Question about 1989 Buick Regal

Open Question

No heat, changed thermo, flushed heater core and still no heat

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
blueextc3221
  • 15935 Answers

SOURCE: no hot air from heater, blower runs fine

The heater in your car depends upon a flow of hot coolant going through the heater core in order to get hot air into the car. If the heater core is partially plugged, it will restrict the flow. If you have a head gasket that is putting exhaust into the cooling system, it will eventually get into the heater core. When this happens there is no coolant in the heater core to make the air warm. If the water pump vanes have corroded away the result will be very poor coolant circulation causing the heater to not blow hot air. If your car is equipped with a heater control valve that is not functioning properly, the coolant flow will be restricted. One or a combination of these factors is likely the culprit in your case.

Since you state the 2 things you ruled out, that leaves only the water pump. Is the car running hot? The thermostat may be sticking as well... but im leaning toward the pump.

Posted on Jan 21, 2009

Ad
motor1258
  • 6674 Answers

SOURCE: No heat in a 98 Mazda Protege

See what your rad fan is doing with setting at heat, not defrost. It should only come on when temp gauge gets up around operating temperature.

Posted on Jan 24, 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

  • 290 Answers

SOURCE: No heat/defrost 01 corolla

Sounds like you have air trapped in the heater core when you flushed the heater core. loosen the upper most heater core hose and run the engine untill coolant seeps out. Wait until the coolant has reached running temperature.

Posted on Jan 18, 2010

  • 394 Answers

SOURCE: 1998 Saturn SL1 - I

Hi,
As both hoses from the heater core are hot, there is no need to replace the heater core.
The problem will be in the heater control under the dash. I have no experience with Saturn, but I am responding to your problem so as not to remove the heater core.. That would be wasted time and money. The heater, A/C mixture control is the problem.
Someone else will need to guide you through the rest of the way.
Sorry i could not lead you all the way through.
Wayne

Posted on Nov 17, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What wrong when SUV won't heat at idle but heat when rush motor


Yes replace thermo and back flush heater core both ways shld take care of the problem

Jan 28, 2015 | Cars & Trucks

1 Answer

I have 2000 astro van and I'm not getting heat, I changed thermo stat and flushed heater core. Still no heat, whats the next step?


Feel your heater hoses. If both are hot, the core is circulating. If only one is hot-poor or no circulation of the core.
If the heater core is circulating, the temperature blend door may not be working to let blower air pass across the heater core, and into the vents. If vacuum operated, watch the vacuum valves as you move heater controls-you may spot the problem. Check that the vacuum line from the engine to the control switch is working and still connected. If not operated by vacuum, the controls may have cables to the heater case or may be electrically operated. You'll just have to scope it out. Good luck.

Nov 24, 2012 | Chevrolet Astro Cars & Trucks

1 Answer

76 COUPE DE VILLE NO HEAT!!! FLUSHED COOLANT SYSTEM REPLACED ANTI-FREEZE, REPLACED THERMOSTAT TO 195 DEGREES, REPLACED A/C THERMO VACUUM SWITCH, HOWEVER FLUID IS CIRCULATING THRU HEATER CORE. THERMOSTAT IS...


Feel the hoses going to heater core, one should be hot and the other warm. If one is cold or both are then heater core is clogged. Make sure heater control valve works and as vacuum to it and or the cable is free.

Jan 16, 2011 | 1976 Cadillac Deville

1 Answer

I have a 2000 nissan xterra my heat dont warm up i change my thermo stat if i get my heater core flush what are my chances of it working what are the major problem with the 2000 nissan xterra i done...


forget all the above items you mentiond,the heater metrick/core should be ok if you put a cooler flush through the system,im looking at the thermo switch mounted on the top of the water system it will have two wires on it and tells the engine when to let hot water through the core,also if its not working the engine will not perform great so try this and forget about new spark plugs/wires/coil pack ,as these are nothing to do with heating.adrian,,,

Dec 31, 2010 | 2000 Nissan Xterra

2 Answers

Heater core problems no heat changed thermostat still no heat any ideas


try flushing cooling system could be a blocked heater core.if flushing doesnt work remove and replace heatercore.

Nov 26, 2010 | 2002 Ford Taurus

1 Answer

01 ford expedition has no heat or a/c. replaced thermo and flushed it. any other ideas?


Assuming.......the fan switch works. You may have a blocked or leaking heater core. Hopefully you checked the thermostat before you put it in....you can heat some water up and put the thermostat in it to see if it opens. Not sure if there is a heater control valve in that ride, probably is, you may not be getting any water through it to allow water into the heater core.

Oct 11, 2009 | 2001 Ford Expedition

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

1996 GMC 1500 4X4 TRUCK- NO HEAT


I am going to assume that you checked to make sure the cooling system is full. The next thing to do is flush out the heater core. The easy way to do this is to clamp off the heater hoses with visegrips and remove them from the heater core. You will only loose the coolant that is in the core this way. Take a garden hose and try to backflush the core out until the water is clear. Being that you said you don't feel the inlet hose getting warm the chances are the core is completely blocked so it may take some working back and forth between inlet and outlet to dislodge anything in it. I have also had to use an air compressor to do it but you need to be very careful not to use too much pressure or you can rupture the heater core. Worst case is you will have to replace the core but I would try flushing it first. Hope this helps.

Jan 16, 2009 | GMC Sierra 1500 Cars & Trucks

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

79 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

76691 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8531 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...