Question about 1994 BMW 3 Series

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Heater takes too long to heat up. And doesn't really get hot enough.

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Check for thermostat being left out as this can usually do what you have described

Posted on Feb 26, 2009

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1 Answer

Heater low heat


check to make sure your cooling fan isn't running constantly, also if your temp gauge says the engine is hot but the heat isn't you have a flow problem. maybe water pump or a clogged/ crimped hose. if your gauge isn't very hot then put some cardboard infront of the grill.

Jan 03, 2014 | 1999 Nissan Quest

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Heat delayed


heat not blowing or not getting hot? if it's not blowing it may be the blower motor going out but if its just taking a while to get hot it could be the duct exchanger which could be a vaccume leak or you could be low on engine coolant, if the engine coolant is low the heater core doesn't get enough coolant to warm the air that passes thru it.

Nov 08, 2013 | 2007 Nissan Altima 2.5

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I have no heat in my 2002 Tahoe. Could it be the Thermostat or the Heater Core? I really can't afford to take it to a dealership or a mechanic right now. Would like to do the work myself


When your driving down the road what does your temp gauge read? If it is in the normal place, about the middle, than the thermostat is working. The next thing to check is the coolant level. Make sure the overflow and the radiator are full. If the radiator gets low enough the first thing to stop working is the heat. If both of those are full than feel the hoses going to the heater core. They should both feel hot with the engine fully warmed up. If one is cold and one is hot than the heater core is plugged. Back flushing the heater may bring it back to life. Check those out first. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

Feb 07, 2012 | 2002 Chevrolet Tahoe

2 Answers

Heater stop working. blower still works no heat.


check the coolant level in the rad,then check both heater hoses when the truck is warmed up they should be the same temperature if not then the heater core is plugged.you can try running/soaking the heater core with CLR to try to unplug it.if it doesn`t work then it will have to be replaced.also the thermostat may need replacing.

Oct 27, 2011 | 1994 Toyota Pickup

2 Answers

I have a 2002 Ford torus that doesn't put out enough heat in the winter I have flushed out the heater core and change the thermostate but it still don't get warm enough and it doesn't have a...


If both heater hoses are getting hot then you know the coolant has to be flowing and the core should be hot.
What you will have to do is locate the blend air door servo.
The blend air door is a door (or flap) between the heater core and the A/C evaporator (even without a/c there is still a door to control the cabin temp)
Early vehicles with the slider controls used a cable but the later vehicles with a rotary knob or digital buttons use a servo to rotate the door mechanism.
The servos can go bad and the switches as well.
But from the sounds of it, your door is not moving to allow the heat through the vents.

Oct 01, 2011 | Cars & Trucks

1 Answer

I was driving my 1991 toyota pickup when it started to overheat i let it sit and cool down then drove it home stopping evertime it got to hot i looked under the hood and found the alternator belt broke I...


Check and top up the coolant level. When an engine heats up fast and there is no heat from the heater it is low enough on coolant that it doesn't circulate through the heater core. Hope this helps.

Sep 21, 2011 | 1991 Toyota Pickup

1 Answer

Heater does not put out hot heat just slightly warm after a while


If thermostat has been changed and still not hot enough, I'd take a look at this link for my tip regarding poor heat. Remember to bleed system good and make sure you have heater on when re-filling/bleeding the system. Quite often at idle, it's poor, and when RPM's are increased the heater feels hotter in this case.
( http://www.fixya.com/cars/r3698796-unclog_heater_core_rather_replace )

Oct 02, 2010 | 1995 Dodge Dakota

2 Answers

Heat not very hot


Possibly the thermostat is bad or stuck open, not allowing the engine to get hot enough. A plugged heater core can also cause poor heat.

Mar 09, 2010 | 2000 Jeep Grand Cherokee

2 Answers

Heater not heating hot enough. heater core not


Good place to start is a cooling system flush and thermostat replaced.

Dec 28, 2009 | 1994 Ford F150 Styleside Supercab

1 Answer

Heater not hot enough


have your heater core flushed out as well as your hole coolant system>hope this helps

Jan 27, 2009 | 2001 Mercury Sable

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