Toyota Highlander Questions

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Need to know lug nut torque?
It happens most days, and doesn't "gurgle" for my entire ride. Ie, it will stop after a period of time and 'not always'. I haven't noticed it more/less based on temperature (ie happens more on HOT days or COLD days), and also-I can fiddle with turning on the heat/air/defrost and it will go away but it's not "ONE" thing that makes it stop.

Is it a bubble in the compressor, is it going to get worse over a cold Chicago winter, will it make my heat stop working? Is it something mechanical, something dangerous or a quick/easy/cheap fix?
My DTR headlamps are fine, but no amber lights in front or running lights in rear when selector switch is either in auto, on, or parking light settings. The brake lights illuminate just fine when brake pedal is depressed. Any help?
Ive checked the fuses, had to push on the override button to get the car home.
Long story short, I recently moved from CA to WA and I had rented a truck and trailer to haul my highlander. When it was time to load my car I had to drive it onto the tailer which by the way was way too high up of a ramp. Needless to say my vehicle got stuck and pieces of my undercarriage ripped off. The heat shield looked like a crushed aluminum can, that bar that runs down the center is dented in, my tail pipe is also dented and I believe my caddy conv. may have also sustained damage. The car drives but the fans aren't running and the engine is making a loud noise when started. Budget Rental has done nothing to repair my vehicle even though I purchased the extra insurance. Any advise will do. Thank you.
My Highlander is the 6 cylander AWD Limited version. Car has 60K miles and has been well maintained. Tires are new.

my tail light isnt working on in the parking light position.

when i brake, the regular brake light works but my (night) parking light isnt working and i wont be able to drive during the night.

first i notice two of bulb was blown, so i replace the two. now the brake light works but not the parking light. when i turn my switch to turn the headlight/parking light on it pops the 10 amp fuse.

i replace it and it popped again. i took out all the light bulb and put a new fuse and it pop again when i turn on the headlight.

is there short?

i just recently replace my headlight also, will that effect my tailight?
93500 miles. Takes about 500 ml of oil every 150 miles. Replace rear rubber oil line. Worked on variable valve timing.
The check engine light came on in Dec 2012. Diagnostic code showed catalytic convertor malfunction:P0420, P0441, P0455. We disconnected the battery to clear the light, but it came back on. My mechanic can't seem to commit that replacing the convertor is the solution. What else could cause the light to come on and these codes to show? I have changed my gas cap on someone's advice but the light is still on. The car runs fine, but needs to pass inspection soon.
The dealer said it was oil around the plugs, they changed the valve cover gasket and plugs with no improvement. I have tried different coils on that cylinder with no change, When checking the coil with an in line spark checker, and the engine running, the missfire coincides with the indication of no spark from that coil. Changing the coil makes no difference, have also changed the plug on that cylinder again. The engine has over 200,000 miles but still has excellent compression, although it is using some oil now. I have also changed the injectors with no effect. Does anyone have any idea what it could be, it would seem the only other components that would have any influence are the crank sensor and the computer. The codes that come up are po300, po301, poo420, po430.
Thanks, DR.
I had a tune up on my 2006 Toyota Highlander LE 2wd at about 120,000 miles. It has been kept up to date on oil changes with synthetic oil and has been a great vehicle with no real problems. Immediately after the tune up (with the iridium plugs), my gas mileage was about 18.4 mpg (and remained there after 4 tanks of gas) vs. the usual 20.1 MG I averaged before. The car is running smoothly with no other problems. The oil is OK and no overheating, etc. Nothing else was changed. The Speedee where they did the tune up claims that all the seals, vacuum hoses, etc. are intact. There is no oil or other fluid leaking. Any ideas? Thanks!
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