1998 escort zx2 -water not circulating through motor and no heat
Problem started with a leak in heater line and the car overheated;I fixed that problem and replaced thermostate and and replaced the coolant but still nothing-all water lines are cold.
When you turn on the heater the engine seams to idle down and drag. Do you think I need to replace the water pump?
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Water pump. First make sure you have enough coolant and the reservoir system isn't leaking(or any leaks). Fords are hard to get air out of the system. I always over fill Fords because of air. It will usually purge out in a couple days. only getting warm at idle and hot going down the road is a water pump or something is still clogged up. IE.. heater core.
After the engine has reached normal operating temperature, feel both heater hoses going into the firewall. Are both hot? If both are hot, it's probably the door or doors in the heater case not operating from the selector knob on the dash. If only one hose is hot, the coolant is not circulating through the heater core. Look for a water valve in the hoses that is shut. If no valve, crack open the cold line to see if you can start circulation through the core. If neither hose is hot, pull off the inlet to the heater core (it may come from the cylinder head area) and run the engine and check stream flow. It won't spurt out like a garden hose, it should flow out in a smooth even stream, maybe just enough pressure to push a steady stream. If no flow comes out, coolant is low, or there is a circulation problem in the engine, like a kinked hose, a weak water pump...
Does the radiator cap hold pressure in the cooling system?
Timing - engine is not sounding right or back firing. Head gasket - water and oil mixing, see inside water bottle. or open bottle. rev engine when cold, if starts spitting water out while cold like a fountain. Water pump - Water leaking from side of engine. or when car started and water bottle is open and no circulation is visible could be signs of water pump Remember - Block radiator lines can also cause over heating problems and lack of water circulation.
Make sure it is full of brake fluid first. If it is, check for leaks around the clutch master and slave cylinder. The master cylinder is mounted on the firewall below the brake master cylinder and towards the driver side. Follow the line to find the slave cylinder on front of the transmission. If you find no leaks, either the master and/or slave cylinder is bad or the clutch fingers are broken.
dear friend:i think we should start with pressure testing the system for water leaks,if there is leaks you will loose pressure,if you reach working temp feel the top and bottom radiator hose,they should be the same temp,if not then the thermostat is faulty,if you got poor circulation then it can be the waterpump or the radiator is blocked,check airflow threw the radiator,check radiatorcap pressure,
Remove and raise upper hose at thermostat end and remove lower rad hose. Fill rad with a hose and watch for flow from bottom rad hose and/ or bottom rad hose connecton.......water should fall though rad easily. Honda rads are cheap.....any restriction....replace rad.
Remove thermostat....fill thermostat housing with hose and watch for water flow at bottom rad hose. Flush good.
Remove heater hoses.......flush back and forth until a good flow is present "With heater control set to hot" if no or poor flow....replace heater core.
Stop leak can plug everything.
Also.......not likely causing over heating....but ....at your mileage,if you do not know if the timing belt has been changed.....CHANGE IT NOW! Water pump is optional at this mileage.