I just purchaed a 1992 Tempo yesterday, I posted a message about the blown lamp. Well, something more serious--and it WAS disclosed to me at the time of purchase.
At idle, the engine makes a clanking sound. Sounds SORT of like knocking, but it's much louder; you can't hear it over the stereo, but if the stereo is off you can totally hear it. It only does it at idle, the minute you accelerate it's gone. If you put the car in Neutral at idle and give it even just a hair of gas, it ends.
The people who sold the car don't recall what the shop said the issue was called, but that it would cost about $140 or so. I could call them and probably will, but at the risk of sounding racist (I'm totally not) they're oriental (Chinese) and it's hard to understand what they're saying. Besides, I'm not sure if they remember exactly what the issue was.
What would be the LIKELY cause of such a noise? Valve job maybe?
LRH