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Search results

  1. T

    Engine code po321

    He cleared the engine code again. It's been a while now and this time it has stayed off. Everything seems to be working fine. He said he hasn't had to do anything else other than replace that relay.
  2. T

    Engine code po321

    our check engine light came on. the code was po321 so we replaced the relay with a brand new one and cleared the codes. we are still getting the check engine light and the same code so the new relay did not solve the problem. I did find this link...
  3. T

    Engine code po321

    We found it. Thanks AK Diesel driver.
  4. T

    Engine code po321

    we have a 1996 chev 6.5 k2500 diesel 4x4 I am getting engine code po321 so I am looking to locate the fuel pump relay. My manual does not give me the exact location for this relay. Does anyone know where I would locate it so I can test it? thanks
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