2008 Silverado P069e

Mike Owner/Technician Richmondville, New York Posted   Latest  
Updated
Electrical
2008 Chevrolet Silverado 1500 LT 5.3L (0 LMG) 4-spd (4L60-E)
P069E — Fuel Pump Control Module Requested MIL Illumination

OE module installed and programmed at dealer twice... Dorman module would clear set monitors randomly and while driving ... P069E still regenerates... Wiring, supply and grounds all check ok... ???

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Jason Technician
Arlington Heights, Illinois
Jason Default
 

A P069e can be multiple problems. It’s just stating there’s an issue in the fuel system. Whats the fuel pressure at ? That’s the first thing to check with that code. How about fuel trims ?

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Michael Diagnostician
Irving, Texas
Michael Default
 

PCM setting P069E? What's the DTC in the Fuel Pump Control Module or Chassis Module?

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Caleb Diagnostician
Mishawaka, Indiana
Caleb Default
 

PO69E means there is codes in the Fuel Pump Control module that need diagnosed. Its the same code as a P0700 Trans Request MIL Illumination. Please let us know what codes are in the Fuel Pump Control Module. Then we can help you.

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Alvaro Service Manager
Oranjestad, Aruba
Alvaro Default
 

You just order the Dealer to replace FPCM? Dealer did diagnostic or just replace and program part? As others said, need more Diagnostic in the other modules.

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Michael Mobile Technician
Clinton, Utah
Michael Default
 

Connector issues a problem with FPCM. Make sure the connector is snug and the seal is not to tight.

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Alvaro Service Manager
Oranjestad, Aruba
Alvaro Default
 

You hit the Jackpot Sr. It was corrosion in the connector, as you said. You are the MASTER!!!!!!!!!!

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Mike Owner/Technician
Richmondville, New York
Mike Default
 

Nadda... The event still happens on the third drive cycle... 5v ref is steady ... Maybe a quick rewire from the rail sensor to the module...?

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Mike Owner/Technician
Richmondville, New York
Mike Update
 

Yes how foolish of me.... P0191-00 Fuel rail pressure sensor circuit performances .... Replaced pressure sensor first ... then found 1 corroded pin at the base of the FSCM....

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Caleb Diagnostician
Mishawaka, Indiana
Caleb Default
 

Hey at least you figured it out man.

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Mike Owner/Technician
Richmondville, New York
Mike Default
 

Nadda... The event still happens on the third drive cycle... 5v ref is steady ... Maybe a quick rewire from the rail sensor to the module...?

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Alvaro Service Manager
Oranjestad, Aruba
Alvaro Default
 

Do not worry man. Once somebody brought me a Cruze, with FPCM problems, they replaced it already, and codes still present. I did a Diagnostic, and find a problem, with the GRILLE LOUVERS in the Front Grille, and they are commanded and actuated from the FPCM in the BACK of the car. Go figure.

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Mike Owner/Technician
Richmondville, New York
Mike Update
 

Nadda... The event still happens on the third drive cycle... 5v ref is steady ... Maybe a quick rewire from the rail sensor to the module...?

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Caleb Diagnostician
Mishawaka, Indiana
Caleb Default
 

Connect a 4 channel scope. Connect to all 3 wires at sensor. Connect last channel at signal at the Fuel Pump Control module. Connect a fuel pressure gauge to the rail. Now drive the car till it acts up. You will find it if you do that.

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Caleb Diagnostician
Mishawaka, Indiana
Caleb Default
 

Did you get it??

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Mike Owner/Technician
Richmondville, New York
Mike Update
 

Thanks gentleman .... Your help and advice is regarded with holy reverence ... after all this the truck is going to wear farm plates... She's pretty corroded and humble in appearance ...Sometimes I'm the dog... Sometimes I'm the tree.. Cheers to all.. :)

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