Hello- 2000 Land Cruiser. Took it on a camping trip and after going over a 12,000 FT pass and then up another forest road, started smelling a very noticeable gas / exhaust smell. We pulled into our site and after turning off the car, it continued for at least another 15 minutes, could smell in 20 feet away as we set up our tent. I lifted up the hood and heard a crackling / sizzling sound coming from the right side of engine. See photo . Pretty sure it was this exact spot. No clue where to start, if the sound I heard is related, etc etc - ANY help would be much appreciated.