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2007 Toyota Yaris, a/c and fan not working. also, water is leaking under the dash which makes me think the heater core is bad also. The fan was making noise prior to its failure.

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SOURCE: 2007 yaris hatchback,water leaking under dash

http://www.toyotaownersclub.com/forums/lofiversion/index.php/t71011.html

Posted on Oct 03, 2010

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1 Answer

Much water under front carpet of 2002 Toyota Sienna. seems to coming from up under dash on firewall I think, what say you.


If the Water smells like Antifreeeze then it is your HEATER CORE

If the water smells like Water or Dirty Water, then you have a LEAK.

Here is a TRICK..

Get an Aresol Can of WINDOW CLEANER.... Spray completely around your Windshield on OUTSIDE EDGES... YOU WANT IT FOAMY.

Get an AIR HOSE and BLOW the Windshield from the INSIDE and see where the leak is coming from.....

It has ALWAYS worked for me

Apr 08, 2013 | 2002 Toyota Sienna

1 Answer

Leak under dashboard


The only fluids under the dash are coolant that circulates through the heater core, or if you have a manual transmission a failed clutch master cylinder can leak brake fluid under the dash right where clutch pedal is located. If the heater core is leaking, it usually shows up on the passenger side. If it is just plain water, you need to check how rain water could be getting in past the firewall and under the dash.

Jan 06, 2013 | 2007 Nissan Frontier SE Crew Cab

2 Answers

Water in acumilating on passenger side floor. only when a/c is on.


Bad heater core leaking fluid. You can either replace the heater core or you can just connect the hoses on the fire wall that go to the heater core until you are able to get it fixed to keep water from leaking into the vehicle

May 29, 2011 | 2007 Dodge Grand Caravan SXT Minivan

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My heater does not work on my toyota tacoma 2007 prerunner, the fan is only working...


heater core might be blown-off. also see your fuses for heater under your dash fuse panel or at the under hood sometimes where they are.check your cold lever position might be at full cold counter clock wise, move it to hot position clock wise.

Jan 12, 2011 | 2007 Toyota Tacoma

1 Answer

After replacing timing chain in 89 toyota 22-re my heater hasn't blown very hot air. I've changed thermostat and flushed coolant lines. I used to have an awesome heater but now when I turn blower full...


yes a bad water pump will cause it not to circulate the coolant through the heater core,find your coolant leak 1st is it leaking into the cab on the passenger side of your truck? thats another sign of a bad heater core also.make sure that you don't have an air pocket in your cooling system.it has to be full for the heat to work properly.thank you for choosing fixya.com

Jan 10, 2011 | 1988 Toyota Pickup

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2003 Toyota Echo heat not working. Fan, but no heat.


There is a valve on one of the heater hoses that allows heated water to flow through the heater core when you select heat. With heat selected and car warmed up check to see if both of the hoses feel warm. If not then water is not flowing through heater core and valve may need replaced or heater core is stopped up.

Dec 23, 2008 | 2003 Toyota ECHO

2 Answers

96 thunder bird overheating


Sounds like the heater core (a small radiator of sorts under the dash) is leaking or a hose going to it is leaking. If in a warm climate, you could bypass or block the heater hoses temporarily. Their only purpose is to make heat avail to interior of car. The 2 heater hoses either connect to feedthru's at the firewall or simply pass thru the firewall to the heater core. Every car I've seen has it on passenger side.

Peer up under the dash, it should be clear where it's coming from.

Oct 26, 2008 | 1996 Ford Thunderbird LX

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