Burning Smell through sunroof

[Matrixman955]

Hey all,

Anyone ever experience a burning smell when driving with the sun roof open? For reference, the smell is typically strongest when just starting the truck and immediately opening the sunroof while moving. I went offroad and in a little bit of mud about a month or two ago. That's also around the same time I got my oil changed and a leaky transfer case addressed, but like I said thats was at least a month ago and the smell is still there. I have since washed underneath my truck and that may have helped a little (maybe just in my mind). The smell is also not coming through the vents, just the sunroof. Also it does not appear to have anything to do with the heater/AC.

My truck has just under 200k miles on it with no engine knocking, no smoke on startup or anything to indicate engine problems. Oil rountinely changed.

Stumped...maybe exhaust seals or gaskets? Thought maybe excess grease from the dealership fixing my transfer case, but I would have figured it would have burned off in a month. Running out of ideas...

 

[Stuck CAPS]

Could you possibly give a reference to what it may smell like?

 

[BlackWorksInc]

Do you get the smell if you have the windows down? and what does it smell like?

 

[Matrixman955]

Could you possibly give a reference to what it may smell like?

Somewhat exhaust smell, somewhat burned rubber smell.

 

[Matrixman955]

Do you get the smell if you have the windows down? and what does it smell like?

That's the weird thing. If I close the sunroof and drive with just the windows down, you would never know. I'm prone to say a burnt rubber smell.

 

[Stuck CAPS]

Somewhat exhaust smell, somewhat burned rubber smell.

Could be your exhaust,
All jokes aside, could something have gotten into your exhaust and is now burning up in there?

 

[Matrixman955]

Could be your exhaust,
All jokes aside, could something have gotten into your exhaust and is now burning up in there?

Lol, yeah definitely not the same smell as when I put the rear window down and floor it (as that seems more like rotten eggs/sulfer).

Idk, as part of fixing the transfer case maybe the dealership has to drop the exhaust and possibly left something up there when putting it back on...

I also park outside so I guess maybe some animal could have crawled up there...I'll smell the exhaust smell coming out of the tail pipe tmrw to see if it smells weird there too.

 

[Stuck CAPS]

Lol, yeah definitely not the same smell as when I put the rear window down and floor it (as that seems more like rotten eggs/sulfer).

Idk, as part of fixing the transfer case maybe the dealership has to drop the exhaust and possibly left something up there when putting it back on...

I also park outside so I guess maybe some animal could have crawled up there...I'll smell the exhaust smell coming out of the tail pipe tmrw to see if it smells weird there too.

Don't inhale too much, now!

 

[oljedi11950]

Any recent lube jobs, as in blow by on pipes maybe ?

 

[Matrixman955]

Don't inhale too much, now!

:faint2:

 

[Matrixman955]

Any recent lube jobs, as in blow by on pipes maybe ?

No, and I read that a symptom of blow by is the dipstick popping out which is not happening and the truck still feels like its making good power...

 

[oljedi11950]

No I was referring the lubrication of driveshaft & all zerks too much throwing all over !

 

[Matrixman955]

No I was referring the lubrication of driveshaft & all zerks too much throwing all over !

Hmmm not sure...I'll check that tomorrow.

As part of reassembling the transfer case once they replaced the seal, they used a good bit of grease to seal the case so maybe just too much and it keeps hitting the exhaust...anywho I'll make sure to look in the morning, thx for the idea.

 

[oljedi11950]

Yeeeeup , did mine last wk & over did it a bit so it's a little burned smell exhaust thing !