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- No heat in 90 gmc 2500 van
December 2, 2006, 11:08 pm
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I am having a problem with my van. I am getting basically no heat. This is
not just heat inside the van. the heater core is fine, just repalced about a
year ago, coolant flows through fine. What I have noticed though is that the
whole system does not warm up. For example, yesterday I drove it for about
5 - 6 hours, and the radiator cap was only warm. It was NOT hot, I could
basically hold my hand on it. I have replaced the termostat, and the rad
Any other suggestions?
BTW- 4.3 L V6 engine.
Re: No heat in 90 gmc 2500 van
heater core Good heater performance is a function of the correct temperature range
T-stat. Check the new stat and see what degree it is. It should be at
least a 190=B0 unit for good heat. Also make sure the new cap is the
correct psi range too.
Hope this helps
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