Air Conditioner Smell...

For a couple of days I have smelled something like fish coming from my air conditioner... Please help.. this is progressively getting worse..

For a couple of days I have smelled something like fish coming from my air conditioner... Please help.. this is progressively getting worse..

What year make and model?
Does it have a cabin filter?
Is your drain stopped up?

2002 Blazer Extreme
Not sure
Not sure

How would I check or know those things?

I did notice that today when I turn off my A/C I mist comes through the vents.. Kind of looks like smoke but doesn't smell like smoke... Just kind of like fish food..

Come to think of it... I haven't seen much drainage.. That might be it.. how would I check?

The "fish smell" is old coolant leaking from your heater core.
That also give the fog/mist on windscreen.
You will get coolant on the passenger side floor, under dash, when leak get worse...

I've changed mine twice, so I think I recognice the signs :banghead:
Get it fixed ASAP, it wont get better by itself. You have to remove the dashboard so if you got the $$ leave it to a shop...

Check this thread for how to change it...
" 98 Blazer heater core replacment (I just did it)"
http://www.automotiveforums.com/vbulletin/showthread.php?t=368427

/Freddy


PS. Can also be a leak at the hoses attached to the heater core, in engine compartment, like said in this (http://www.automotiveforums.com/vbulletin/showthread.php?t=741862&highlight=heater+core) thread

If in fact you do have a leaking heater core, you can buy a small plastic piece and "Jumper" your heater hoses together. The small plastic piece is only a couple of bucks at Autozone and accommodates the two different sizes of heater hose found on GM vehicles. Remove both Heater hoses at the Firewall and "Jumper" them together using two hose clamps and the plastic piece. Then Top off your antifreeze and you're good to go. You won't have any heat of course, but you won't be leaking or smelling Antifreeze.