Question about 1999 Ford Explorer

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Air problem my 1999 Ford Explorer flaw in the morning when the bank 1 bank and 2 did not receive sufficient air 1999 Ford Explorer

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  • Anonymous May 19, 2008

    i have ford explorer the idle is not stable when cold it jumps up and down and runs rich which sensor would it likely be egr or map
    had it checked the code was 117



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Code 117 is either the Engine coolant temp sensor or the cylinder head temp sensor depending on which application you have.
Indicates the sensor signal is less than Self-Test minimum. The ECT sensor minimum is 0.2 volts or 121°C (250°F).
Do you have access to a scan tool that can read PIDS? If so access the PID and see what it is reading,then disconnect the sensor and see if the voltage then goes to over 4V.If so replace the sensor, if not make sure the wires going to the sensor are not grounded out somewhere.

Posted on Jan 29, 2009

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Have you checked your filters ?? air, mass meter, any hose burnt , cracked, ??
also there is a throttle position sensor that is in charge of opening and closing the intake, if thats faulty it will cause this problem too.

Posted on May 15, 2008


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1 Answer

Fuel system leanbank #2 how to correct

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I have a 1999 ford explorer sport 4.0 vin E sohc 6cyl. My engine light keeps coming on, I have changed the fuel filter, o2 sensopr,& pcv valves, My question is what is the next step in solving thi

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bank 2 is the drivers side of the motor and sensor 1 is the first sensor in the exhaust system from the manifold back to the catalytic convertor.

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1 Answer

Where is bank 2 o2sensor located at on a 99 explorer

Hello my name is Israel and I will try to help you out. Bank 1 is the dirvers side and bank two is the passenger side. Sensor 1 will be before the convertor and 2 after. Good Luck. Israel Adame

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Ford explorer 4.0 1996 where are oxygen sensors located

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1 Answer

Code #P0171 & code #P0174

The most common problem on a Ford with these codes is deteriorated PCV hoses. Check the hoses from the PCV valve to the intake manifold. Pay special attention to the rubber elbows. They often crack on the inside curve and the crack is hard to see.

May 19, 2008 | 1999 Ford Explorer

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