Question about 1998 Ford Expedition

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Expedition knock sensor

I have a 98 expedition with a 4.6L and the knock sensor needs to be replaced. I know that the its a long project and its under the upper intake. Is there a way to replace it without removing everything.

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NO.U HAVE TO REMOVE THE UPPER INTAKE

Posted on May 14, 2009

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Locating the knock sensor on a 1998 ford expedition


It is under the intake manifold see picture below, it is the green part in center of engine valley between the heads.
11_5_2012_11_38_19_pm.jpg

Nov 05, 2012 | 1998 Ford Expedition

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I want to know where the knock sensor is ,in a ford expedition 1998 4.6 by picture


Do you mean NOX sensor ? I believe on that unit it is on the exhaust system just under the exhaust manifold right side of the car as seen from the drivers seat.

Nov 29, 2011 | 1998 Ford Expedition

1 Answer

Can I replace the knock sensor on a 1999 ford expedition Myself and if so what is the location


Yes you should be able to do this yourself. The part at autozone is about 42 bucks. The knock sensor is located on the right side of the engine block under the exhuast manifold on the V6. It should also be in the same general area on a V8.

Jul 25, 2011 | Ford Expedition Cars & Trucks

1 Answer

Need to know how to install knock sensors and where they are need diagram. 2005 expedition 5.4 engine


Hello adamjerkins,

It is somewhat complicated to change the knock sensors. There are two of them and they are located under the intake manifold. The intake manifold must be removed. I would recommend tha you replace both while you have the engine apart.

What leads you to believe the knock sensors are bad, I've seen few bad knock sensors? The knock sensor issues more times than not have been caused by other problems.

After you remove the intake manifold disconnect the knock sensor connectors. Remove the bolts and the two knock sensors then replace with new knock sensors tighten the bolts to 15 foot pounds. Reinstall manifold. The total job for an experienced mechanic with tools is about 5 hours. Not a good job for a beginner.


Regards,
netvan

Mar 05, 2011 | 2005 Ford Expedition

1 Answer

Why is the right side of my engine on my 2003 ford expedition knocking?


How do you know it is the right side?
How do you know it is ,in fact knocking

Do you have a Knock Sensor Code set?

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May 12, 2010 | 2003 Ford Expedition

1 Answer

Service engine soon light is on. weird noise (knock) on muffler. engine oil recently changed.


need new engine sensor, perhaps and most likely you need to replace your "knock sensor" which is a very coslty job

Sep 27, 2008 | 2004 Ford Expedition

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