Question about 1996 Mercury Villager

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Knock sensor needs replacement. Is this a DIY, or do I need a mechanic?

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To replace it is very very hard due to its location. BUT... it is quite simple to take care of if you understand what a knock sensor is. It is just a sound detector. It listens to the engine and if it hears detonation, then it signals. So you need a sensor that works, but if it hears nothing who cares?
Thus, fixing the problem (you have a code) is easy. Buy a new knock sensor. Mount it to the body of the car anywhere that is grounded. Like the sheet metal above the engine manifold. Now reroute the wires that run to the old sensor to this new sensor. Leave the old sensor (now disconnected) where it is. You will need to get the manual (ebay) to locate the wires. Oh - the white wires turn yellow with time. That yellow wire is white.
The new sensor operates perfectly, but it never hears anything. Problem solved.
F&*K-off you guys at the DMV and the EPA!

Posted on Sep 05, 2009

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Villagers **** to work on but only one bolt holds the knock sensor in place... look around lower intake manifold...

Posted on Jul 16, 2009

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SOURCE: DIY replace knock sensor?

before you start taking stuff apart, make sure that the knock sensor is bad and not the wires. test for ground and continuity on the signal wire from the sensor connector to the pin on the pcm connector. google "testing knock sensor" for more info

Posted on Mar 23, 2010

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How do i deal with Error Code P0328


the following information courtesy of OBD-CODES.com P0328 Knock Sensor Circuit High Input OBD-II Trouble Code Technical Description Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) What does that mean? Knock sensors are used to detect engine pre-detonation (engine knock or ping). The knock sensor (KS) is usually a two wire sensor. A 5 volt reference is supplied to the sensor and there is a signal return from the knock sensor to the PCM (powertrain control module). The sensor signal wire informs the PCM when a knock occurs and in what degree of severity. The PCM will retard the spark timing to avoid pre-detonation. Most PCMs have the ability to learn spark knock trends in the engine during normal operation. A P0328 code is a generic DTC, thus it applies to all makes of vehicles, and refers to a high output voltage of the knock sensor. In many cases, this means the voltage is above 4.5V but that specific value depends on the specific make and model of vehicle. This code refers to the sensor on bank #1. Symptoms Symptoms of a P0328 DTC may include: MIL (Malfunction Indicator Lamp) illumination Audible knocking from the engine compartment Pinging from engine under acceleration Loss of power Irregular RPM Causes Potential causes of a P0328 code include: Knock sensor connector is damaged Knock sensor circuit is open or shorted to ground Knock sensor circuit is shorted to voltage Knock sensor has failed Loose knock sensor Electrical interference in circuit Low fuel pressure Incorrect fuel octane Mechanical engine problem Failed/faulty PCM Possible Solutions If you can hear engine knock (detonation), first fix the source of the mechanical problem and retest. Ensure the correct octane fuel was used (some engines require premium fuel, check the owners manual). Aside from that, for this code, most likely the problem will lie either with the knock sensor itself or the wiring & connectors going from the sensor to the PCM. Realisitcally, for the DIY vehicle owner, the best next steps are to measure the resistance between the two knock sensor wire terminals where they go into the PCM. Also, check the voltage of the same terminals. Compare those numbers to the manufacturer's specifications. Also, check all wiring and connectors leading from the knock sensor back to the PCM. In addition, you should also check the resistance using a Digital Volt Ohm Meter (DVOM) of the knock sensor itself, compare it to the vehicle manufacturers specification. If the knock sensor resistance value is out of spec, then it needs to be replaced. Other knock sensor DTCs include P0324, P0325, P0326, P0327, P0328, P0329, P0330, P0331, P0332, P0334 Register now to ask a question (free) Related P0328 DTC Discussions

Read more at: http://www.obd-codes.com/p0328
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Aug 17, 2015 | Cars & Trucks

1 Answer

Hello, I need some help. I have a 1996 Honda Civic ex (automatic) D16y8 VTEC engine. Today I had a mechanic replace distributor with a new one (not rebuilt) from an auto parts store. The mechanic did not...


Yes, the ignition timing could be off enough to cause the symptoms and the check engine light.
I would take it back to the shop and tell them to set base timing, clear the code, and refund you the cost of the knock sensor and labor.

Jul 07, 2013 | Cars & Trucks

1 Answer

My knock sensor on my 2003 cadillac deville is faulted. How hard and what tools and supplies do I need to replace the knock sensor


  1. Remove the intake manifold.
  1. Disconnect the knock sensor electrical connector.
  1. Remove the knock sensor (KS).
Installation Procedure

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    .
  1. Install the knock sensor.Tighten
    Tighten the knock sensor to 25 [n-m] (18 lb ft).
  2. Connect the knock sensor electrical connector.
  3. Reinstall the intake manifold.
    this is quite a job and i would not reccomend a novice mechanic to preform this repair book time is about two hours for this repair hope this helps

Oct 20, 2012 | Cadillac DeVille Cars & Trucks

1 Answer

How to tell which or if either knock sensor is bad on a 2005 Chevy suburban 5.3. I have a light on that two mechanics read and both said it's the knock sensor low circuit #2


usually the sensors (2) are good but the harness goes bad and there is corrosion at the knock sensor connection. The intake manifold need to be removed and the harness replaced. KNOCK SENSOR 2 IS THE REAR.

Sep 12, 2011 | 2005 Chevrolet Suburban

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

Engine check light keeps coming on and stays on.i had the car diagnosed the mechanic said that the knock sensor is dad and i need to get a new knock sensor so i bought a new knock sensor put it in and it...


did you have the check engine light reset after replacing it? if not then go to auto zone, and let them know you replaced it and need to reset the trouble light for the check engine light... hope this helps...

Apr 14, 2010 | 1995 Toyota Corolla

1 Answer

DIY replace knock sensor?


before you start taking stuff apart, make sure that the knock sensor is bad and not the wires. test for ground and continuity on the signal wire from the sensor connector to the pin on the pcm connector. google "testing knock sensor" for more info

Mar 23, 2010 | 2000 Subaru Outback

1 Answer

1989 K1500 GETTING CODE 43 NEW ENGINE REPLACED KNOCK SENSOR AND THE CONTROL MODULE.


The 43 is the knock sensor, the wires must be broken or fused together to continue to get the same code.
Testing the sensor for the DIY Knock sensors detect detonation ( knocking ) by reacting to the ping by retarding the ignition timing so you will need a timing light for this. connect the timing light and locate the knock sensor, ( many are on the intake manifold ) now use a metal object to tap ( not too hard and not on the sensor itself ) on the intake manifold ( light tapping should suffice ), if the sensor is functioning you will see the timing ******. If the timing does not ****** you will need to check voltage across the terminals of the knock sensor connector.
Though that excerpt says your sensor is in the intake,I believe yours is in the water drain hole for the engine block.
I also found that most shops are to replace the wire to the knock sensor because of so much failure of those wires because of heat.
Enough information?Repost if this doesn't help and we can look at some other things to try.

Jan 17, 2010 | 1996 Chevrolet C1500

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