× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2006 Cadillac STS 3.6L No Start
Posted to GM Driveability on 2/16/2011 7 Replies

We replaced the primary fuel pump asm. And the auxilliary fuel sending unit and fuel pump relay. Vehicle will not start but cranks over has no fuel pressure and code po627 keeps coming back after clearing it from ecm.

7 Replies Received (View Replies)

  Related Documents & Media  2006 Cadillac STS

 
Message Closed w/FIX

car Vehicle Data

2006 Cadillac STS

VIN 1G6DW67786
Engine3.6 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / MPFI
EmissionsOBD-II Compliant
SymptomsNo Start
OccursCold
Misc.4 Door Sedan

Trouble Codes

P0627PGM-FI Main Relay 2 (Fuel Pump) Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

2006 Cadillac STS

VIN 1G6DW67786
Engine3.6 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / MPFI
EmissionsOBD-II Compliant
SymptomsNo Start
OccursCold
Misc.4 Door Sedan

Trouble Codes

P0627PGM-FI Main Relay 2 (Fuel Pump) Circuit Malfunction