How much will it cost to replace a engine on a 2001 Durango

DO IT YOUR SELF COST AROUND $20.00

It is a V-8 so 8 spark plugs.

What leads you to think your timing chain needs to be replaced? In the 4.7 motor, the timing chain is designed to last the life of the engine, or at least 150K.

You'd have to replace the transmission as well if you want to run that particular engine. The 4.7L engine is a "mod" motor and the 5.9L is the good old cast iron V-8 design.

this is either a sticking fan relay or the sensor is in the thermostat housing, try the relay 1st.

there are 2 short hoses under the vehicle below drivers seat...see if they are cracked or broken.....

Your looking for the PCM? The computer module in the Durango that controls everything on the durango? If so, then the PCM is made for each Durango specifically. You cannot buy a used one or from a salvage yard. Each PCM is programmed with the VIN# from that Durango. So, any other PCM will not work. You have to go to a dealer and have them get a generic PCM (or autozone $240 if you trust them?) and it will cost with installation and reprogramming? $450.

Time to replace the fuel filter and fuel pump sock.

If you havent already, leave the radiator cap off of your radiator while you start the vehicle. Be sure the engine is cold, you could get hurt if not because the coolant will build up pressure. If the cap is off, no pressure will build. Wait a while for the vehicle to heat up, look in the opening, and see if the coolant is flowing. If so, could be a bad fan, or gummed up radiator......if NOT your turbine on your water pump could be bad, OR, by chance, the thermostat is not working.

check the relay