option zn4?

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Apr 21, 2012 | 01:10 PM

ChevySkeptic

Thread Starter

Beginning Member

Joined: Mar 2012

Posts: 19

From: durty south

option zn4?

I am just wondering how the heck I can tell if my 98 Blazer LT has option zn4 or not. I need a new a/c compressor and apparently it makes quite a difference.

Apr 21, 2012 | 01:39 PM

aa21830

Junior Member

Joined: Mar 2012

Posts: 293

From: Illinois

Glovebox. There's a sticker in there, should look something like this.

Apr 21, 2012 | 09:19 PM

AJBert

BF Veteran

Joined: Oct 2007

Posts: 2,871

From: In the Colorado mountains

What is zn4? Auto climate control or something along those lines?

Apr 21, 2012 | 09:27 PM

billfrank85

New Member

Joined: Apr 2012

Posts: 91

From: Willisville, Illinois

I think ZN4 means it is VIN'd for a different year than what it's actually built in.

Apr 21, 2012 | 10:24 PM

Captain Hook

Moderator

Joined: Mar 2009

Posts: 8,453

From: Belleville, Michigan

98 Blazer with a 4.3L uses the Harrison, (guaranteed to leak at the seam) HT6 compressor. Doesn't matter which HVAC system you have, HT6 is the compressor that was used.