Question about 1999 Chevrolet Lumina

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How do I get to the heater coreon a 2001 lumina 3.1

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  • Chevrolet Master
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It is in the air flow box. This surgery is not reccomended for those unfamilliar with it. It is delicate and VERY easy to damage air control doors... And the job is not fun. Have a shop do this for you. Soooo easy to kill hard to get parts....

Posted on Oct 05, 2009

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Will heater core on 1995 lumina and 1994 lumina interchange


The easiest way to see if a part will cross to other vehicles is to use an online parts store. Napaonline.com, autozone.com, oreilly's.com, etc. look up the part for the 95 and then check to see if the same part is used for a 94.

Oct 05, 2014 | 1995 Chevrolet Lumina

1 Answer

How do i change 92 chev luminas heater core


It is probably not the heater core do to most times when the heater core goes bad it stars putting water into the interior of the car. It may be the heater core supply valve or the blend door actuator is not working. Try warming the Vehicle, then carefully feel the heater hoses, are they both hot? If one is cooler than the other, You need to flush the core, or do a replacement job on the heater core. Also if the system has a heat control valve on the heater hose, make sure it is working! Also check the thermostat, and the temperature blend door, thats under the dash, in the heater plenum. You can flush this yourself, buy the prestone flush kit and install the tee in the heater return line. Disconnect the heater hose at the waterpump, clamp the hose in back of the tee you installed and back flush till it runs clear.20 mins or so.

Sep 15, 2014 | 1992 Chevrolet Lumina

1 Answer

How do you change 1992 chev lumina heater core


if the coolant level is at the proper level and the thermostat is good then before you pull the heater core out you can try disconnecting the heater hoses and drain or blow out as much coolant out of the heater core then connect separate hoses to the spigots and fill the heater core with CLR and let it sit for an hour before draining then flush out with water and repeat if necessary this sometimes works and you won`t have to remove the heater core.

Sep 15, 2014 | 1992 Chevrolet Lumina

1 Answer

I have an 1992 chevy lumina antifreeze is leaking from the bottom of the firewall


You have a coolant leak, either in the heater core, or from the heater hose that feeds heated coolant to the core.

Aug 31, 2011 | 1992 Chevrolet Lumina

1 Answer

Need to replace heater core on 1997 Chevy Lumina


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 23, 2010 | 1997 Chevrolet Lumina

1 Answer

I changed the water pump thermostat and heater core and still no heat what else can be wrong 1996 chevy lumina car


1)Air trapped in system
2)plugged radiator
3)collapsed heater hoses while engine is running
4) heater control valve
5) blend door motor for hot/cold (VERY COMMON)

Jan 30, 2010 | 1996 Chevrolet Lumina Mini

3 Answers

CHEVI LUMINA 2001 HEATER failing...might have slow dex-cool leak


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.

Flush the heater core 2-3 times, and if the obstruction does not clear, a new heater core is required.

However in your case, a cracked head is suspected - this will give out a plume of white smoke on startup - There is no smell, carpet dampness, or abundant moisture in the cabin? (this warns of a leaking heater core)

The coolant is leaking through a gasket or crack, and entering the combustion chamber. You dont see a leak on the ground because it is being burned up with the fuel.

Good Luck, and thanks for using FixYa - A FixYa rating is appreciated!!

Jan 26, 2009 | 2001 Chevrolet Lumina

1 Answer

1992 lumina smokes out of heater, consumes more gas


your heater core has probably sprung a leak.does the smoke smell kinda sweet?....check the floor in the front where the floor mats are for moisture or even puddles of antifreeze.(the replacement of a heater core can be very expensive as the entire dash usually needs to be removed to access the heater core)also look under the engine near the firewall for antifreeze drips.

Dec 29, 2008 | 1992 Chevrolet Lumina

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