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Engine stopped while driving...would not restart. The car was NOT showing any codes. Had the car towed to mechanic. Was told I needed a new fuel pump, fuel filter and fuel pump relay. Cost was $900+. Car drove home fine. Next day I went to town (9 miles) and the check engine light came on. Codes were P1071 and P1074. I cleared the codes. Next day drove the car approximately 20 miles and the light did not come on. Today I went back to town (9 miles) and the light came on with the same codes.
What makes this problem better or worse?
Nothing in particular
How long has your 1999 Ford Expedition had this problem?
started 3 days ago
1 Reply
Hello, those repairs are not going to solve your trouble codes. Maybe -- maybe they fix your stalling concern. I'm pretty sure you mean P0171 and P0174 -- bank one and bank two both "lean". I'd look for a PCV hose issue - that's somewhat common. If not, it could be mass air flow sensor related, or something else allowing too much air into the engine, causing the "lean" codes to set. www.repairpal.com/repair-shops