2008 GMC Yukon Denali

Asked by Apr 14, 2017 at 10:04 AM about the 2008 GMC Yukon Denali AWD

Question type: Maintenance & Repair

Hi,
I have a 2008 GMC Yukon Denali 6.2 L V8. After replacing a oxygen sensor, belts, Spark plugs, air filter vent valve, harness. It threw another code 2 codes P069E and P0191 all having to do with Fuel pump. Where do I start and what could it be? Want to start with the least expensive! It sounds crappy when start up and and then when you get going faster its better. when you come to a stop it sounds a little hestitant.

Please help,
Thank you

1 Answer

73,765

P069E GMC - Fuel Pump Control Module Requested MIL Illumination...Possible causes; Faulty Fuel Pump, Faulty Fuel Pump Control Module, Fuel Pump Control Module harness is open or shorted, Fuel Pump Control Module circuit poor electrical connection...P069E CHEVROLET Description; The fuel pump control module uses the serial data network to signal the Engine Control Module (ECM) that the fuel pump control module is requesting malfunction indicator lamp (MIL) illumination. A DTC is set in the fuel pump control module, and the request for MIL illumination is sent when the fuel pump control module determines that a failure that affects emissions has occurred in the fuel pump control system. When the ECM receives the message from the fuel pump control module, DTC P069E will set in the ECM.......P0191 GMC - Fuel Rail Pressure Sensor Circuit Range/Performance...Possible causes; Low or no fuel, Faulty Rail Pressure (FRP) Sensor, Faulty Rail Pressure (FRP) harness is open or shorted, Faulty Rail Pressure (FRP) circuit poor electrical connection, Faulty Fuel Pump...Description; The Fuel Rail Pressure (FRP) sensor has a 5-volt reference circuit, a signal circuit, and a low reference circuit. The Engine Control Module (ECM) monitors the voltage on the FRP sensor circuits. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low. The fuel pressure regulator has a solenoid supply voltage circuit and a solenoid control circuit. The ECM controls the fuel pressure regulator, which regulates high pressure fuel that goes to the fuel injector rails and the injectors.

Your Answer

GMC Yukon Experts

  • #1
    clayduster71
    Reputation
    2,700
  • #2
    David Boccabello
    Reputation
    870
  • #3
    Drpsychmom
    Reputation
    690
View All

Related Models For Sale

Used Chevrolet Tahoe
653 Great Deals out of 39,510 listings starting at $1,000
Used Cadillac Escalade
208 Great Deals out of 11,135 listings starting at $2,000
Used GMC Yukon XL
237 Great Deals out of 13,648 listings starting at $1,495
Used Chevrolet Suburban
344 Great Deals out of 21,843 listings starting at $1,999
Used GMC Sierra 1500
896 Great Deals out of 65,452 listings starting at $1,995
Used GMC Acadia
821 Great Deals out of 47,765 listings starting at $2,995
Used Ford Expedition
375 Great Deals out of 19,506 listings starting at $1,295
Used Chevrolet Silverado 1500
2,134 Great Deals out of 167,340 listings starting at $1,995
Used Ford F-150
2,317 Great Deals out of 183,061 listings starting at $1,000
Used Jeep Grand Cherokee
895 Great Deals out of 70,665 listings starting at $1,045
Used Ford Explorer
852 Great Deals out of 63,389 listings starting at $995
Used Toyota 4Runner
298 Great Deals out of 21,851 listings starting at $1,700
Used Dodge Durango
305 Great Deals out of 21,420 listings starting at $2,195
Used Nissan Armada
152 Great Deals out of 7,880 listings starting at $2,995
Used Toyota Sequoia
137 Great Deals out of 5,347 listings starting at $2,499

Used Cars For Sale

2014 GMC Yukon Denali AWD For Sale
12 Great Deals out of 147 listings starting at $25,690

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.