Question about 2005 Nissan Pathfinder
Posted by Anonymous on
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Posted on Jan 02, 2017
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
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
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
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
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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