No heat in 90 gmc 2500 van

Dec 02, 2006 2 Replies
T

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 cap.


Any other suggestions?


BTW- 4.3 L V6 engine.



Thanks


Vote
Twitter Facebook LinkedIn
P

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

Dave S(Texas)

Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required