2001 Lincoln LS vacuum leaks

Tiny
ROZZZ9
  • MEMBER
  • 2001 LINCOLN LS
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 71,000 MILES
Codes p0171 and p0174 and p0303 changed mass airflow sensor, oil and filter spark plugs, fuel filter, icd, o2 sensors on both sides. I hear a leaking like hissing noise when I start the car and it continues, car eventually idles up and down then dies. What is this
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Sunday, September 26th, 2010 AT 1:31 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • EXPERT
A hissing noise normally indicates a leaky vacuum hose. Where is the noise coming from? Engine compartment etc?
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Wednesday, October 20th, 2010 AT 9:22 PM

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