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Pete
Dodge Dakota
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1/24/2005
15:40:07

Subject: Catalytic Converter and Heater Core?
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Unfortunately I have started to smell the rotten eggs after the truck warms up, it goes away after a couple of minutes. Any ideas on cleaning one out before I attempt to replace it, and shouldn't it be throwing a code?
I am also smelling the sweet smell of antifreeze, but only when the truck is warming up and the smell is more eveident when the heater is on. Nothing is leaking, and I'm not losing any fluid, but I can still smell it. Is it a hint the heater core is about to leak all over my feet? Let me know your thoughts. Thanks.



Pete
Dodge Dakota
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1/25/2005
10:06:11

RE: Catalytic Converter and Heater Core?
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Bueller....



TONY
Dodge Dakota
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1/25/2005
10:39:20

RE: Catalytic Converter and Heater Core?
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WHAT KIND OF STUPID SAYING IS BUELLER?



Pete
Dodge Dakota
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1/25/2005
14:48:56

RE: Catalytic Converter and Heater Core?
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You know, like Ferris Bueller, from the movie. Nevermind.



spt
Dodge Dakota
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1/25/2005
14:53:41

RE: Catalytic Converter and Heater Core?
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For the cat, try putting a bottle of throtle body cleaner through while the engine is running.
Heater core, look at where the hoses attach to the core from the motor and make sure the clamps are tight, if they are loose antifreeze may drip into core area and make that smell. If not prestone makes a good stop leak sealer.



daddio
Dodge Dakota
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1/25/2005
15:35:25

RE: Catalytic Converter and Heater Core?
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if you are smelling antifreeze, you are losing coolant. may be very little but it has to be leaking somewhere. can you smell it outside the truck as well? i know a lot of 3.9's '00 & up have some t/stat housing gasket leaks. i know mine did. wouldn't leave any fluid on the ground but you could smell it and coolant would get low every week or so.



Pete
Dodge Dakota
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1/26/2005
08:36:18

RE: Catalytic Converter and Heater Core?
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Thanks, I'll do a search to see where I can put the cleaner through the engine.
I can smell it with the hood open too, I'll check the housing and those hoses. Thanks guys.



spt
Dodge Dakota
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1/26/2005
15:09:46

RE: Catalytic Converter and Heater Core?
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You put the cleaner through the throtle body while the truck is running. It comes in an aerosol can and you spray it in. The can has instuctions.



daddio
Dodge Dakota
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1/26/2005
16:01:36

RE: Catalytic Converter and Heater Core?
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pete, what year & how many miles? just curious. if you are under 8yr/80k i think the emmisions warranty will cover the cat.



Pete
Dodge Dakota
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1/26/2005
17:13:32

RE: Catalytic Converter and Heater Core?
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daddio, Unforunately it is a 97 with 82K miles.

spt, I thought you were talking about using some seafoam stuff. I also thought cleaners clogged up the cat if anything.



Tom
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1/26/2005
22:26:19

RE: Catalytic Converter and Heater Core?
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Been there (recently), done that! Agree w/ pervious posts. Thermostat housing likely culprit. Climb up w/ good flashlight and follow upper radiator hose to thermostat (pipe) housing, and see if you've got a mass of gunk around the base of the thermostat housing, where the gasket is leaking.... Repair; replace thermostat & gasket. that's the easy part....

It's insidious. You'll be leaking coolant, but not finding any on the ground, because it's boiling off the manifold. But your coolant reservoir will be steadily dropping.




Bob Lincoln
Dodge Dakota
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1/27/2005
08:21:43

RE: Catalytic Converter and Heater Core?
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Another remote possibility is a leak at the water pump, especially the weep hole. It might boil off there, too, if the leak is small.



actually
Dodge Dakota
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1/27/2005
19:41:40

RE: Catalytic Converter and Heater Core?
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Nothing is leaking,
wrong wrong wrong,what you got is a very tiny pin hole that lets just a little bit of coolant mist out and evaporate before you can find it laying in a puddle, your core is leaking dude and it is only gonna get worse.



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