Question about 1998 Chevrolet Blazer

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How do you take out the dash so i can replace my heater core Please help any info please

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This is no party, but can be done. There are about 5 bolts that go through the firewall. First remove the glove compartment, this will give you much better clearance to see. Some bolts come out from the out sid, some from inside I think they are around 7/16ths or ten mm's Asuming youve drained the radiator, remove the inside engine cover IF it has one. The rest will become obvious. Be very careful not to damage the inlet/outlet tubes when reinstalling. Let me know if this helped. P.S. you have to use a roll-out type process to get at the core. In other words you roll the whole unit bottom first towards you.

Posted on Jul 25, 2009

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This would mean you have water flow through the heater core. This would mean the water valves are allowing flow and that a lack of heat would be from a failure in the ductwork under the dash. A flap or "door" is simply not changing position to allow airflow by the heater core.

You can get an accurate diagnosis by using the self-diagnostics built into your Climate Control head. The head is your Display screen. There is a way of keying in an activation sequence for this test. You may be able to find the sequence online, but the Codes are in a different group specific to the Climate Control.

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Dennis, replacing a heater core is never easy on a car unless you can access it from under the hood. More than likely you will have to remove it from inside the vehicle under the dash on the passenger side. Removing it and installing it is the easy part. Getting to it is the hard part. It is just a matter of removing enough dash parts to gain access to the core. That is the hard part. This is why this is a very expensive repair as the majority of the cost is labor. The core itself it relatively inexpensive. Look under the hood and follow the heater hoses to the firewall. You will then know the location of the core and know if it can be removed from under the hood. If you have to remove it from inside the vehicle just slowly start taking parts of the dash off and go very slow. Take photos is necessary in order to remember how to put it all back together. Some dash panels will snap off and some will be held in place with a screw or clip. Be very careful and do not break and parts. You can do this if you take you time.

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Heater core

Depend of the Work that you want to do on your car.
But the commom are A/C evaporator Core and Heater core.

This prosses is Delicated due at the Caution of the Air bags System.
And Remove the Dash to Replace the Heater Core. Take aprox. 7.5 Hours labor.
And Remove and replace the Evaporator Core. take aprox. 5.6 Hours.
It's Not nessesary remove the Dash to Replace the Evaporator.


But if you THINK you can do.
I can GIVE TO YOU the Entire prosses to do.
But GIVE ME any EMAIL adress, to send the Info. if you want.

I hope this help on your question,
Thank you for use fixya..

Sep 14, 2008 | 2006 Mitsubishi Spyder

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