Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

Results 1 to 3 of 3

Thread: 2008 esv dtc: P2635

  1. #1
    Join Date
    Feb 2013
    Age
    28
    Posts
    13

    2008 esv dtc: P2635

    Hey guys, Have a 2008 ESV:

    When driving the car was running very lean, the gas tank doesnt seam to be releiving pressure properly. I ran the Tech 2 and pulled one DTC from the FPCM: P2635. I`m thinking its either the emmisions system valve assembly, or the purge valve have gone bad, or possibly both. I searched and couldn`t find much info on this so thought some of you experts here might have some ideas. Neither of these parts is very pricey so I`m considering just replacing them both...any thoughts are appreciated!

    Cheers,

    Isaac


  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    wwceaton is offline Cadillac Owners Fanatic
    Automobile(s): 2007 Escalade base
    Join Date
    Jul 2012
    Age
    50
    Posts
    104

    Re: 2008 esv dtc: P2635

    It is neither, it is for the fuel pump circuit A, It is Missing Fuel (Gasoline) or the Fuel Pump or Fuel Pump Control Module.
    It sounds like you do not have the correct fuel pressure. You need to check this first. Hope this helps.
    .

  4. #3
    Join Date
    Feb 2013
    Age
    28
    Posts
    13

    Re: 2008 esv dtc: P2635

    Thanks for the resonse. I have this car in the shop now, and it barely drives at all now. It will idle but rough, when you have it in drive it heaves and lunges and then stops, and the repeats the cycle. The tech 2 read these DTCs:

    B1035
    P0230
    P0449
    P069E

    Is there anywhere I can get a wiring diagram for the fuel pump circut? I did find a faint one, and wanted to look into C300 (which I presume to be a socket conenction) which the wiring coming from the ECM and EVAP, and Fuel Tank Pressure sensor. Does anyone know the location of this? Thanks for any help.

    Cheers,
    Isaac


Bookmarks

Cadillac Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Read about Lincoln | Buick | Kia Forte Forum