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Jeep 4.7 Knock under hood - 1999 Jeep Grand Cherokee Limited

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What's the location of the knock sensor on a 2013 Jeep Grand Cherokee lerado 3.7 ,and how much to repair it


The two knock sensors are bolted into the cylinder block under the intake manifold. The two sensors share a common wiring harness using one electrical connector. Because of this, they must be replaced as a pair. 1 and 2 are the knock sensors in diagram below..


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Feb 27, 2017 | Jeep Cars & Trucks

1 Answer

Engine knock


caused by hot and lean.
which engine.??? at least 3 choices.
most have knock sensors. and will not knock.
if it really is knock then that is serious.
knock means detonation or ping.
if its just noise say that,
real PING happens under load.
1: check fuses.
2: check knock sensor for outside damage.
3: SCAN the PCM. do you have any DTC errors/
4: do a full 60k tune up. maybe its lean because the fuel filter is clogged.

Mar 23, 2014 | 2000 Jeep Grand Cherokee

1 Answer

Jeep 4.7 V8 Knock under hood


It would be unlikely the number 8 rod bearing would be flapping around without causing some damage to the finish of the crankshaft journal.

The big question is why was it flapping around in the first place? Often a shortage of oil being supplied to that bearing would be the cause and the main suspect.

I suggest you revisit that bearing and take a closer look and maybe use a micrometer to check that journal.

Mar 16, 2017 | 1999 Jeep Grand Cherokee Limited

1 Answer

Diagnostic Trouble Code 332 JEEP LIBERTY ? WHAT IS THIS ?


2005 Jeep will be OBD II compliant and the trouble code(s) will be 4 digits after a P,B or U. Are you sure you wrote it down right?
For example P0332 for your car is Knock Sensor 2 Circuit Low Input (Bank 2)

Potential causes for a P0332 DTC include (but are not limited to):

  • The knock sensor is faulty and needs to be replaced
  • There is a wiring open/short/fault in the knock sensor circuit
  • The PCM/ECM has failed
Possible Solutions
  • Verify the resistance of the knock sensor (compare it to factory specs)
  • Inspect for broken/frayed wires leading to the sensor
  • Check the wiring and connections leading to/from the knock sensor and PCM/ECM
  • Verify proper voltage is reaching the knock sensor (e.g. 5 volts)
  • Verify proper grounding of sensor and circuit
  • Replace the knock sensor
  • Replace the PCM/ECM

Jan 25, 2011 | 2005 Jeep Liberty

1 Answer

Jeep engine is knocking


this engine has two knock sensors that plug in under hood back of manifold drivers side the sensors are located under intake manifold that needs to be removed if sensors or wireing is damaged a good mechanic can change one in about one hour or less

Aug 27, 2010 | 2006 Jeep Liberty

2 Answers

Headlights flick on and off


it is your dimmer switch(high/low beam) shorting out.

Jul 19, 2010 | 2005 Jeep Grand Cherokee

3 Answers

Knock sensor 1996 v6 3.3 nissan pathfinder


The Crankshaft Position Sensor is located: Under hood, driver side, front engine area, mounted rear of crankshaft pulley
The Knock Sensor is located: Under hood, center, front engine area, below intake manifold, mounted on block

Jun 14, 2009 | 1996 Nissan Maxima

1 Answer

2002 jeep liberty 3.7 engine where is knock sensor located and can the knock sensor cause it not to start.


get the pcm computer checked first for errors.
The 2 knock sensors are bolted into the cylinder block under the intake manifold. The sensors are used only with the 3.7L engine.
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c15280221909

what are your sysptoms of no start?

Mar 10, 2009 | 2002 Jeep Liberty

2 Answers

Oil and engine lights are on


You had better Check the Oil! Once it starts Tapping you need to get the Motor looked at, Because every time it does, it is causing damage to the Motor.

Jan 22, 2009 | 1998 Jeep Cherokee

1 Answer

Engine knock on 2004 f150


havent heard that one before 4 a knock .Think i would look at a diffrent one.

Dec 07, 2008 | 2004 Ford F150

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