Question about 2005 Nissan Pathfinder

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Broke the plastic valve that connect coolant hoses off heater core 2005 pathfinder

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2005 Pathfinder Heater

Just had the same problem and got the same answer about removing the body to repair. Apparently it's an integrated set of lines serving both rear heat and cooling. Very expensive and not covered by extended warranty. My dealer was able to isolate the corroded heater line at the rear wheel well. They cut out that section and replaced it with a rubber hose and clamps. It worked for heat, but if AC lines suffers the same fate, there is no option other than the very expensive full line replacement.

Posted on Jan 13, 2009

  • 1 Answer

SOURCE: 2004 NISSAN ALTIMA 2.5 NO CABIN HEAT..ENGINE AT OPERATING TEMP.

If the engine is not over heating than most lilely it isn't the thermostat or waterpump that is causing the problem. Check the heater hose coming out of the manifold and see if it is warm to hot. Next check the return line from the heater if it is still cold or moch cooler than the inlet, the most possible problem is the heater water control valve if this model has one or possible the core of the heater is plugg with slime cause by some antifreezes setting during the summer months while not being used. If this is the case than remove tihe two hoses and back flush the heater core with water pressure until it runs clear. I have had this problem before and this cured my problem. I also had to flush the engine and radatior also. Hope this help. .

Posted on Mar 14, 2009

  • 1374 Answers

SOURCE: leaking coolant from head gasket area and valve

Well the head gasket job will cover the valve cover gasket ( you have to do one to get to the other) Bring it to a repair shop its about a $1500 job.

Posted on Apr 19, 2010

swoop611
  • 488 Answers

SOURCE: i have no heat. I

check where the heater hoses connect to the engine, the hose tails may be blocked..
Check the heater valve too as some valves will not work if fitted backwards.
You may also have an airlock issue.
If the heater hoses or core are full of air, the water may not circulate and push the air out.
You may have to bleed the air out manually by loosening each of the hoses in turn with the engine running and upto normal operating temperature BUT with the pressure cap OFF!!!!!
Be careful of moving parts, hot parts and ignition components..

Posted on Dec 19, 2010

  • 5280 Answers

SOURCE: heater core

Take the old one with...you mean rubber, not plastic, right? The heater coolant hoses?
The rubber hoses are easily replaced. You just need the proper size and length. Take the old one with you to any parts store. Add a little 50-50 solution of anti-freeze to top off your coolant after you're done.
If you mean some plastic hose, you'll have to explain.

Posted on Dec 01, 2011

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1 Answer

No heat in 2005 explorer, the blower works, and it is not the heating coil


Is the system full of coolant ? Is the heater control valve opening an allowing coolant to go through the heater core ? Under the hood in engine compartment , on the heater hose , a metal or plastic round canister with vacuum hose hooked to it .You can google heater control valve for 2005 ford explorer to see what it looks like . When you find it ,with engine running pull the vacuum hose off to see it the valve opens an closes ! Feel the hose after the valve , is it hot ?
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2005 gmc savanna van...cooling system will not blow hot heat. water pump,heater core,radaitor and thrmostate replaced. is there any electrical problems/


don't know this van specifically, but some things to check, make sure cabin filter is replaced or clean, you didn't say if the blower itself works, if not, correct or replace. Check the hoses going to the heater core, if hot water is flowing thru the core, both hoses should be hot. Check the heater controls to make sure doors in the system are opening closing as they should, you may just be drawing in cold air and not going thru the heater core.

Feb 11, 2015 | 2005 GMC Savana

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Get the air out of the cooling system,installed new radiator in 2007 nissan pathfinder.


You may need to take a heater hose lose at the fire wall to bleed the air out.

Oct 01, 2014 | 2007 Nissan Pathfinder 4.0

1 Answer

Can I bypass the heater core on a 2005 Nissan pathfinder. The plastic nipple broke on plastic manifold the heater core pipe connects to.


find the coolant pipe in and the coolant pipe out and use a connector to join the two together. This takes the heater out of the system

Aug 10, 2014 | Cars & Trucks

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What is the name of the part the heater core is connected to under the hood


do you mean the radiator,,,it will have all the water hoses connected to i

Mar 27, 2013 | 2005 Nissan Pathfinder

1 Answer

Car heater not geting warm


first of all. check coolant level. One way to tell if the coolant is circulating through the heater core is to feel both heater hoses. Both the inlet and outlet return hoses should feel hot when the engine is at normal operating temperature and the heater is on. some vehicles have a "bleeder" valve (or more than one valve) on the thermostat housing and/or certain hose connections. Opening the valve(s) allows air to escape as the system is filled. The valve(s) should then be closed when coolant starts to dribble out the valve. On vehicles that lack these special bleeder valves, it may be necessary to temporarily loosen the heater outlet hose so air can bleed out as the system is filled. A plugged heater core. Accumulated crud in the cooling system may plug the core and block the flow of coolant. The only cure here is to replace the heater core. if above is ok. replace thermostat.

Feb 09, 2012 | Cars & Trucks

1 Answer

Heater core


Take the old one with...you mean rubber, not plastic, right? The heater coolant hoses?
The rubber hoses are easily replaced. You just need the proper size and length. Take the old one with you to any parts store. Add a little 50-50 solution of anti-freeze to top off your coolant after you're done.
If you mean some plastic hose, you'll have to explain.

Dec 01, 2011 | 2001 Nissan Xterra

1 Answer

<yn 81 monte carlo -


check the coolant. then outside under the hood near where the 2 hoses go into the heater core there is a heater coolant control valve. make sure the vac line is connected and not broke. feel the hoses there at the heater core after it warms up. are they hot? if not the valve isnt opening and letting coolant into the core

Jan 22, 2011 | Chevrolet Monte Carlo Cars & Trucks

2 Answers

Poor coolant flow through heater core. Heater core and hose to radiator are open. Getting poor flow from hose connected to top of engine to heater core. What controls the flow in that hose? HELP.


on some GMC models there is a valve that opens when you turn on the heat inside. It is called a heater control / actuator valve, it works off engine vacuum thru hoses connected under the dash, and going to the top of the valve. Now junk and crud and old rust will get in the valve and restrict it's flow. You will have to pull the valve off and clean it, but it is best to replace it, seeing it is hard to get all the junk out of it.
It looks like a L shape pipe with a hose on top & bottom, black plastic,and a smaller line on top mounted close to the wheel well about even with the exhaust manifold on the pass side. Drain the coolant, remove the valve and see if this is the cause, lots of gunk in the one hose. It is not real hard not real easy to replace this valve. Now if your truck does not have this valve check the pipe that the hose hooks to on top of the engine, remove the hose and see if a small screw driver will go down inside or if it is stopped up. .

Dec 07, 2009 | 1991 GMC Sierra

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Nissan dealer claims they replaced the heater pump [not the water pump], is there such a thing as a heater pump?2005 nissan pathfinder


Yes, your Nissan Pathfinder has a heater pump. The heater pump circulates the hot coolant from your engine to your heater core(s). You have two heater cores if you have rear temperature controls. My guess is that your problem was that you had very little heat or no heat at idle. Attached is the page from the service manual on how to replace it.



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Dec 02, 2009 | 2005 Nissan Pathfinder

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