Laid sheet of AL foil on bottom of oven to collect spills and ran over at 400 and foil melted and adhered to bottom of oven. How do I clean or replace bottom metal surface of oven?

The evaporator tray has a hose on bottom to allow the water to drain and leave the car. When that hose gets clogged the water collects in the tray, overfills it and the excess spills out onto the floor. Go under the car, locate that hose and goose it with a nice long metal coat hanger to free up the clog.

Fuel filter may be clogged, replace. Fuel pump may be failing, replace. Never let your vehicle "run out of gas" as all the residue collected in the bottom of the gas tank, will migrate through the system and create problems.

Check main fuse and relay. I think it's blown, possible ruptured heater core,

Unfortunately there is no simple way to fix this, The original coating is a vitreous ceramic baked on enamel which cannot be repaired easily. There are some companies who sell kits that claim to be able to patch the oven liner but are not very successful. You will either have to put up with it or you can contact your local agent for your oven a price a replacement liner which won't be cheap and is a pain to fit.

If your transmission pan does not have a drain plug - most factory installed pans do not - then you need to put a large collection system in place to catch the transmission fluid for proper disposal. ( pan or bucket - this can get messy) Remove the bolts from the pan leaving a few on one side in place and loosened only so that the fluid spills out over the opposite side of the pan into the collection system. Slowly remove the remaining bolts being careful not to spill the remaining fluid. Might be a good time to put in a drain plug if not already there and the trany filter as well. Clean both mating surfaces and replace gasket and bolts. Be sure to refill with the recommended fluid. I am assuming that you would have the vehicle raised and properly secured (jack stands) before going under the vehicle. Let me know if this helps. Thanks.

SMOKING COMING FROM OIL SPILLED ON THE ENGINE AND MANIFOLD WHEN YOU CHANGED VALVE COVERS.OIL PROBABLY GOT IN PLUGS HOLES FOULING OUT PLUGS. SPRAY PLUGS WITH CARB CLEANER OR BRAKE CLEANER TO CLEAN THEM.DRY THEM. REINSTALL PLUGS BACK IN THE ENGINE.CLEAN OIL OFF ENGINE AND MANIFOLD SO IT WONT SMOKE. CRANK ENGINE SHOULD BE OKAY.

clean out the AC outlet pipe then anything coming in will drain off

You may have a blown heads. Try by replacing the oil pressure sensor located in the rear of the engine. Second clean the throttle body by taking off the hoses. Get the cleaner from the auto parts store. Clean throttle body, air intakes, air filter, new oil filter, and have your feul injectors services. Did you check under the car for oil leaks? Try placing a white sheet under the car to see if you have a bad oil spill. Make sure all harness wires are not shorting out. Alot of wires are placed close to heat sources and could melt them. Yoyu just have to replace the melted section and reroute the wiring........runjoe

The drainage in the wells are blocked with leaves or debris clean drainage holes and that will solve the problem. Good Luck