My 97 blazer has started to leak engine coolant inside.... its in the middle runt under the dash, ive taken away some parts but not been able to see where it comes from.

Is there a cooland line somwhere around there?

edit: after reading https://blazerforum.com/forum/showthread.php?p=24925 can it be the same problem i have ?

 

Looks like your heator core is busted. Thats what would normally cause a coolant leak inside. Tell me, do you have any heat? Try turning your heat on full blast and see if it is just slightly warm, hot, or totally cold. If it's warm/cold you can be sure your heator core is cracked. I've heard they are a pain to replace in these trucks (just based on where they are located) and it's a few hour job. Not sure though since I've never done one myself.

 

hehe, i guess its that then, i got only hot air coming from my vents, ac on max still only flows hot air

 

yeah, it's definitely your heater core.

 

About 3 years ago i replaced a heater core in a '95 Blazer, I doubt it will be that different, its not a hard task just time comsuming as the whole dash has to come out, I said a few choice words and lost a little religion when I did mine, just take you time and get a Chilton or Haynes manual if you dont have one, and dont expect it to take a few hours, it took me about 6 or 7.