Hello i have a 00 S10 2.2 with no heat.I have flushed out and put in a new thermostat and stillno heat.It does not over heat it sit about halfway from 210 and cold. Iread somewhere that you can flush the heatercore but im not sure how.


Any help would be great


Thank you

Brad

 

Howdy, 00s10 and[sm=welcomesign.gif]. You did not say if the blower motor works,so check your fuesses, there is a sensor on the manifold by the thermostat neck that dose go bad or the sensor wire could be loose . To flush the heater core you disconect the hoses leading to it, make sure the motor is cold.Thier is an inlet and outlet hose, once disconected flush out with garden hose. The Haynes manual is very helpfull, any parts store has it.

 

i do have the haynes manual but its really not helping me or im not reading it right its blows cold air all the time and sometime after long trip i get some heat but it has to be on setting 1 any higher and it gos cold again (10 mins). i see the intel one but im not sure where the outlet one is there is one right next to it but i looks like its coming from the a/c but idk.

ty for your help sickvortech1

 

Howdy, Did ya check the fuesses to the heater? I dont think its anything related to the heater core, when they go bad they ether rupture hoses or leek onto the floorboard and stink of antifreez. Have a local parts store run a scan on your truck for Free to see if any coads show up, and descibe to them about the no heat situation. In my educated guessits ether a fuse or the Thermostat sending unit. Im a DIYer with 30 plus year exp.
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Brad
Hey had the same problem did you flush at the heater core. I did it this evening and it worked perfectly heat is like new again here are the directions in the attachment I wrote up for the process if your interested.
Good Luck,
Kyle


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Keywords: Chevy, Blazer, s10, heater, core, heatercore, no heat, heat, cold, flush, clog, 99, 00, 01, 02, 2001, 2002, 1999, 2000

 

yeah i did that today and it works now!!!! thank you guys for all your help sickvortech1 kunitt907