and the oil dip stick prior and couldn't see anything... so that's when I added the additional three ounces.
The next conversation with Jeep was quite different. They practically begged me to take it anywhere else. They actually set up the next appointment at a different dealership for me.
Friday Oct 1st I took it into another dealership. Still no external sign of dye, but they agreed to order a new intake hose and to replace the PVC valve and CCV hose. We could see the dye in those and a lot of oil is running thru the PCV Valve. They also washed the engine pretty thoroughly. Knowing they would be able to replace parts on a Friday and would likely call me to come get it, I waited around and I was present for most all of this diagnosticing and washing.
So now I'm waiting on the parts to come in. I've got an engine that looks shiny clean on top and in the V, but still has oil appearing on the bottom anytime you drive it.
I spent most of the weekend washing and trying to find this leak. Still no dye in the oil that appears. Have had the dye in for 450+ miles now. Have also added three more ounces of TracerUV thinking the other stuff might not be up to surviving the trip through a diesel engine.
I've uploaded some pics prior to cleaning things up. The intake hose is pretty typical of what others have experienced. The bottom of the engine between the oil pan and the transmission housing's inspection port is where the oil continues to present. The dealerships would have me believe it's flowing down from the drain channels in the V... but it's not showing on the sides of the engine in that path. Which is why I'm still inclined to believe the leaking rear main... despite the lack of dye.
I understand the dealers don't stock parts for these. And I understand the need to do some diagnosis before throwing parts and labor at problem. But the way the service department at "Olathe Dodge Jeep Chrysler" handled this situation really twists my shorts. At least the other dealership seems to be making an effort.
Right now I'd really love to figure out how to either confirm a leak, or clean all of this residual oil.