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I could smell the exhaust/carbon smell after every acceleration, when I had 4 adults and start uphill the smell was more like burnt oil. Only time I felt dizzy was going thru the passes between Yuma and San Diego on I-8, just opened the windows and made sure climate control was set on outside...

By far go with the Palisade. I had a hard time saying goodbye to Ford but I had enough with exhaust filled cabin every time I accelerated my 2018 EX

I can see that the other plugs on my engine HP3, HP1, and HP5 have o-rings on them but not this HP4

Thanks for the sound advice JAPeterson, I will do just that.

Thanks 96xj, I thought as much, compared to other plugs on this engine, I don’t see evidence of a seal or o-ring, going to fix it myself, surprised I didn’t get any glow here after the dye, it bothers me because when i pull it into the my garage you can smell oil.

Yes, plug above, I put dye in the oil, drive 700 miles and nothing glowing around the plug or anywhere, I could try dye in the coolant next

Sorry, I should be more clear, the pipe plug above the connector, Ford says not an active leak so nothing they will do, but I can see the stain

Does anyone know what this plug is for? or torque specs for it. I have 2018 Explorer 3.5L (non-turbo), its behind the alternator next to the water pump weep hole. Seems like mine is leaking. Ford dealer as well as Ford customer service says its ok and not a problem, but i wipe it off and it just...

I’ve also never gotten out of a dealer in under 4 hours, I think Peter is a Ford employee

Nope, looks like it stays exactly the same. Oil leakage looks to be minimal, 20-30mLs maybe

Sometimes I can hear the radiator louvers slam shut, kind of a rattle.

Ours has done this since new and the dealer says its belt noise. But that whistle sure sounds like a vacuum leak to me. It has not gotten worse or better.

I tried to no avail several times.

Dealer says its road grime (?)

I've got 15k miles on it now and still leaks oil and exhaust smell. Dealer says exhaust smell is known issue with no fix. The persistent oil leak seems to come from between the head and block, see photos, wet behind the alternator and oil seems to burn off just under the exhaust manifold.

I have had the exhaust smell since buying my 2018 EX in Nov.2018, I've also been to the dealer many times. They have test driven it with me and confirm the exhaust smell while accelerating and they(Dealer) just tell me its a known issue with no fix. I try not to accelerate to hard. I thought I...

Exhaust smell unbearable. 2018 3.5L Limited Explorer, Do I have missing bolts? How many should I have per manifold? Sorry if a posted this twice.

Sorry, Heres the other photo

Update: Still have the exhaust smell in the cabin, but just exhaust smell after hard accel, 4000+rpm, and after accel to speed and let off the pedal. No burning oil smell thou. I checked the exhaust manifolds for leaks, but found what seems like missing bolts. See photos. How many bolts/studs...

I drained about 3/4 quart out to get normal dip stick reading.

If anyone is still looking for info on exhaust smell in cabin, I have a 2018 3.5L Limited Explorer that developed the smell in the cabin on hard acceleration after the dealer did some engine repairs. I found the oil level was too high, when I lowered the oil level to normal, the smell went away...

Dip stick

After the front engine cover leak was fixed, they pressure washed the engine compartment, looks new. But now I have exhaust smell on hard acceleration. My 2018 already came with the recirc software update and I looked all over the underside and firewall so see if some seal or tape was missing or...

When I checked the oil filter for leaks, I saw 2 drips coming of the bottom of the engine, traced it up the back side to the front engine cover. Dealer had to replace the front cover gasket compound. Seemed to be leaking at the head and block joint. I've seen other postings with same photos...

Finally getting around to some updates. Oil started leaking from the oil filter adapter within 2 days of changing the gasket. Dealer replaced the entire oil filter adapter, no leaks. They think it was warped.

Oil filter adapter gasket covered by the warranty. The gasket was half folded inside the adapter not sealing a thing. Regarding QC a joke - I just watched a dozen video posts of the guys partying or stoned and dancing on the assembly line, Ford doesn’t care? Hope nothing else goes wrong.

Toyota next time. My wife also insisted on the Explorer so, perfectly understand “happy wife-happy life “.

Yes, very disappointed- my first New Ford - always Chevy before. Especially disappointing since we pay these ridiculous high prices, QC should be impeccable.

just bought my 2018 Explorer Limited with 3.5L standard in Dec.’18, It was manufacturer in July ‘18. I’m finding a lot of missing/incorrect assembly, is anyone else finding this too? Here’s 2 examples, missing bolt for drivers side headlight assembly, and oil leaking from bolts atop the oil filter.