11-21-2006, 02:13 PM
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AF Enthusiast
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Join Date: Jan 2005
Posts: 507
Thanks: 0
Thanked 2 Times in 1 Post
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Re: S-10 blazer, no heat, challenge yourself on this one!
I would assume its the thermostat.
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Originally Posted by Theevinman
Thank you in advance. Here goes. Own a 2004 Blazer, last model made in the s-10 model? Anyway,I had no heat. Opened the radiator, discovered 'mud'. I drained and flushed all lines....started it and 'great success', heat again....for a little while then cold air, no heat. Hmmm....blocked heater core I think...again flush heater core (with hoses detached), in one side with the hose, flush water thru till clean water comes out other side, and reversed it just to make sure. Wallah, heat.....for a lil' while then nada, cool air again. Invested time and more money in a flush 'system', did it till, no doubt, clean water everywhere-it is as flushed as it will get!!! There can not be any clogs! Sometimes the inlet hose would be noticeably hotter than the 'return' hose so I started blazer and disconnected both hoses from the heater core to see...... There was no coolant going into the heater core, nor any coming out!!! Now what?? I assume, that sometimes there must be coolant making its way into the core, but then eventually stops. What's up? Be advised the temp gauge remains at normal the whole time no matter what is happening, it is not stuck however, it seems to be operating normally. TY |
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doing a job? take digital pictures before and after!
helps you for reinstallation, and everyone else who will do the job later!
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