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2004 silverado with antifreeze smell


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tadsdad
New User

Dec 3, 2009, 6:06 PM

Post #1 of 6 (5666 views)
2004 silverado with antifreeze smell Sign In

well like it says, recently i've been getting an antifreeze smell after driving anywhere. and only having to add fluid every once in a while. i haven't noticed any leaks and not finding any in the oil. btw, it is a 4x4 with the 5.3 engine. not sure which direction to look. anybody got any ideas, not even sure if it is a common problem with this model.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 3, 2009, 7:15 PM

Post #2 of 6 (5659 views)
Re: 2004 silverado with antifreeze smell Sign In

There is only one way this can be approached and that is to pressure test the cooling system. The leak will eventually appear. If you can smell the coolant, that means it's an external leak.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



tadsdad
New User

Dec 3, 2009, 7:40 PM

Post #3 of 6 (5652 views)
Re: 2004 silverado with antifreeze smell Sign In

i did kinda figure that, i'll catch a buddy at his shop tomorrow and get that done, thanks alot. you know i've been tinkering with cars and trucks before i was even driving (30+ years) but when i go to reading through posts hoping i might be able to help someone, appearantly i'm further out of the picture than i thought. but i'm here to help if i can. Thanks again


Sidom
Veteran / Moderator
Sidom profile image

Dec 3, 2009, 10:30 PM

Post #4 of 6 (5646 views)
Re: 2004 silverado with antifreeze smell Sign In

Make sure to check out the RR corner of the intake manifold area real good.


tadsdad
New User

Dec 6, 2009, 9:57 AM

Post #5 of 6 (5634 views)
Re: 2004 silverado with antifreeze smell Sign In

thanks guys, ive ran into a friend of mind in the parts store that runs a university garage and he"s going to look at it for me. he mentioned the water pump on those models and also mentioned that it was hard to detect until they get worse. thanks again


steve01832
Veteran
steve01832 profile image

Dec 6, 2009, 10:09 AM

Post #6 of 6 (5633 views)
Re: 2004 silverado with antifreeze smell Sign In

tadsdad, the easy way to see if the water pump is the culprit would be to look at the "weep holes" on the body of the pump. If there is coolant, or even a stain or corrosion, the pump is suspect.

Steve






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