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ray
ray 3/1/2012
2000 Mercury Sable GS 6Cyl3.0L - Preventive Maintenance
my mer, sable runs rough and has a check eng. code of 1237. anyone know what this is, and how to fix it?
problem comes and goes, even after i have cleared the code with the tester
2 Answers
  • Jimm
    Jimm 3/3/2012
    P1237 = Fuel Pump Secondary circuit fault. Usually related to the fuel pump wiring, connection, pump circuit - and sometimes as finalstep - the fuel pump itself.
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  • HouseCallAuto
    HouseCallAuto 3/3/2012
    In almost all cases (greater than 90%) the cause is a bad fuel pump.
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