Poor Accelaration

2002 LEXUS RX 300
165,000 MILES • 3.3L • V6 • 4WD • AUTOMATIC
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BRAXTONE
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At 20 - 30km/h, the car runs fine but can not go beyond 50km/h without making a huzzing sound and struggles to get to 60km/h. on these conditions, the rpm does not go beyond 2000rpm and it's not stable.
what could possibly be the cause?
Apr 19, 2016 at 8:06 AM
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HMAC300
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scan for codes and check fuel pressure with a gauge first auto parts rent it in USA
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Apr 19, 2016 at 12:34 PM