Question about 1999 Honda Passport

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1999 honda passport 2wheel drive, not maintaining water level in radiator, blows out the reservoir tank, have to add water daily.

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I'd bet you've got a bad head gasket. Leaking compression into the water jacket can displace coolant and force it all out into the reservior. I had an old rx7 that had a bad coolant seal, did the exact same.

Posted on Nov 08, 2012

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VECHICLE OVER HEATING COULD BE FAULTY THERMOSTAT MORELY THE PROBLEM..ALSO CHECK FOR LEAKING WATER PUMP WEEP HOLE OR PUMP GASKET LEAKING.REPLACE WATER PUMP IF WEEP HOLE IS LEAKING.IF ALL IS GOOD CHECK RADIATOR HOSES AND RADIATOR FOR COOLANT LEAKS.FIND NO LEAKS.MAKE COOLING FAN COMING ON WHEN ENGINE TEMPERATURE GET TO UP TO 188 TO 190 DEGREES.IF COOLANT FAN DONT COME ON CHECK FUSE AND RELAY.ALL IS GOOD.HOT WIRE COOLING FAN TO MAKE SURE ITS WORKING.IF NOT FAN MOTOR FAULTY.IF FAN MOTOR OKAY.COOLANT TEMPERATURE SENSOR FAULTY.BESURE TO HAVE 50/50 ANTIFREEZE AND WATER TO RAISE BOILING POINT TO KEEP ENGINE FROM OVER HEATING.

Posted on Jul 11, 2010

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Replace your radiator cap.

Posted on Jul 11, 2010

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1 Answer

Can a bad heater core valve make the engine run hot .and bowl water back up the the reservoir tank .on a 2004 honda passport .6cyl.3.5 litter and if not what woud.other than the water pump being out


No, the heater vale can not make the engine over heat, make sure your thermostat is opening and coolant is circulating , if good make sure the radiator fans are working properly.

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HOW DO I REPLACE WINDSHIELD WASHER FLUID RESERVOIR FOR HONDA PASSPORT 1999


Disconnect the sprayer hose and swap the tank, one for one. Then install the old hose on the new tank. Done.

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1997 Honda Passport overheating and no heat inside car


Low coolant is the usual culprit, followed by a bad thermostat. When the car is cold take the radiator cap off and check the coolant level and add as needed, then make sure overflow tank is at the correct level. If the radiator is low but the overflow has fluid, replaced the radiator cap.

Mar 09, 2014 | 1997 Honda Passport

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How do you open the moist cap? i want yo fill it with water but it wont open


What is this cap on?? Radiator or windshield washer reservoir? Something else?

If the radiator, most newer cars have a plastic bottle or tank that has a "cold" and "hot" level indicated. You should be able to see the coolant level thru the tank. You should NOT need to open the radiator cap if your car has this tank. Add a 50/50 mixture of water and coolant (of a type your car requires) up to the "cold" mark and start the car. Let it run with the heater set to HOT and fan set to HIGH. Continue adding the 50/50 mixture to maintain the coolant level to the HOT level mark on the tank as needed with the engine running. Stop when there is HOT air blowing out of the heater.

If your car does NOT have this tank, you may only open the radiator directly when the engine is COLD. Wait several hours for the engine to cool after shutting off before attempting to remove the cap.

When cold, press DOWN on the cap WHILE turning. Most caps will come off after a 1/4 to a 1/2 turn. Start the engine and set heater HOT and fan to HIGH. Continue to add a 50/50 mixture of coolant to the radiator until the heater blows HOT air. The coolant level in the radiator should be just under (1" or less) from the bottom of the radiator opening.

Was this the info you're looking for?

Sep 13, 2013 | Cars & Trucks

1 Answer

Temperture gage starting to fluxuate while driving.


This can be caused by an insufficient coolant (aka antifreeze) level. Look at the coolant level in the reservoir under the hood. There should be two marks on the bottle "warm" or "hot" and "cool" or "cold". If the engine has been running for a while as in the case when the car has been driven few miles, the coolant level should be up to the "warm" or "hot" line on the bottle. If the car has been parked without the engine running for a couple of hours or more, the coolant level should be at the "cool" or "cold" line on the bottle.

Never remove the radiator cap when hot or if the engine has only been been stopped for less than 2 or 3 hours.

If the hot coolant is at a level that is below the warm or hot line, you should add more of the coolant / water mixture only to the reservoir - not to the radiator. If you are only able to check the coolant level when it is hot - you will have to repeat this procedure until the coolant level of the reservoir is maintained. Checking the hot coolant level can only be done when it has been allowed to cool between hot checks. The cooling period is the only time when coolant is drawn from the reservoir back into the radiator.

If the cold coolant is at a level below the cool or cold line of the reservoir you should add more of the coolant / water mixture to the reservoir and to the radiator, too. Fill the radiator to the top of the neck where the tube from the reservoir connects to it.

If you're still having widely fluctuating temperatures while driving at normal operating speeds, there may be a problem with the water pump, thermostat or other portion of the cooling system.

I hope this helps & good luck!

Oct 19, 2011 | 1994 Toyota Corolla

2 Answers

Looking for the fill plug on a 200 dodge darango 4 wheel drive front punkin all i see is a vent pipe


COOLANT-ADDING ADDITIONAL
Do not remove radiator cap to add coolant to system. When adding coolant to maintain correct level, do so at coolant reserve/overflow tank. Use a 50/50 mixture of ethylene glycol antifreeze containing Alugard 340-2 y and low mineral content water.
Remove radiator cap only for testing or when refilling system after service. Removing cap unnecessarily can cause loss of coolant and allow air to enter system, which produces corrosion.

COOLANT LEVEL CHECK
The cooling system is closed and designed to maintain coolant level to top of radiator.
WARNING: DO NOT OPEN RADIATOR DRAINCOCK WITH ENGINE RUNNING OR WHILE ENGINE IS HOT AND COOLING SYSTEM IS UNDER PRESSURE.
Remove radiator cap. The coolant level should be to top of radiator. If not, and if coolant level in coolant recovery bottle is at ADD mark, check for:
  • An air leak in coolant reserve/overflow tank or its hose
  • An air leak in radiator filler neck
  • Leak in pressure cap seal to radiator filler neck
TRANSMISSION and OIL LEVEL CHECK TUBES
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Mar 04, 2011 | 2000 Dodge Durango

2 Answers

2002 honda civic water is blowing out of the coolant tank


Sorry to hear all this has been going on and the obvious hasn't been detected by a shop. All those parts probably would not of had to be replaced. This is a classic systom of a blown head gasket. Not every head gasket blown will have coolant in the oil. Compression leak from a cylinder will enter water passage in head and blow out the coolant because compression is greater pressure than coolant system pressure.

Dec 12, 2009 | 2003 Honda Civic

1 Answer

How to tell if radiator tank is full up on accord 2000


You have what is called a coolant reservoir (big nylon bottle with a cap that is connected by a small hose from the top of your radiator, just under the cap) that operates in conjunction with your radiator. It has marks on it for MAX and MIN. If the water level in that reservoir is between those marks, you engine fluid level is okay. If it is not between those marks (near MIN when the engine is cold; near MAX when the engine is hot) add water until that is the case.
Hope this helps you.

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Brake Fluid Sensor


check autozone .com, they have online manuals.

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