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2018 RTL-E White/Tan
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Discussion Starter · #1 · (Edited)
I purchased my 2012 Ridgeline new from Dobbs Honda on Mendenhall (Memphis TN), right from the start I noticed an occasional whiff of something burning when I walked past the truck after driving it. I didn't think it was anything to be concerned about, just 'new car smell'.

Then I started noticing some dark brown oil drips in my garage, none of my previous automobiles leaked and only my truck was parked in that spot, so it had to be coming from the Ridgeline. It was a very minor drip, never affecting the oil level, but annoying and not acceptable for a new vehicle.

After a few months, I took the Ridgeline to Dobbs Honda (using a vacation day and driving 60-miles each way) to have it checked out. After an hour, the service advisor I was working with said the leak was caused by oil spilled during my last oil change. I told him the problem started before my first oil change, but he blew me off. I did not receive any paperwork to document the incident.

Fast forward two years and the leak has gotten a bit bigger, still less than 1/2-quart between oil changes, but the drips in the garage have started to add up and the smell of burning oil has become persistent. I recently took my RL to my local mechanic for an oil change (25k miles on the odometer) and my mechanic tells me he thinks I may have a rear main seal leak and possibly an additional leak since the oil and trans case were covered in oil.

I made some photos and immediately scheduled an appointment with my Honda dealership, which was recently added to the AutoNation group so it's now AutoNation Honda Mendenhall. I showed Honda Service Advisor Larry Davenport the photos on my phone showing oil all over the bottom of the engine and trans and told me that was not normal or acceptable and that they would find and correct the problem. He also asked me to email the photos to him so he could keep them on file.

The Autonation mechanic suspected the leak might be as simple as a bad seal on the crank position sensor, so they replaced the seal and meticulously cleaned the engine and trans and asked that I check it in a few days and let them know if it was still leaking.

Unfortunately, the leak was not solved by replacing the crank position sensor seal, so I brought my Ridgeline back and I was provided with a loaner vehicle (Enterprise rental, I opted for a 2014 Nissan Frontier). The mechanic was prepared to dive in and replace the rear main seal when he came across a Service Notice for sealing the engine block main bearing cap side bolts. They removed, cleaned and sealed the bolt that seemed to be the source of the leak, oil was running down from the bolt, along the flange at the bottom of the bolt and down between the engine and trans. As per the service bulletin, the bolt was reinstalled using Hondabond HT Silicone Gasket and left to set for 24-hours before the engine was restarted. They drove the truck and are hopeful the leak has been corrected. I drove the 60-miles home and so far, everything looks good. Fingers crossed.

I really appreciate Larry Davenport's taking ownership of the issue, seeing that the problem was fixed and keeping me informed throughout the process.


PS: the Nissan Frontier was peppy, but had a much smaller interior and rode more like a truck. It also got really crappy gas mileage, I usually get 18-19MPG with my RL in my daily driving.
 

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Discussion Starter · #4 ·
There are 8 cap bolts, 4 on each side of the block. Thankfully, only one of mine on the back side was leaking.

Garage floor


View from rear looking at back of transmission


View from front
 

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2018 RTL-E White/Tan
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Discussion Starter · #7 · (Edited)

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Discussion Starter · #11 ·
UPDATE - It's been three months and thousands of miles since the bearing cap bolt was sealed and I am happy to report that the engine is still squeaky clean and oil free.
 
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Discussion Starter · #18 ·
Update

Well, it's been over 9-months and many thousands of miles and I am pleased to confirm that the leak has not returned. Yeah! (especially since I'm now out of warranty)



 

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Discussion Starter · #20 ·
^^^Thanks! About 34k, my daily commute is only about 6-miles :)^^^
 

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Discussion Starter · #46 ·
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