How to change heater core

Tiny
EDWARD POPE
  • MEMBER
  • 1996 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 210,001 MILES
I changed my radiator, water pump and thermostat and my truck still runs hot.
Could it be my heater core (I don't have heat in the winter) I was told by Fi_esto_e that the heads was bad.
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
Is the coolant leaking? Any smoke from exhaust? It could be radiator fan(s) not working, air in system, clog in system, cracked head gasket etc. If there is no leak of coolant (either visible wet spots or smoke) than it's probably a clog in the system, air in system or radiator fan(s) not coming on.
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
WRENCHTECH
  • MEMBER
No, the fuel pressure is an issue but not preventing it from starting. As long as you can keep it up around 60PSI when cranking, it will run. Make sure that pressure that you are losing isn't an internal leak fouling the plugs. The dash lights have nothing to do with that but being on when the engine isn't running isn't unusual.
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
EDWARD POPE
  • MEMBER
Now there is no smoke and no back splat from the oil and the oil is not milky
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
DODGEBOY71
  • MEMBER
Kool thanks will keep u posted
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
ALVINDEAN
  • MEMBER
  • 1997 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 25,000 MILES
How to replace the heater core in a 1997 Chevrolet Blazer?
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/261618_Noname_811.jpg

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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
CNASSEF
  • MEMBER
  • 1998 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 216,089 MILES
When I drive with the heater on it's only putting a small amount of wram air out if I have the RPM's up it;s warmer but when I idle it starts blowing out cold air how do I replace the heater core?
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
HMAC300
  • EXPERT
You might try a good radiator flush and then taking a hose and back flushing the heater core before going the trouble of replacing the core, especially if it's not leaking. You have to pull the dash out to get he heater core out on that model. Of course check to make sure that you have afull coolant as that will effect your heat if it is low. If itis then have your engine pressure checked as you may have a bad intake or head gasket.
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
CANIBEINYOURWORLD
  • MEMBER
  • 1993 CHEVROLET BLAZER
Heater problem
1993 Chevy Blazer Four Wheel Drive Automatic

how do you change the heating core of a chevy blazer. My uncle is trying to change one and he can't figure out how to get the old one out and the new one in.
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
GEARHEADWHIT
  • MEMBER
Go to autozone. Com and check their repair guides - it's free
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
DLOVE072257
  • MEMBER
  • 1998 CHEVROLET BLAZER
Heater problem
1998 Chevy Blazer 6 cyl Two Wheel Drive Automatic

Is there a site out there that would show me diagrams on removing the heat/ventilation module from under the dash.
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Thursday, December 27th, 2018 AT 8:17 PM (Merged)
Tiny
BMRFIXIT
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/99387_Graphic5_20.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_Graphic2_138.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_Graphic3_65.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_Graphic4_34.jpg



need manual CHECK IT @
http://www.2carpros.com/kpages/auto_repair_manuals.htm
_________________
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Thursday, December 27th, 2018 AT 8:18 PM (Merged)
Tiny
JBENNETT419
  • MEMBER
  • 1996 CHEVROLET BLAZER
Heater problem
1996 Chevy Blazer 4 cyl Two Wheel Drive Automatic

how do you change a heater core in a 96 chevy blazer
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Thursday, December 27th, 2018 AT 8:18 PM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/261618_Noname_1309.jpg

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Thursday, December 27th, 2018 AT 8:18 PM (Merged)
Tiny
SDREWS
  • MEMBER
  • 1996 CHEVROLET BLAZER
Electrical problem
1996 Chevy Blazer 6 cyl Four Wheel Drive Automatic 200k miles

my blazer had the heater core replaced sinse then none of my 4 wheel switches have power the fuses in the panel are good and the switch works on a test blazer what could this be
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Thursday, December 27th, 2018 AT 8:18 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
THe dash was removed to replace the heater core. Return to the shop and have them recheck their work. Chances are they left things disconnected.
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Thursday, December 27th, 2018 AT 8:18 PM (Merged)
Tiny
UHOHLISA
  • MEMBER
  • 1996 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 18,000 MILES
How do I change the heater core in my 96 blazer?
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Thursday, December 27th, 2018 AT 8:18 PM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/261618_Noname_1954.jpg

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-1
Thursday, December 27th, 2018 AT 8:18 PM (Merged)
Tiny
VROTO
  • MEMBER
  • 1997 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
How do I install the heater core on a 1997 chevy blazer s10 4 wd 4.3 engine
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Thursday, December 27th, 2018 AT 8:19 PM (Merged)

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