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2000 Ford Explorer Engine Hesitation

Tiny
KSMITH0110
  • MEMBER
  • 2000 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 113,000 MILES
My truck hesitates under acceleration around 45-55 mph. It runs fine but uses a LOT of gas. I just replaced the motor with a 9000 mile motor. It's giving me P1131 & P1132 codes. I've checked the catalytic converters and the EGR valve operation. Like I said it runs fine except for the hesitation and the gas guzzling.
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Sunday, March 16th, 2008 AT 7:34 PM

2 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
You need to look at the o2 sensors
P0131 Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 1)

P0132 Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 1)
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Monday, March 17th, 2008 AT 7:44 PM
Tiny
KSMITH0110
  • MEMBER
  • 2 POSTS
I took it to a qualified mechanic in my area - rather than throw parts at it. It turned out to be a bad O2 sensor. He said that it showed a negative voltage reading back to the computer. With that changed, the truck runs perfectly.
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Wednesday, March 19th, 2008 AT 7:39 PM

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