Question about 1994 Isuzu Pickup
Im tring to remove the dash to access the heater core. The dash is loose at the bottom and I cant get the top loose to access the heater core.
You'll have to remove the dash in layers. The heater box is the last thing you actually get to. It's not a fun job. It's a very time consuming job. I believe "book" time on that job is around 8 hours. Even guys like me that have done these before take longer that what "book" times is.
Posted on Jun 25, 2008
You need to buy a repair manual first. You must have the feon removed, because you must disconnect the AC lines from the evaporator, It took me about 4 hours. The screws are under the dash at each end plus in the middle there is a support brace bracket.
Posted on Feb 01, 2009
SOURCE: need to replace the heater core
Under the dash for sure, but you may need to drop the whole box and may be mounted with bolts from the engine compartment. You will need to disconnect the hoses from the core from under the hood
Posted on Mar 26, 2009
If the dash is removed you've saved about 9 10ths of the job endurance. Look around, what you believe to be, the perimeter of the heater box. I cannot, and no one else can, tell you exactly where the bolts and nuts that mount the heater box are. Therefore you must viually sixe the box and check outide in the engine compartment and inside under the dash for the mounting bolts.You'll want to start by removing the heater hoses. Then starting at the passenger side engine compartment look for a group of 10mm or 7/16ths nuts retaining the housing and remove them. Do the same inside. The housing is usually held together with screws or clips, it changes year to year. Keep a log or pix of the wires and cables and hoses(vacuum) that are connected to the housing for reassembly. You'll need to "roll" the box out from under the dash depending on how much of the dash has been removed. The core is easy to spot for is has two hoses sticking out, and, is encircled with clips or screws . Also make sure you remove the bracket around the two entry hoses if it has one. Thank you, Dana
Posted on Oct 04, 2009
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