2.4L Performance Tech 16 valve 172 hp EcoTec with 162 lb-ft of torque

engine oil filler tube rusting?

Old 07-12-2009, 06:46 PM
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engine oil filler tube rusting?

We just bought our HHR last week and did an oil change, when we pulled the cap off the metal on the cap and the inside of the tube itself were covered in rusty powder.

Has anyone else had this ? Is this caused by something other than water getting in or...?

TIA
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Old 07-13-2009, 01:22 PM
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Question engine oil cap rusty

Isnt the oil filler cap plastic?
Been awhile since I changed my oil,
so forgive me if i am having a senior moment.
Maybe something other than rust...?
Did you buy the car used? must be, otherwise why r u changing the oil..?
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Old 07-13-2009, 02:11 PM
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Rust?
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Old 07-13-2009, 02:16 PM
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My filler cap and the tube that raises it up through the factory intake box is plastic...
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Old 07-13-2009, 03:08 PM
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Originally Posted by txbass06
My filler cap and the tube that raises it up through the factory intake box is plastic...
Same here.
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Old 07-13-2009, 05:21 PM
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Leave it to the "old GM"....

Plastic that RUSTS!!
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Old 07-13-2009, 05:25 PM
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Send a sample to this place. They will tell us all what it is! They will send you a FREE test kit to sand back to them....

http://www.blackstone-labs.com/
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Old 07-13-2009, 09:33 PM
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Rusting plastic? That's why I decided to find out if anyone else had it happen. Doesn't appear to have any water damage to it or the engine (looks and runs great) but my wife suggested that maybe someone didn't tighten it properly and the rust is merely 'hanging on like fungus."

This stuff is covering the inside "plug" of the cap and the entire interior of the tube. It's is orange (rust colored) and powdery and has the same texture as rust (looks identical to some metal I have that is rusted. If there is something else that <i>mimics</i> rust, then maybe that's what it is.

We did get it used (2006) and its previous 1 owner had been in MT, CO, and WY.
We are having it replaced, but were just curious. This is the car my wife is driving and so far we like HHR very much. We're still thinking up a name.

Thanks - if the dealer can't figure it out when they replace it, I'll take a look into the test kit.
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Old 07-14-2009, 05:39 AM
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But neither plastic or oil will rust......
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Old 07-14-2009, 11:59 AM
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You should name it "Rusty"
Its a long shot but maybe the previous owner put in sometype of additive in the oil for whatever reason and this rust like stuff is it splashed up into the tube. Hey I said it was a long shot.
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