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P1237 Diagnostic Trouble Code Discussion for January 2009

Fuel Pump Secondary Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1237
Help Request Posted
2000 Mercury Sable GS 3.0L No Start, Hesitation VIN: IMEFM55S9Y
P1237: fuel pump sec circuit malfunction. ... condition. Both codes PO191 P1237. Cleared codes car fine . I let it run for 2 hours then power braked it . The car stalled and would not restart. Let sit for 2 mins started back up. Car reset the 1237 code but not the other. Car is supposed to have a driv...
January 09, 2009