Question about 1992 GMC Safari

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How to change the heater core of a gmc safari 92 xt?

Engine 4.2

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Remove dashboard, remove hvac unit cover, replace heater core. About a 8 hour job with the correct tools. Good luck. Better get a service manual

Posted on Nov 15, 2014


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Posted on Jan 02, 2017


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How do you change a heater core in a GMC Safari van

This is an ugly job, and has many easy to break and hard to get parts inside the heater box. Let a qualified shop do this job.

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Follow your Upper Radiator Hose to the Motor. It will attach to a Bell Housing. Remove this Bellhousing and the Hose. The Thermostat is Underneath the Bell Housing. Please Rate My Response! Thanks!

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have the computer checked or inspect fuel injecters if all else fails fuel pump weak.

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