answersLogoWhite

0

It's more likely to cause too much heat. What causes no heat is either the heater valve not opening, air in the heater core, or a bad heater core - arranged in descending order of probability and ascending order of suckiness.

A car's cabin heater is a simple system: there is a little radiator under the dashboard, called the heater core. Hot engine coolant flows through it when you open the heater valve. When you have the heat on you usually also have the fan on; the fan pulls air past the heater core, blows it into the cabin, and keeps you warm. (Helpful hint: if your car starts to overheat, turn the heat on all the way and set the fan to high speed.)


The first thing to check if you have no heat, is to open the hood and look at the firewall. On it, somewhere roughly in the middle of the car, is a valve with a little arm to move it, and three coolant hoses coming out of it. If coolant isn't leaking out of anywhere, check to be sure there's a control cable attached to the valve arm. If it's kinda hanging out in midair, or if the end's broken off, the valve can't open - it's spring-loaded to stay closed when the cable isn't hooked up - and you'll get no heat. Reattaching the cable should fix the problem.


If that didn't do it, turn the heat on all the way. Once it is, find the thermostat housing on the engine. There's a bleeder valve on it that opens with a 10mm wrench. With a COOL!!!! engine, first open the valve, then the radiator cap, then pour Honda Genuine antifreeze into the radiator until a good stream of coolant comes out the bleeder valve. This will force the air out of the heater core.


If that didn't work you're looking for leaks in the system. You do NOT want to be hit with a leaky heater core; you have to remove the whole dash to get to it.

User Avatar

Wiki User

9y ago

What else can I help you with?

Related Questions

1997 Mitsubishi eclipse rs has a bad catalyctic converter can it cause it not to start?

No it should not


Where can you find pictures of a catalyctic converter?

well i advise you to go to the google home page ckick on images and then type in catalyctic canverter


Why is truck losing power over 60 mph?

catalyctic converter is clogged.


How much does it cost to replace the catalyctic converter you a1999 mercury villager?

Unless you have a California model, the converter assembly sells in the aftermarket for about $300.


What is the life expectancy of the catalyctic converter on a 1981 El Camino Conquista 305 In mileage please Thanks?

The catalytic converter should last forever if the car is properly maintained.


What happens if you take off your catalyctic converter from your Buick Riviera?

It is illegal and if you get caught you will pay a hefty fine. Any also you cannot sell the car without a converter installed.


Why car radiator are made of platinum?

They aren't. Older ones are made of copper, now it's aluminum. Platinum is used in the catalyctic converter.


Is it safe to drive without a cover for a catalytic converter?

No,, the converter gets very hot and can cause a fire if no heat shield is in place.


Why does a 97 grand am 24L start then shuts down replaced fuel filter and tps and still does the same starts then shuts down?

try checking your catalyctic converter


Will a faulty catalic converter cause a 1998 Honda odyssey over heat?

yes


What can cause a 1994 Mazda MX-6 not to heat up after the engine is warm?

catalytic converter


What would cause a 2002 Chevy trailblazer power loss from time to time?

I had this happen to my 04 TB.....it felt very sluggish, and took a while to accelerate (even on the highway at speeds 50-70mph). Turned out to be the catalyctic converter. Cost $800 to replace at the dealer...fixed the problem though.