Nissan Oil Cooler O-Ring Replacement for Frontier Xterra Pathfinder

[@jberryt2946]

What I really appreciated was you put the old o ring next to new o ring and it showed how bad the old one was...thanks for the video the side by side of the o rings really showed the difference. Great job👍

[@ProfessionalPepper]

Thanks! I'm glad I could help.

[@CaboClan]

Thanks for the video same issue as everyone. Like you, i thought it was leaking from the oil filter. I cleaned everything around the oil filter and played the waiting game to see where the oil was coming from, low and behold the leak was coming from the Oil Cooler. I just ordered the O-Ring from Amazon. Thanks Again!

[@ProfessionalPepper]

Once you fix it you will be so relieved. Plus no more damn oil stains under your truck. Good luck. Let me know if you have any questions.

[@alexsgocart]

Thank you for making this video! My 2005 R51 started leaking recently and a some searching around lead me to the "very common" leaking oil cooler gasket. Went down to my local Nissan Dealership and got the gasket for $6.40. Seems like a fairy easy-moderate fix from watching your video. Thanks again!

[@ProfessionalPepper]

alexsgocart your welcome. I appreciate your appreciation!

[@gtfarch9520]

i really appreciates your big help mate, now im 100percent sure the oring is causing the leaked, i will buy and replace the oring asap. and again thank you.

[@ProfessionalPepper]

+GERARD FAJARDO thats awsome! I know you can fix this problem without the awful dealership. Please update me on your progress. Good luck! If you have any questions please ask?

[@avgjoela13]

Everything exactly how you stated. Happily surprised no sludge on mine 07 Pathfinder with 148K. Two thumbs up!!

[@ProfessionalPepper]

Korea Joe glad to hear! You have a smooth kitten

[@RealRyanDeLuca]

Great video and was successful doing this fix on my 2006 Nissan Xterra. Only thing I would add is that for me, it wasn’t necessary to remove the little brass colored oil drain tray thing. Thanks for the great vid!

[@ProfessionalPepper]

Thanks for sharing.

[@xcross8537]

Thank you so much 😊. I ordered new O-ring on my 05 pathfinder.

[@ProfessionalPepper]

you will be soooo happy when you look in your driveway and there is no drip puddle.

[@jessicapiersante2118]

Thanks for this helpful video. I just did the oil change and soon after find out the oil leak, my question is, do I have to drain the new oil in order to replace the cooler O ring? Thanks in advance.

[@ProfessionalPepper]

You are supposed to drain your oil before. However, you absolutely dont have to, but you will get a lot of oil coming out of the oil cooler when you remove it.

[@mb1636]

I dont know how i came here but glad did coz i own a 2007 V6 Frontier. None yet oil leak 203+k miles. In case it will in future then know how to inspect. Great Vid !

[@ProfessionalPepper]

thanks! i bet yours was torqued on right and many of ours were not

[@mb1636]

Hi again ! Well oh well...9 months after im back to ur channel coz my oil cooler is now leaking. Not bad though..12 yrs of use n 222k mileage. I like it that you took off the oil drip runner to make more room. Ill do the same. Thnx n hope all is well !

[@williamsantiago7303]

You might want to put in 2 quarts of transmission fluid in the oil pan to clean the inside of that block. Wow that had alot of sludge and its not a old car. Anyway great video and it helped me pin point my leak, thank you. Thumbs up on the video. 👍

[@ProfessionalPepper]

It was a lot of sludge. That location seems to collect it for some reason.

[@joepascual9632]

Thanks for this! My 2011's leak has gotten worse lately so this fix is on my todo list. Looks like you did this job on the ground, not on a lift, right?

[@ProfessionalPepper]

Yes, however I installed a lift kit on my truck and have larger tires. You could drive it up onto some 2x4s to get some more clearance if you need the space.

[@jjreed1554]

@@ProfessionalPepper I have some gator lifts so will that get the job done without using my trolley jack?

[@ProfessionalPepper]

@@jjreed1554 you should be fine, you can always just drive you vehicle onto some 2x4s to get more clearance.

[@jjreed1554]

@@ProfessionalPepper Thanks for the response.

[@SPharaoh]

Thank you so much. Good things coming your way for the great video here. Certainly helped me big time.

[@ProfessionalPepper]

great to hear!

[@gtfarch9520]

thank for this helpful tip video, i was wondering if this o ring have the same with d40 navara?

[@ProfessionalPepper]

The truck model is the same. d40=Nissan Frontier. They are both the Second Generation Nissan Small Truck series. The engine type is what you should be concerned about. Do you have the 2.5L Gasoline Engine QR25DE, the 2.5L Diesel Engine YD25DD, or the 4.0L Gasoline Engine VQ40DE? My engine uses the 4.0L Gasoline Engine VQ40DE model.

[@noprofileful]

Mine started after the dealer changed the oil. I had purchased 4 oil changes for $99 from them (great deal right?), and originally thought that they didn't tighten the oil filter enough. Because for that price they can't afford spend a lot of time on my truck. But when I wiped around the oil cooler I couldn't see anything and it seemed tight enough. So I had to take off the skid plate (1/8" of oily dirt on top) and keep the truck running and then I could see the slow drip forming from the back side of the oil cooler. Every video that I've watched makes it seem so hard to break-loose the 22mm oil cooler bolt. Mine was literally just slightly more than hand-tight. So I'm thinking that the dealer service tech. loosened the bolt as a way of trying to get more service work from me. Of course I have no proof other than the leak started within a week of the oil change. But this dealer just changed hands and every time I've gone in since then my slimeball senses start tingling.

[@ProfessionalPepper]

Always trust your slimeball sense. Never trust a stealership.... i mean dealership.

[@TonyHickham]

@@ProfessionalPepper i really like my nissan dealer.. would hate to think we got the same deal, but yes literally had the oil change 10 days ago... really hope im wrong. but im glad i can fix this myself (with my awesome neighbor that i pay with beer!) mine's an 05 pathfinder, 165K miles, im happy this is the worst thing im dealing with...

[@ProfessionalPepper]

@@TonyHickham so far. haha. It is a common problem with this engine style, but dealerships will make you pay a significant amount to repair it.

[@TonyHickham]

@@ProfessionalPepper ya.. the quote i got this morning was $290... and the service rep even said, "its a $10 part and $280 in labor."... im like yup, i'll do it. and the way he said that, along with telling me it's not an emergency and a few other things, he made me feel like he was trying to tell me this is somthing i can totally do myself. I mean im sure he's not supposed to suggest that of course, but he wasn't putting it in very hard to crack code... only thing missing was the wink. lol... i'll report back when i finish it.

[@ProfessionalPepper]

Good luck.

[@neticgyt]

Can i do this with a 22 mm short socket or do I need a deep dish 22 mm socket????

[@ProfessionalPepper]

The deep socket is necessary, as it provides space for the threaded shaft to go on the inside of the socket. It also allows for you to have enough clearance for the socket wrench handle to not hit the vehicle's frame while turning it. You can buy a single sized socket peice online or at the auto parts store.

[@davelee6023]

Hello, I have a 2009 Suzuki Equator and it appears to be leaking oil in the same area as in your video, where the oil cooler attaches to the engine block. The oil filter and deflection shield are the same as the Frontier, and since the Suzuki and Frontier have the same chassis, do you think I could apply the same logic to replace the "O" ring?

[@ProfessionalPepper]

Dave Lee yes all power train and engine components are the same. I have a link to the exact gasket in the video description. Let me know how it turns out.

[@davelee6023]

Thanks I will.

[@davelee6023]

Good Morning, I replaced the "O" ring on the oil cooler yesterday and it went relatively smooth, thanks again for your video and quick reply to my question. I picked up a torque ratchet for $20 and I'm very happy I did, because old oil filter was so tight, that when I got it loose, it also loosened the bolt holding the oil cooler on. I had some work done a few months ago and they changed the oil and must have competed to see who could get it on the tightest (lol)!! At least now I know that bolt is on to foot pound specs and the oil filter is snug, not gorilla tight. Anyway, thanks again.

[@ProfessionalPepper]

Dave Lee Awsome! glad to hear you completed the job without too much fuss. I've done several common fixes to the truck, so if you ever run into anything and need help let me know.

[@sktona]

For anyone with this leak, try tightening the 22mm bolt first. Mine came off pretty easy and the gasket looked fine.

[@GNagle26]

I have the 6 speed transmission. The Haynes manual says there is no oil cooler on this. Can anyone confirm? Is there a similar gasket that could need replacing anyway? Also is it a 22mm or 20mm? I think you say 22 at the beginning but 20 at the end! Thanks all

[@TheVideti]

was the oil pressure before low before you changed it?

[@ProfessionalPepper]

_itsvicky_ no it was not

[@TheVideti]

thanks..

[@Sroor90010]

Do these type of oil cooler good or the went bad and mixing coolant with engine oil? I dont know ive seen in my pathfinder r51 2007 4wd which is New to me bought it about a year ago that guy deleted heater cause that brittlr plastic gone bad on passenger side and i bought it from junkyard the whole assembley of heater pipe including pump And Just noticed that he deleted and removed water pipe for oil cooler and he blocked the thread after engine oil cooler filter and plugged passage way near radiator hose omg and he dont remember about this but will these engine oil cooler go bad?

[@ProfessionalPepper]

There is an issue with the frontier, where the transmission oil is cooled in the radiator and it commonly breaks, mixing coolant with transmission fluid. I have not heard of your issue, but you can research your problem at clubfrontier.org and find and answer.

[@Sroor90010]

@@ProfessionalPepper ok friend i know that issue and ive already bypassed radiotor and now iam fine but cause when i bought the car heater was cancelled and Just returned back today and oil cooler was cancelled so i think there is an issue with it so my plan is to add oil cooler Sandwich 😁 once i find small radiator so i can add it instead of engine oil cooler 😉 that i dont know the history of it and air cooled better than water cooled and once it failed you cant start the car have to flush so be safe than Sorry 👍

[@ProfessionalPepper]

Good idea! Good luck!

[@chaldoboy1000]

After o ring replaced so you need to drain the engine oil ??

[@ProfessionalPepper]

chaldoboy1000 you can perform an oil change, but it is not necessary. However, if you are already down there it is a good idea to change out the oil filter and do an oil change.

[@chaldoboy1000]

The Professional Prepper (Prep Know Do) sounds good this was very helpful 👍🏻dealer wants $150 to do this job for me

[@JaimeLopez-ff5ft]

Thanks for the video, Very helpful

[@ProfessionalPepper]

Jaime Lopez your very welcome

[@kristopheryoung9503]

I have a 2007 Nissan Frontier 2.5L that just started leaking from the o-ring you mentioned. My question to you is, did you lubricate the oil cooler gasket prior to installing it or install it dry? Going to be changing mine out today and wanted to make sure before I completed the job. Thank you for the video, I thought the leak was coming from the oil pan gasket.

[@ProfessionalPepper]

Put a little lube on it.

[@kristopheryoung9503]

That's what I thought but wanted to make sure! Thank you!

[@robnsam]

Excellent video! Thank you.

[@chrispybattyone5937]

Thank you great video

[@ProfessionalPepper]

Thank you for watching!

[@gtfarch9520]

My 2007 D40 navara is V6 4.0 VQ40DE Petrol i think same as your frontier, i went to the nissan part service to buy the o ring but instead they requiered me to buy the whole oil cooler assembly. i show them your snapshot of your video with the oring detached. my questioned to them is the oring to frontier is same to my d40 navara. but they didnt answer my question instaed they require me to buy the oil filter assembly.

[@ProfessionalPepper]

+GERARD FAJARDO do not buy the entire oil cooler! Only buy the O-Ring! I have the amazon link to the O-Ring in the description. Buy the O-Ring and have it shipped to you. We have the exact same truck, and the O-Ring is most likely the problem. This is a common problem with our truck. If for some reason the O-Ring is not the problem, then you are only out $7.00 U.S. . If you have any questions let me know. Good luck

[@luisfrias2044]

thanks u explained it well it helped me replace my

[@ProfessionalPepper]

Awesome, glad I could help

[@legotech7]

How often do you have to change that o ring?.......

[@ProfessionalPepper]

legotech7 only if it's leaking. mine failed around 95000 miles

[@jayr4047]

Thanks for the info. 👍

[@ArchangelAlexander]

Does Nissan use standard or metric o rings?

[@ProfessionalPepper]

Metric

[@ArchangelAlexander]

@@ProfessionalPepper thank you so much. Been stressing over it

[@ProfessionalPepper]

if you need to get it online, there is a link in the video description for it.

[@ArchangelAlexander]

@@ProfessionalPepper oh. Thanks, I got it already, i went on a limb and got metric ones

[@mehtinmustafa240]

Waa it loos much oil from the o-ring?

[@ProfessionalPepper]

It was a very slow drip. About 10 drops each night would be under the vehicle in the morning.

[@WillB-lv1xg]

The R50 has the same problem fixed the leak. Now I think it has a bad pcv valve.

[@urmomsfavstonerr5954]

I was doing the same to my 07 Xterra but had some trouble putting the bolt back in and ended up breaking the other side of the cooler were everything connects to. do you happen to know what that part is called and if it's just that small part or a bigger part (problem)?

[@leanneforde3943]

my partner liam "s jeep drop oil n circle drive stuck i want to know i think its leaking!

[@ProfessionalPepper]

Leanne Forde yes

[@jeflores1000]

Thank u ,very helpful video

[@eriks9576]

damn son looks like you have been using conventional oil! shit ton of sludge! greetings from portland oregon

[@ProfessionalPepper]

Synthetic every change from when I've owned it since 2009. It's a 05, but sludge can collect in and around certain parts like the oil cooler.

[@eriks9576]

@@ProfessionalPepper wowzers im bout to do my gasket, thanks for the vid bro! greetings from portland oregon fish on!

[@shimon2476]

You have a serious sludge problem there buddy im postive your oil strainer is close to clogged up.

[@cwmizner]

where is the oil strainer and can it be cleaned?

[@johnturner112]

This is the worst design ever. If the oil filter is stuck it just unscrews the bolt. I've changed mine twice now because the oil change places don't give a crap.

[@polishasparagus7251]

Great video, but holy shit that oil is disgusting.

[@alvaradom11]

Excellent video. Thank you so much !

[@ProfessionalPepper]

My pleasure! I'm glad I could be helpful.