Water pump changed and thermostat changed now radiator fan won't come on at all
SOURCE: 2001 Mazda MPV upper front oxygen sensor change
I replaced this sensor about 6 months ago. (If this is the sensor that is located near the firewall on the exhaust manifold under the ignition coil.) The only way to easily replace it, is to remove the MAF and air filter assy. then remove the intake plenum, remove the ignition coil, and then you'll have access to the sensor. You'll need a sensor removal socket. If the socket slips around the hex of the sensor, then you'll need to use a regular deepwell socket and cut the cable from the top of the sensor, or use a combination wrench that will fit it.
The most difficult part of removing the intake plenum is getting the nut loose from the EGR valve. DO NOT just remove the two bolts holding it to the intake plenum. It will not line up correctly during re-assembly and may not seal tightly either.
This took about a Saturday to do. You'll need new plenum gaskets to replace the old. While your at it remove the throttle body and clean the carbon from the ports that lead to the EGR valve and replace that gasket as well. The gaskets will run about $30.
SOURCE: replaceing a radiator in a 2004 mazda tribute
Radiator
Removal & Installation
2002-2004 Ford Escapes should be filled with Motorcraft Premium Gold Engine Coolant or equivalent (yellow color). Always fill the cooling system with the same coolant that is present in the system. Do not mix coolant types.
NOTE: Do not add/mix orange-colored Motorcraft Specialty Orange Engine Coolant. Mixing coolants can degrade the coolant’s protection.
NOTE: The addition of Motorcraft Cooling System Stop Leak Pellets VC-6 darkens Motorcraft Premium Gold Engine Coolant from yellow to golden tan.
Used engine coolant should be disposed of in an appropriate manner. Follow your community’s regulations and standards for recycling and disposing of automotive fluids.
CAUTION
Never remove the pressure relief cap under any conditions while the engine is operating. Scalding coolant and steam will cause damage to the cooling system, engine and will result in personal injury. Wait until the engine has cooled. The coolant should be recovered in a clean container for reuse. If the coolant is contaminated, it must be recycled or disposed of correctly. Note that only about 80% of coolant capacity is recovered with the engine in the vehicle. Dirty, rusted or contaminated coolant requires replacement.
To Remove:
SOURCE: 2001 Mazda Tribute (3.0 L) Heater motor functions on high only
Its the Blower Resistor....If it was the switch, it probably wouldn't work at all....But the Resistor will give you those symptoms, of working on high med or low
SOURCE: I have an 02 Mazda Tribute with a leaking Radiator
1. Drain coolant
2 Remove lower splash shields
3. Disconnect the lower radiator hose and the high pressure transaxle line
4. Lower the vehicle
5. Disconnect the transaxle return line
6. Disconnect the upper radiator hose and degas hose
7. Position the hood latch assembly out of the way
8. remove the 2 bolts and the center support
9 remove the 2 top bolts retaining the cooling fan to the radiator
10. remove the upper radiator support brackets, and remove the radiator from the vehicle
11. To install, reverse the removal procedure
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