91 S10 Blazer Heater Core Removal - Chevrolet Forum - Chevy Enthusiasts Forums
Old July 22nd, 2015, 1:23 PM
How-Tos on this Topic
Last edit by: IB Advertising

See related guides and technical advice from our community experts:

Browse all: Interior
Print Wikipost

91 S10 Blazer Heater Core Removal

marge simpson's Avatar
CF Beginner

Join Date: Nov 2006
Posts: 2

November 23rd, 2006, 1:43 AM   #1  
91 S10 Blazer Heater Core Removal

My husband is in the process of trying to remove and replace a heater core on an '91 S10 Blazer, has anyone done this? He thinks might have to remove wheel housing to get at it right now. What experience is out there that may assist us?

70mopar's Avatar
CF Active Member

Join Date: Oct 2006
Posts: 247

November 25th, 2006, 1:30 AM   #2  
RE: 91 S10 Blazer Heater Core Removal

tell homer (hahahaha) that he doesn't even need 2 get @ any of the bolts 4 the outside of the box, everything is done from inside the cab. if your truck has A/C it's a little more work, but don't worry, it's all relatively simple. if your truck does have A/C, i've personally found it easier to remove the dash bolts on the bottom right, lower middle & the torx screws accross the top (inside the defroster vents) to allow the dash 2 b pulled out a little. remember this is my own personal experience, and since the first core broke right where the pipes r connected to the core 'cause i gave it that little extra push 2 get it past the bottom of the dash the first time, i pulled the dash the second time & have had no problems with it again (it's been 4 1/2 yrs. since i've done it the second time, only 11 1/2 months between the first & second time-and let me tell u, Feb. really sucks 2 do your heater core...TWICE!). there's also an access panel inside the glove box 2 get @ the top screws. when u reinstall the dash, put the torx screws in first (this will allow u 2 line up the dash with the screw holes more easily.

Search this Thread
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: