2000 STS fuel pump wont turn on

Tiny
2GR6RYDA
  • MEMBER
  • 2000 CADILLAC SEVILLE
My 2000 sts would stall almost everytime I drove it once. It would start back up instantly and not stall again. I thought it was the fuel pump failing. I drove the car dry of gas cause my fuel gauge didnt work properly and I put more gas in and ever since the fuel pump would not turn on. I put a new fuel pump in and it still will not power on. I checked the relay and it was working. Any suggestions as to what can be causing the fuel pump to not turn on?
Saturday, July 14th, 2007 AT 1:53 PM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Try changing the Temperature sensor.
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Saturday, July 14th, 2007 AT 4:42 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If its not the temperature sensor-try checking all 3 relays-cooling fan power relay, High, and low speed relay-aint it could be the PCM not activating the relay.

Hot wire the fan motor, if it comes On go to the relays one by one.
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Sunday, July 15th, 2007 AT 7:17 AM

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