1996 chevy blazer, need to change the heater core. Can someone point me in the right direction or give me a diagram?

You may need a thermostat and a coolant flush but one thing you can try first is disconnecting the heater hoses and run a garden hose with low pressure through the heater core both directions.These are commonly known to get plugged heater cores. If flushing the heater core out brings your heat back definitely get a coolant flush. Make sure to dispose of any antfreeze properly.

It will have a diagram right above the fan blades to show you how it needs to be ran. Just need to release some pressure off the belt tensioner to make it all fit

Hi,

Please check this webste:

http://www.youtube.com/watch?v=687B2pspF2w

Please accept if this helped you.

Thanks

Hi:
I have changed out a heater core on a Blazer like yours and while it isn't extremely difficult, it is quite a job, as you need to remove the dash to do so.

If you need some guidance, I would suggest that you spend about $20 and get a subscription to :
www.alldatadiy.com

It helped me on all of the cars that I had, and has step by step instructions, as well as printable diagrams and pictures.

the idea of the switch is run on vacuum and is not making contact with the switch it self either worn contacts in the switch itself **** as an obstruction as well or the vent door is stuck in just that position either behind the glove box or the ash tray are the vacuum lines one of them may be pinched off or the door needs a bit of help until you can free it up

I believe all your major auto parts stores have web sites with instructions and diagrams to help you with your project.

I have a 1996 blazer, tried to replace the core myself also, but the dash has to come off. Take it to the shop.

if you go to autozone.com and look up part. click on the repair and install at top of page...please let me know if this was any help

Autozone or other auto part stores will have books

how can i replace a heater core on a 95 chevy blazer