Stinky smell from Bonnie ?? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-26-2002, 11:39 AM   #1
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Default Stinky smell from Bonnie ??


Well... I noticed a slight ordor from my cars vents when in use... kinda smells like rotten eggs ?? I don't know if that'* a sign that the head gasket is leaking coolant in or if it'* the heater core A/C radiator that needs cleaning... any suggestions ??

P.*.
Mine is a 97 Bonnie SSEI */C with series 2 block..
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Old 08-26-2002, 02:23 PM   #2
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usually on mine it'* the brakes since i'm hard on them.
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Old 08-26-2002, 02:50 PM   #3
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Sometimes the A/C causes this. There is a spray you can get at the dealer I think that clears it up. Maybe deathrat is more farmilliar with it.
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Old 08-26-2002, 02:56 PM   #4
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If it'* the brakes.. excellent... I have to replace them anways... if it'* the AC.. that'* great too.. .. in a way... at least it'* cheaper and I can do it at home then having to replace head gasket...
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Old 08-26-2002, 11:43 PM   #5
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even though my brakes smell a lot, it hardly necessitates a need for replacement.
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Old 08-27-2002, 12:40 AM   #6
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It might be related to the exhaust system. If the engine runs lean for a while, then suddenly rich, the resulting chemical change in the cat will make a sulfur smell. How'* your O2 sensor?
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Old 08-27-2002, 01:11 AM   #7
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I vote with Teuobk, I would guess it'* running lean. Chryslers from the early and mid 70'* with their Lean Burn system would smell like that alot.
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Old 08-27-2002, 09:38 AM   #8
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Quote:
Originally Posted by Terminator
Sometimes the A/C causes this. There is a spray you can get at the dealer I think that clears it up. Maybe deathrat is more farmilliar with it.
The drain in the heater box is plugged! The AC Evap Core dehumidifies the air as it passes through the core. This water byproduct drips to the bottom of the heater box & exits out of the drain tube. When that tube gets blocked (by a leaf or simular), then it collects there & eventually gets moldy. This mold is what you are smelling in the interior! There is products out there that will get rid of the smell once that blockage is removed.
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Old 08-27-2002, 10:32 AM   #9
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Quote:
Originally Posted by DeathRat
Quote:
Originally Posted by Terminator
Sometimes the A/C causes this. There is a spray you can get at the dealer I think that clears it up. Maybe deathrat is more farmilliar with it.
The drain in the heater box is plugged! The AC Evap Core dehumidifies the air as it passes through the core. This water byproduct drips to the bottom of the heater box & exits out of the drain tube. When that tube gets blocked (by a leaf or simular), then it collects there & eventually gets moldy. This mold is what you are smelling in the interior! There is products out there that will get rid of the smell once that blockage is removed.
Can you tell me where abouts that is ?? and how I can go around cleaning it ?? I"ve heard that Oven cleaner works well for it ?? ( I don't know.. kinda corrosive ain't it ).
Thanx Deathrat... you rock !! . Thanx for all the input guys.. I have to true the rotors and change the pads ( starting to squeak and squeal.. but goes away as soon as you touch the brakes )..
I don't think the o2 sensor is shot... wouldn't it give an error code if it is ??
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Old 08-27-2002, 08:41 PM   #10
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Quote:
Originally Posted by Drifter420
Quote:
Originally Posted by DeathRat
Quote:
Originally Posted by Terminator
Sometimes the A/C causes this. There is a spray you can get at the dealer I think that clears it up. Maybe deathrat is more farmilliar with it.
The drain in the heater box is plugged! The AC Evap Core dehumidifies the air as it passes through the core. This water byproduct drips to the bottom of the heater box & exits out of the drain tube. When that tube gets blocked (by a leaf or simular), then it collects there & eventually gets moldy. This mold is what you are smelling in the interior! There is products out there that will get rid of the smell once that blockage is removed.
Can you tell me where abouts that is ?? and how I can go around cleaning it ?? I"ve heard that Oven cleaner works well for it ?? ( I don't know.. kinda corrosive ain't it ).
Thanx Deathrat... you rock !! . Thanx for all the input guys.. I have to true the rotors and change the pads ( starting to squeak and squeal.. but goes away as soon as you touch the brakes )..
I don't think the o2 sensor is shot... wouldn't it give an error code if it is ??
1) Drain Tube is located at bottom of firewall on passenger side below heater box. You can access it only from underneath the car though. The other option is too remove the blower resitor on the top of the heater box. You can do this by first unbolting the relay brackets from the firewall.
2) Don't use Oven Cleaner unless you want to rebuild your AC system! Brake kleen works great for the debris on the evap core & spray 9 works great on the heater box to get rid of the smell. Lysol will work too BTW.
3) If the O2 is shot then a code WILL be set & the CES light WILL come on. The O2 sensor will always throw either a lean code or rich code when failed. The first symptom of a soon to fail O2 sensor is lousy gas milage.
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