Question about 2000 Volkswagen Passat 4Motion

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Have a 2000 Passat V6 4Motion with 74,000 miles. Recently purchased from original owner. Engine idles erratically when cold (altrernates between around 1000 and 1200 rpm). The engine also hesitates and surges on acceleration. Any ideas? Car seems to run fine other than low rpm issues.

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Coolant temperature sensor could be faulty, making fuel mixture too lean. will hesitate and feel flat until warm.

Posted on May 13, 2010

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