How ofte I have tochange the water pump oil - Dewalt Pressure Washer. 4200 PSI 4.0 GPM Pro Triplex Pump Gas

front seal, leaking oil means there is less oil in engine. continue and you will a new engine, have it repaired quickly.

Question edited for clarity.

No to both. The water pump is chain driven and takes water from one side and pumps it out under pressure from the other. The thermostat is fully enclosed in a housing with no access to oil.

Oil in Coolant only comes from a failed head gasket where the oil and water channels are in close proximity and under combustion pressure of hundreds of pounds.

Water pumps are designed to pump water through the engine, radiator, and heating system. Water pumps will not cause oil to enter the cooling system.Oct 4, 2016

Q: Can a bad water pump cause water in the oil - YourMechanic

Water Pump
https://shop.advanceautoparts.com/find/nissan-maxima-water-pump

Thermostat Housing
https://www.google.com/search?q=nissan+maxima.+thermostat+housing

..

impossible to answer with no model/year info for you car/truck

You can read here the information about OFT files: http://www.fileinfo.com/extension/oft To solve your problem, install Microsoft Outlook 2010

Component

Blower Motor Below right side oft?

Blower Motor Relay . In engine compartment fuse relay box

Blower Motor Resistors Below right side oft?

Blower Switch Below center oft?

Engine Compartment Fuse Relay Box Left side of engine compartment

ignition Switch Below left side oft?

Cl90 (68-LT gry) Left side of engine compartment (fuse relay box)

C20l (20-W HT) Below left side oft'?

C225 (13-Will) Below right side oft'?

Q216(8-WHT) Below right side ofi?

0203 Below left side oft'?

Blower Removal

1. Discharge the refrigerant from AC system. (Refer to the operating instructions of

your refrigerant recovery recycling charging station for proper procedures.)

2. Disconnect the inlet and outlet pipe from the evaporator.

NOTICE

- When connecting and disconnecting, refer to Quick Coupling below

- Immediately plug all open fittings to keep moisture out of system.

3. Remove the cover and drain hose.

4. Remove the glove box and disconnect the wiring harness connector.

5. Remove the blower unit.

6. Install in the reverse order of removal.

7. Evacuate the refrigerant system. (Refer to the operating instructions of your

refrigerant recovered cycling charging station for proper procedures.)

S. Charge the AC system. (Refer to the operating instructions of your refrigerant

Recovery recycling charging station for proper procedures.)

If water is coming out the bleed hole then yes the pump is bad. On link below tells you haw to replace if your car is a 91 civic.

http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?chapterTitle=Engine+Mechanical&partName=Engine+%26+Engine+Overhaul&pageId=0900c15280061770&subChapterTitle=Water+Pump&partId=0900c152800616e3

your water pump seal and oil seal have failed on the water pump shaft. Replace both seals noting which way the seals face. replace the water pump shaft if it is scored. Chaz- Moto DC

Drain the oil and water. Remove the radiator and exhaust pipes. Remove the oil pan on the bottom of the engine. Remove the bolts holding the water pump/oil pump on.
Here is a diagram of the oil pump/water pump:
http://216.37.204.203/Yamaha_OEM/YamahaMC.asp?Type=13&A=493&B=9

coolant leaking from water pump problem or circulation problem driving it will create more problems that are very costly tochange thermostat there are 4 ten mill nuts on water pump cover two bolts on inlet side hose of engine holds thermostat

there is no factory-designed period for this...the fluid is expected to last life of vehicle (120,000 mile is longest interval) . you can change it any time you want to.