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2003 chevy trailblazer_ltz
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48 Posts
Discussion Starter #1
Just a little information about my car: '03 TB LTZ 64,00 miles. I recently replaced the spark plugs and fuel filter. When I started the car, there's a semi-loud whistling sound coming from the oil dipstick. When I lift the oil dipstick an inch or so, the whistling sound goes away. But when I push the dipstick down all the way, the whistling sound comes back.

Any ideas what could be wrong??
Thanks in advance.
 

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2003 chevy trailblazer_lt
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6,568 Posts
when u pull the dip stick up can u feel any vacuum or air pressure going in or out of the tube?
 

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2003 chevy trailblazer_ltz
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48 Posts
Discussion Starter #3
when u pull the dip stick up can u feel any vacuum or air pressure going in or out of the tube?
Not sure. When I get off work tonight, I'll double check.
 

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2003 chevy trailblazer_ls
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1,708 Posts
When you replaced the plugs did you put the hoses etc. back on the intake pipes?
 

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2003 chevy trailblazer_lt
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6,568 Posts
yea check all the hoses and see if u can feel any airflow from the 710 tube... sounds like u got a vac leak or something...
 

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2003 gmc envoy_slt
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7,190 Posts
:iagree: Take the dipstick out and cover the hole with your finger or a vacuum gauge. You should feel suction. :m2:
 

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2003 chevy trailblazer_ltz
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48 Posts
Discussion Starter #7
yea check all the hoses and see if u can feel any airflow from the 710 tube... sounds like u got a vac leak or something...
I'll double check all the hoses, etc. tonight. Hopefully it's just something minor. Thanks again.
 
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