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Chevrolet Impala Check Engine Light Due to Vacuum Leak in EGR Tube

 
Chevrolet Impala Problem
30 Reports
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Model Years Affected: 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008

Exhaust & Emissions Affected: 3.8L V6

Average Mileage: 120,131 mi (16,580 mi - 181,000 mi)

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The exhaust gas recirculation (EGR) tube which connects the EGR valve to the intake manifold may develop an engine vacuum leak, causing the Check Engine Light to illuminate with code P0171 and/or P0174 stored.

  • , , 16,580 mi

    I have changed the EGR Valve about 3 times and it's still saying The EGR Valve is open

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  • Check Engine Light Due to Vacuum Leak in EGR Tube

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  • CHECK ENGINE LIGHT COMES ON AND OFF RANDOMLY, HAD IT CHECKED AND IT GAVE THE EGR CODE, NO PROBLEMS WITH THE CAR THOUGH LIGHT NOT ON ISSUE NOT FIXED

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  • , , 181,000 mi

    Check engine light on. Vaccum leak

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  •  Rookie

    for a year and half check engine light has been on reading the same code even though it's been repaired

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  • , , 71,254 mi

    I hear air hissing when im up under the hood of the car haven't fix problem yet

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  • , , 122,000 mi

    Check engine light came on and nothing happened for awhile. After a few months, the engine started making really loud sounds, like I was revving the engine, when my foot was not on the break or gas pedal. The noise has gotten progressively louder.

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  •  Rookie

    same problem. EGR valve bad. Had to replace 2 times before was fixed

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  • , , 79,000 mi

    Egr tube leaking at manifold. If I spray carb cleaner where it bolts to intake engine speed up. Also gave code p0171. Drove me crazy.

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  • , , 170,000 mi

    Had to get EGR valve cleaned. Check engine light was on. Engine would cut off when at stop light. According to mechanic the EGR valve was getting stuck open when it should be closes when Im at a stop. Because it was stuck open, engine was not getting the right air/fuel mixture cause it too shut down

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