QuestionHi Van -
I have a 1994 Suburban 4 x 4 1500 with a 5.7 l. engine. The heater core under the front passenger side dash is leaking fluid into the cab and the heater no longer works. My boyfriend plans on replacing it and purchased a new heater core. The parts store asked him if the Suburban needed just the one in the front or if there is another heater core located for the back seats. We cannot find this information. Do you know if we need one or two heater cores? Also, approximately how long will it take to replace? Is there a good repair manual you can recommend to use to fix this? I really appreciate your help!
AnswerHello Laura,
Weather it has a rear heater core or not makes no difference to replacing the front one. Tell them the front one is the one leaking.
If you have auxilary heat in the rear seat area, with a separate blower motor back there, you would have a rear heater core.
Now...some of the cores up front there have room to remove them out the bottom of the heater housing, and some don't.
If there is not about five inches between the heater housing and the driveshaft hump, and an access opening that comes off the bottom, then you may want to have someone else do the job, cause the dash needs to come apart.
If you do have that access panel, I have heard of people replacing the core in about an hour.
Here is a link to a Suburban Q&A forum. Go check it out. It is free.
http://www.chevytalk.org/threads/dosearch.php
Van
