how to remove heatercore v6 -s10 truck

1 ANSWERS

1. amomipais82
   

   Hi,
   Well if you are diagnosing the heater core, the evaporator core does not get touched. They are two seperate units. The heater hoses that follow to the firewall should give you a general idea on the whereabouts of the heater core unit. It will be behind the firewall as will the A/c evap. core, but make sure it is the heater core. If you remover the evap core, yes you will need to replace the o-rings as well as get the system evacuated asap due to the chemical reaction from the R-134a and our atmosphere which turns it to acidic. In laments terms, your A/C o-rings throughout the system will be at risk for deteriation. You will need a gallon of 50/50 antifreeze, check the heater hoses for cracks and interior condition as well as the hose clamps before removal. After you remove them you will have drained your heater core of antifreeze and you will be ready to remove it.

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