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Guys! there's so much info on here about this notorious tod. but i guess i'm curious because the videos i've seen to listen to the sound are all very persistent with a steady tick. i'm reading up on it because... well, i have it. i've had it for a few k's now. it is getting louder. it stops abruptly, then fades in. and sometimes, it doesn't happen at all, but does usually more and more so now. doesn't tick on the highway. the idle jumps up from 700 to 1200 and back down to 700 over and over. not always. it used to always, but i found a small hose disconnected from the charcoal filter with a mosquito clogging the end of it. removed the mosquito, replugged the hose, and the idle returned to normal. that was about 9k ago. now, it's doing it again, but the hose is still connected. i'm a little baffled. do these sound like TOD symptoms? i've read it might be a small exhaust leak? oh yes, also, it makes a delicate rattling sound from under the hood whenever i'm using lots of gas. for example: climbing a hill at a low rpm. as an after thought, my mechanic told me that this particular tick might not be the tick of death and could be something internal with the engine, in which case, paying to fix the TOD would render futile. although, he did not hear the tick, it's only been described to him as i have to you. i recently replaced the oil i use synthetic 10w-30 and used a little seafoam to see if it might help clean things up. but to no avail. anyways, i'd really appreciate some advice before i fork over the $500 to get the oil pump replaced. thanks dudes!