Question about 1998 Ford Expedition

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Where is the h20 sensor in bank one located on 1998 ford expedition 5.4

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It should be on the passenger side, just below the exhaust manifold.

Posted on Jan 31, 2010

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1998 dodge ram 1500 po132 engine light wont go off after replacing h2o sensors


the h2o sensor may not be the only problem, some thing else is setting off the sensor, a pin hole in the hose, a loose connection, cracked lines, plug lines, blockage of sensor that controls the h2o unit, look at the whole picture, housing, gasket is that area, too much h2o, not enough h2o, gases mixtures + h20's, make sure you have the air pressures sucking and pushing through the line.
you are going to have to a service manual and general information how the h20 system works in that vehicle. test points.

www.ask.com/year/mfg.name/make/model/how/does/H20/system/works/on/vehicle/

Sep 18, 2015 | 1998 Dodge Ram

1 Answer

If you are lean both in bank 1 and bank 2, how do you fix it?


Probably is the Oxygen sensors are bad seems i had same problem a few years back and had to replace the sensor. Hope this helps

Jul 04, 2014 | 1998 Ford Expedition

2 Answers

Camshaft sensor a bank 2 on 2006 ford expedition limited.


It's going to be the one on the left (drivers) side (picture below). Through experience I have found that due to the location of these sensors the connectors get oil in them and moisture. Sometimes just cleaning the connector clears up any diagnostic trouble codes or drivabilty problems. Hope this helps you....



12_10_2012_2_39_50_am.jpg

Dec 10, 2012 | 2000 Ford Expedition

1 Answer

What is code po171 on a 1998 Ford expedition


refers to o2 sensor bank 1 s1 is reading lean check for exh leak vaccume leak egr intake check for misfire


let me know if this helps comment reply if you need more info

Jan 18, 2011 | 1998 Ford Expedition

1 Answer

Where is the o2 sensor bank 1 located 5.4 engine fird expedition


depends... there are 2 sensors on each bank... bank 1 is the passenger side, sensor 1 is closest to the front of the vehicle( usually before the catalytic coverter) and sensor 2 is closest to the rear of the vehicle( after the cat. known as the cat monitor) hope this helps

Jan 18, 2011 | 2000 Ford Expedition

1 Answer

I locate oxygen sensor on my ford expedition


for 1998 Ford Truck Expedition 4WD 5.4L EFI 8cyl the Oxygen Sensor is located under vehicle, driver side, below seating area, mounted in exhaust pipe in rear of catalytic converter.

Application: Number three

Hope helps (remember rated this).

Aug 09, 2010 | 1998 Ford Expedition

1 Answer

O2 sensors on 1998 ford windstar


1998 Ford Truck Windstar 3.8L SFI 6cyl, there are 4 oxygen sensors on the Windstars They are divided into 2 banks of 2. Bank 1 is the for the rear 3 cylinders of the engine - Bank 2 is for the front 3 cylinders. Bank 1 / Sensor 1 (upstream) is located just below, in the pipe, the exhaust manifold on the back of the engine.

REMOVE TIP: you may have to bend part of the transmission heat shield out of the way - be sure to put it back when done.
Bank 1 Sensor 2 (downstream) is located just past the drivers side catalytic converter.
Bank 2 Sensor 1 (upstream) is located just below the exhaust manifold, in the pipe, at the front of the van - access is from the top.
Bank 2 Sensor 2 (downstream) sensor is located just past the passenger side catalytic converter.

NOTES: * Use lots of penetrating oil - allow to soak - to make removal easier and avoid damaging the exhaust pipe

Hope this help; TY for using Fixya (remember rated and comment this).

Mar 30, 2010 | 1998 Ford Windstar

1 Answer

Getting a code po171 on a '98 ford expedition...O2 sensor? If so whitch one?


CODE PO171 -SYSTEM ADAPTIVE FUEL TOO LEAN. POSSIBLE CAUSE.AIR LEAKS AFTER THE MAF SENSOR OR LEAKS IN THE PVC SYSTEM. EXHAUST LEAKS BEFORE OR NEAR WHERE THE HO2S IS MOUNTED. FUEL INJECTORS RESTRICTED OR NOT SUPPLYING ENOUGH FUEL. FUEL PUMP WEAK. LEAKING EGR VALVE GASKET OR DIAPHRAGM.MAF SENSOR DIRTY CAUSES PCM TO UNDERESTIMATE AIR FLOW / NOW THE BANK 1 SENSOR ITS MOUNTED IN THE EXHAUST SYSTEM BEFORE THE CATALYTIC CONVERTER.THE BANK 2 SENSOR IS IN EXHAUST AFTER THE CATALYTIC CONVERTER.

Aug 27, 2009 | 1998 Ford Expedition

1 Answer

Trying to locate bank 1 & bank 2 sensors up stream i cant find the one on passagner side? I changed the one right before cat-conv.


Assuming you are talking about the O2 sensors - they are both located in the exhaust system.

Bank1 is Under hood, driver side, lower engine area, below exhaust manifold flange, mounted in exhaust pipe.

Bank2 is by Cat.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.


Apr 06, 2009 | 1998 Ford Expedition

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