Replace broken section of gas line with new one kits are made for this kind of application go to your local parts store buy the kit and read it's recommended instructions.
Transmission no good need to be replaces.
Fittings for 134 freon
If u have water in your oil pan u need to replce it.
Heater lines to rear are leaking and I need temporary, emergency bypass.
You will need to remove the retaining ring at the top of your 1998 Chevy Lumina ignition switch. Slide the ignition switch out. Remove the wiring harness.
Could be several reasons, need to know aprox where it is leaking from.
These are HIGH pressure cooling lines; make sure you replace them with the SAME quality lines or they will rupture and leave you stranded. You often need a flare nut wrench set to remove them as they can be very tight. If they are just barely seeping I would not replace them ,but if in fact they are LEAKING then you need to update them.
need to bleed the lines
have system pressure tested to observe leak
Could be a gasket, an o-ring or a seal. Need more info as to where it is leaking.
There are a variety of reasons for an engine misfire in a Crown Victoria. You may need to replace the spark plugs and wires. Other causes include leaking vacuum hoses and leaking fuel lines.
On a 1999 3.1L v6 we get ~24mpg, www.fueleconomy.gov has listings if you need more accurate data or have a different engine.