Mickey Maz Posted October 29, 2014 Share Posted October 29, 2014 Carbon monoxide is getting into car from the heater system as best I can determine. I had Subaru dealer check and they can't figure it out..plus I had a local mechanic look at car. Both checked exhaust system for leaks..none. There are no codes showing. With the air circulation on or the air conditioner it seems OK. I was feeling sick when in the car so I put a carbon monoxide detector on front seat with heater blower on and the alarm went off. Anyone have any ideas?? Link to comment Share on other sites More sharing options...
Gloyale Posted October 29, 2014 Share Posted October 29, 2014 Some kind of leaking fluid is getting onto the exhaust. Could be oil leak, Power steering, or CV boot grease. The fluids burn on hot exhaust, and then the smoke is pulled into the car. (vent system draws air from the cowl area just behind the hood) Link to comment Share on other sites More sharing options...
CNY_Dave Posted October 29, 2014 Share Posted October 29, 2014 If a CO alarm is going off, I'm going to assume that must be an exhaust leak. Check the entiore exhaust carefully. Link to comment Share on other sites More sharing options...
Bushwick Posted October 29, 2014 Share Posted October 29, 2014 (edited) It could be a PCV hose leaking. I vented mine to atmosphere in another car and the heater would pull the fumes into the car. Not enough to get sick from, but enough I could smell it. The odd thing is I've had older cars with V8's that vented to atmosphere and yet the fumes never entered. I'd insist the mechanics look it over again. If it WAS exhaust, you'd have a noisy leak + plus you'd probably be dead by now. Also, don't drive it if it's enough to get "sick" from and by all means, roll the window down if you must move it. Edited October 29, 2014 by Bushwick 1 Link to comment Share on other sites More sharing options...
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