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Dear TWilson,
Good p.m. Volvo 940 Rotors are not supposed to be turned. If they are warped or scored, they must be replaced. A turned rotor warps. I suspect a previous owner had the rotors turned, which is why they warmped.
Replace the rotors and pads, as suggested in the previous post, and things should be normal.
If you're leaking oil underneath the car there are a couple of possibilities.
(a) the oil pan bolts could be loose. To tighten them, you will need to remove the aluminum bracket at the front of the pan. It is held on by four bolts. Remove them and remove the bracket. Clean the bracket with brake cleaner.
(b) to tighten the pan bolts, turn them to snug, using a criss-cross pattern (as you would head bolts), making two or three passes. This compresses the gasket evenly. Once you have them snug, go 1/8" turn further and stop there.
Oil pressure resulting from the plugged "flame trapped" likely has displaced the rear main seal, allowing oil to leak. If the seal is only slightly displaced, it won't leak a huge amount of oil, perhaps a tablespoon or so, once the car has been parked.
Is your bulb failure light on? It could be that the ground wire has come loose. Since this is a wagon, the rear light clusters - accessible through the panels on either side of the hatch - are grounded to the studs, that hold the cluster to the car. Check to see that those connections are tight. Check also to see if there is power at the lights. Check the relevant fuse. The fuses are located behind the front center console's ashtray, which you remove by pressing down on the bar, which is just in front of the shift lever.
Hope this helps.
Yours faithfully,
spook
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