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2004 Chevrolet Impala bank 1 lean

Tiny
PICKLES1127
  • MEMBER
  • 2004 CHEVROLET IMPALA
  • 150,000 MILES
I have an Impala SS 2004, with a bank 1 lean issue. The car has been in the shop for a pretty extensive over haul. Replaced tranny, changed oil gasket, changed 2 O2 sensors, changed plugs and plug wires, change EGR valve, changed vac. Hoses at the top of the engine and change the valve that connects the engine to the vac. Hoses and brake unit (that round thing on the fire wall). The MAF was changed last year, and I don't think the car has really run correctly since then. ALL PARTS were changed with GM parts. The car does have an after market exhaust, system but it was made for the car.
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Wednesday, August 14th, 2013 AT 1:19 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check your fuel pressure firstwith a guage
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Thursday, August 15th, 2013 AT 7:40 AM
Tiny
PICKLES1127
  • MEMBER
  • 4 POSTS
Thank you, we are doing that today. The fuel filter was really stuck on I am praying that once we change that the light will be happy.
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Thursday, August 15th, 2013 AT 8:27 AM

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