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1994 mazda b3000 heater dose not get hot

New thermo new heater resistor flushed core is there a sensor on the engine by the thermostat housing or fuse is it a cable that slipped help

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6ya6ya
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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

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emissionwiz
  • 76630 Answers

SOURCE: replacing the heater core in

From Haynes Repair Manual #36071, Ford Ranger Pickups 1993 - 2005 and Mazda Pickups 1994-2005 B2300, B2500, B3000, B4000: (1)Disarm the airbag system; (2)allow the cooling system to completely cool down; (3)using a thick cloth for protection, turn the radiator filler cap to the first stop; (4)step back and let the pressure release; (5)once the pressure has been released, completely drain the cooling system; (6) working within the engine compartment, loosen the ****,ps on the heater hoses at the engine compartment side of the firewall, twist the hoses and carefully sepseparate them from the heater core tubes; (7)plug or cap the heater core tubes to prevent coolant from spilling into the passenger compartment when the heater core is removed; (8)place a plastic sheet on the floor of the vehicle to prevent stains if the coolant spills; (9)remove the instrument panel; (10)remove the PCM heat sink and ground strap; (11)remove the heater plenum chamber; (12)separate the heater core from the heater plenum chamber; (13)installation is the reverse of the removal with the following additions; (a)fill the cooling system; (b)run the engine, check for leaks and test the heater

Posted on Aug 21, 2008

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  • 115 Answers

SOURCE: heater not blowing hot air

sounds like a blend door problem... find lever to blend door disconnect it move lever back and forth and see if it changes anything...

Posted on Aug 01, 2009

  • 484 Answers

SOURCE: fuse box on 94 mazda b3000

Try testing the brake switch (it is behind the brake pedal) for 12V and continuity between wires when engaged. You can also try checking the brake light relay. It is located on the fuse block.

i hope this helps
-matthew

Posted on Oct 27, 2009

wracefans24
  • 1985 Answers

SOURCE: 98 sable -no heat. changed thermostat, new

Since your blower is working and it is a heat issue,thats where we'll start,First thing is have you checked the coolant level in the radiator when engine is cold,make sure it is filled to top,next verify you have coolant in reserve ,Start your van and get it up to normal operation temperature,If your heat gauge on the dash works correctly it should be 190 degrees,Now lift the hood and locate the two heater hoses going into the heater assembly at the fire wall,Both hoses should be hot to hold on to,if both are hot and no heat inside your problem will be the blend air door in heater assembly.
if neither hose is that hot you need to replace the thermostat in the engine to get it up to 195 degrees.
if one hose is hot and one is luke warm then the heater core is blocked and to blame. hope this helps you.

Posted on Jan 02, 2010

  • 1 Answer

SOURCE: 1988 Ford F-150 4x4, the heater blows cold air,

I would try to replace the thermostate again, Sometimes these can get damaged in the warehouse. Cheap to try it again, $12-$15

Posted on Jan 04, 2010

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93 GMC Safari overheating. This happened spontaneously. Runs hot very quickly when I drive it. There is antifreeze in both radiator and overflow res, overflow res fills up more after driving a bit. ...


It would appear your thermostat is stuck in the closed position , find where it is on your engine, drain coolant and remove thermostat housing and stat, replace housing(liquid gasket OK) and coolant. now run engine, turn heater controls to hot leaving filler cap off, top up any water to max and replace cap now warm up to temp until fan comes on. if all ok replace thermostat with a new one and new gasket, you could also flush the sytem out at the same time with a hose pipe by loosening one of coolent pipes and flush radiator.

Nov 04, 2013 | 1993 GMC Safari

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Heater dose not get hot changed thermostat and heat resistor flushed core is there a fuse or sensor


fuse is in the fusebox around a 20 amp or so..and check vacuum controls also...

Jan 21, 2013 | Cars & Trucks

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How to back flush heater core 2007 grand prix


drain coolant system locate heater cores hoses going through firewall you need to buy the radiator flush kit at any auto parts stores. remove heater cores hoses from one end or buy extra long heater hoses same size as heater core hoses in vechicle at auto parts store use the flush kit when you flush through one of the heater core hoses let the other hose drain in a drain pan when you use home garden hose use low water pressure dont use garden hose to the max or you will rupture heater core. your best bet let radiator shop flush whole coolant system. because heater cores hoses are in a tight spot.make sure engine off if you just going to flush out heater core only .after flushing heater core good time to replace heater core hoses.if job too hard or complicated let radiator shop flush out radiator the engine block and heater core because if radiator stopped up or engine block stopped up the gunk and rust will reenter plug up heater core.if you tight on money you can flush out your own radiator.drain out radiator using large drain pan. remove top radiator hose and remove bottom radiator hoses connect to water pump.use garden hose with flush kit part with water pressure not too high put garden hose to top radiator hose run water until clear water run out bottom radiator hose in drain pan,the flush out engine block remove thermostat.if you had another spare thermostat housing with RTV SILICONE SEALANT THAT HAS SET UP INSTALL THERMOSTAT HOUSING BACK TO ENGINE WITHOUT THERMOSTAT FLUSH OUT THE ENGINE BLOCK, WHEN DONE INSTALL NEW THERMOSTAT THEN INSTALL ORIGINAL THERMOSTAT HOUSING WITH NEW ORING WHICH YOU BUY AT DEALERSHIP.IF ALL SOUND COMPLICATED LET RADIATOR SHOP FLUSH OUT COOLANT SYSTEM.

Nov 27, 2012 | 2003 Pontiac Grand Prix

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I have an 1994 ford escourt wagon LX...i have replaced the thermostat and housing and back flushed the whole system..the air still doesnt blow hot enough air to warm the car up inside..this needs to be...


Even though you already flushed it I will bet the heater core has build up in it. My escort did that and i had to hook a garden hose direct to the heater core and flush it with dawn dish soap both directions several times untill all the slimy old antifreeze inside it finally broke loose and came out. Then it worked great

Feb 09, 2011 | 1994 Ford Escort

2 Answers

I have a 96 sl saturn. takes half an hour for my car to reach running temp. When i start driving the engine cools down so far, to the point i have no hot air for my heater. I replaced the thermastat, i...


replace the thermostant again this time get a hotter temp thermostant and buy it from the dealer, the other thing is that these cars are known for the temp sensors being bad this would give you the false reading on the gauge but would not affect the heat, if its taaking a long time then i would replace the stant and this time or before replacing the stant i want you to flush out the heater core, remove the hoses from the heatercore and use a water hose to flush water through the heater core, a plugged core will not throw heat or will start to allow water to flow when it gets good and hot to flow through the retricted core due to rust and crud, try the flush first and then try a new temp sensor if the flush helps the heat, hope this is helpful good luck.

Jan 07, 2011 | 1993 Saturn SL2

1 Answer

1992 mazda mx3 heater blows warm, but not hot. Coolant is full, heater hoses are hot. What is wrong?


Hot air is dependent on the coolant temperature and the heater core. There are several things that can cause your problem. The easiest to check is the coolant level in the radiator\reservoir. There must be enough coolant to flow freely between the engine and the heater core. The next is the thermostat. If the thermostat is not closing it would prevent the the coolant from reaching a high enough temperature to allow for hot air. The thermostat is not expensive or difficult to replace. The third thing is a blockage in the heater core. Flush the coolant system properly can sometimes take care of this. If it does not the only alternative is a new heater core.
Hope this helps.

Sep 12, 2009 | 1992 Mazda MX-3

2 Answers

1992 mazda mx3 heater blows warm, not hot


If it ran out of water and you filled it up just before the problem started then their may be air in the system so will need bleading. If that's not the problem then could be a sticking thermostat. Vheck these first and let me know if you need further help I can advise further. Cheer's

Sep 12, 2009 | 1992 Mazda MX-3

1 Answer

No heat in my 2002 madza mpv.


Two most common causes of your problem are low coolant ( air in the heater core) and a thermo stat stuck open. If you have a temperature gauge and it is reading on the low side. Like 140 Deg or less, you need a new engine thermostat. Feel the top of the radiator tank after the car has been driven. If it is too hot to touch, the thermostat is no the problem. As the system has been flushed and filled I suspect there is enough coolant. Last item on the list is the coolant valve for the heater core. Many cars have a water valve located in line with the supply pipe to the heater core. This valve may be in the engine compartment or under the dash. Check the heater temperature control and follow the cables. One cable most likly goes to this valve. Maybe a cable retaining clop has fallen off

Feb 06, 2009 | 2002 Mazda MPV

1 Answer

Replacing the heater core in 2000 mazda b3000


From Haynes Repair Manual #36071, Ford Ranger Pickups 1993 - 2005 and Mazda Pickups 1994-2005 B2300, B2500, B3000, B4000: (1)Disarm the airbag system; (2)allow the cooling system to completely cool down; (3)using a thick cloth for protection, turn the radiator filler cap to the first stop; (4)step back and let the pressure release; (5)once the pressure has been released, completely drain the cooling system; (6) working within the engine compartment, loosen the ****,ps on the heater hoses at the engine compartment side of the firewall, twist the hoses and carefully sepseparate them from the heater core tubes; (7)plug or cap the heater core tubes to prevent coolant from spilling into the passenger compartment when the heater core is removed; (8)place a plastic sheet on the floor of the vehicle to prevent stains if the coolant spills; (9)remove the instrument panel; (10)remove the PCM heat sink and ground strap; (11)remove the heater plenum chamber; (12)separate the heater core from the heater plenum chamber; (13)installation is the reverse of the removal with the following additions; (a)fill the cooling system; (b)run the engine, check for leaks and test the heater

Aug 21, 2008 | Mazda B3000 Cars & Trucks

3 Answers

Heating / Cooling System Malfunction


all mazda 929 have this problem when the coolant level is dropped
the heater core has no fluid in it since it ts off of the engine block . hence it cannot recive any coolant to heat the car. the best way to fix this is bleed the system of air . when filling coolant squezze the return hose with the cap on the rad it will force fluid bact to the core and push the air out
once you do this a few times you will see the rad fluid droped fill it up and run the car . this should solve this problem

May 15, 2008 | 1994 Mazda 929

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