I have a 2017 Maxima SL with about 8000 miles on the clock. Both mufflers have accumulated enough water to fill the bottoms.......Visible when you hit the bottom of the mufflers as a splash inside the exhaust pipes.
There are NO weep holes in the mufflers...........is this normal?

Thanks in advance

 

No. Should be weep holes. Let dealer advise. He'll probably unplug holes or re-drill new ones. Easy fix. All that water is accumulating from short drives, or someone is playing a trick on you, or you've driven backwards through high water. Which one of these is the most likely scenario? Take that baby on a nice long trip and boil that water outa there.

 

The new gen Maxima mufflers are heavy duty and "deep". Exhaust vapour will accumulate there. Floor it a few times and it will blow out. Watch it in your review mirror.

 

Thanks...............It seemed odd there weren't holes in either muffler and the amount of water fills the bottom of the mufflers on both sides.
I have, in fact, just returned from a long trip(400 miles)and it hadn't rained in our area for about 14 days........

I guess it's time to visit the dealer.

 

Condensation inside the muffler is normal, especially if you live in a highly humid or rainy environment; and as stated, lot of short trips don't fully burn off what's inside. "Splashing" around in side the muffler could be a couple things, washing the car can get water inside of course, parking down hill in a rough rain, can have some water intrusion. Bottom line, a long drive will burn all of that off.

The only time I've ever heard of someone drilling holes into a muffler, is to get a louder sound, poor man's performance exhaust. I'd tread lightly when mentioning that at the dealership, they might snicker a little offensively.

 

Madmax07SL
None of the conditions you mentioned except the short trips occurred .
I guess as long as the vehicle is under warranty, it will go back to the dealer.
I think there should be weep holes to drain the condensation.......

 

What you are saying is that you came off of a 400 mile trip and there is still water inside the muffler???

 

That's the thing, most stock mufflers don't have weep holes, at least I'm pretty certain. Some after market may have them, and of course a lot stuff online discussing people putting them in themselves. But in all reality, if bone stock it doesn't have weep holes, there is no warrantee claim. I'd be curious to hear the outcome of this. Of course I could be wrong, just brainstorming with the thread.

 

That's right! Round trip to Washington,DC almost 380 miles and there is still water in mufflers.............I even pushed it to 90 mph to see if it would blow out the back.......no luck

 

My wife's 2014 Malibu LTZ has weep holes in rear of mufflers...and they weep on the garage floor from a lot of short trips. Her previous Grand AM GT and Honda Accord also had the weep holes. GM says weep holes extend muffler life because mufflers usually corrode from the inside.

 

Pushing the vehicle to 90 will do nothing. You need to FLOOR IT as in BLOW IT OUT say from 30 mph.


This gen MAX does have EXCESSIVE moisture coming out of the motor for whatever reason. I too was concerned I also smell antifreeze from time to time but my level does not go down. I dunno. Characteristic of the vehicle .... as dealers like to say.


OK, I didn't want to enter a pissing match but OEM stock mufflers DO NOT have "weeping holes". Never had. Not worth discussing.


When I installed by rear "trailer" hitch I had the mufflers off and in my hand. They are stainless steel (not polished). They are very heavy and every bit the quality of my SS Magnaflows that I installed on my 2015 Mustang. The OEM Ford mufflers where light weight junk in comparison to the Max. If you have nothing to do, go see the Dealer. However, they will do nothing because there is nothing to be done.

 

I've got appointment Monday at dealer. I told them about the lack of weep holes and did not get a comment either way...............I will let everyone know what the "official" stand on holes is at that point.
I had the antifreeze aroma also.......That will be next weeks thread.......

 

^^ This.

 

Are we confusing the mufflers for the tail pipes?

 

Could be!.....What are the units in the exhaust system closest to the rear of the vehicles, mufflers or resonators?
Whatever they are,,,,that's what does not have weep holes and is filling with condensation.

 

Mufflers are closest to the rear. Resonators. if a car has them, are located between the catalytic converters and the mufflers. They are designed to "resonate", that is change the loudness and or frequency of ignition pulses (noise). Some folks like to have loud exhausts so they delete the mufflers and run the exhaust just through the resonators.

In my recent memory every car I have ever owned has had weep holes in the mufflers. Nissan must omit them for some reason. If a car has moisture weep holes they are usually readily detectable if you poke your head down there and look. If weep holes you will see distinct dark corrosion/stains on the bottom of each muffler. The stains are usually contained to a small area, maybe 5" or so in diameter. The holes are commonly at a point the OEM thinks is the best point to drain off moisture accumulation from short drives, especially during the coldest months.

I gotta laugh 'cause how many of us have a lift to stare at their mufflers. Heck, we all may be running around with 15 gallon water jugs for mufflers.

 

What was the outcome of this H20 problem?

 

They said it was "NORMAL".............WTF

 

2017 Max. I spoke with my brother (30 yr. ASE Certification) about your problem. He said he has seen only a few autos come in with significant amounts of water in the muffler/s. He said it was usually due to plugged weep holes in the front lower edges of the mufflers. He did say that most of these were GM's, who definitely have weep holes. Others he's seen that come in with water in the mufflers were due to customers spraying water directly into the exhaust outlets in order to "clean the tips" (not a good idea).

Whether GM or Nissan, he said if you will drill a 1/8" hole in each of the front, lowest edge of each muffler that will easily purge the water. To help purge the water faster he said you could start the engine cold while you have a buddy temporarily hold a shop rag in each exhaust outlet, while you rev the engine (not too much). He said the water should shoot out of those holes. That's what he does anyway. Makes his customers happy and he says there have been no returns for the same sloshing problem. He did mention that it was curious that you would still have so much water after a 450 mile run, unless that was on a subzero day. Ice takes longer to evaporate.

 

Going back to dealer next week ........lets see if there is still a problem.........let them drill holes, I would not want to void the warranty

 

I'd drill the holes and let the water get out unless you are in the car for the short term. Otherwise you will be replacing the mufflers before long. Weep holes in mufflers are not uncommon and won't hurt a thing. try 1/8 of an inch bit.