Question about 2003 Jeep Liberty

1 Answer

I have a 2003 Jeep Liberty (good body,no engine,std. Trans and a 2004 Jeep Liberty (bad body,auto trans.) Can I put the 04 motor AND computer into the 03 jeep ???

No...I really don't want to change the 'reluctor' &scam wheel...

Posted by on

  • Dave Leadbeater
    Dave Leadbeater Nov 30, 2016

    Thank you, JeepMaster ( yadayadayada) does the transmission difference trouble not make ?



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.


    An expert who has answered 20 questions.

  • Contributor
  • 23 Answers

Generally, this is do-able as long as you are using all of the electronic systems that go along with the new motor/tranny swap. The donor vehicle needs to be the same or newer for emissions purposes as well as it must run as clean or cleaner than the target vehicle. (I see yours is so shouldn't be a worry). If your state has emissions testing, check with your DMV about the local rules on emission requirements when swapping drive trains. Lastly, you will want to make sure the chassis is the same between these years as if they are not, things may not be a simple bolt-in job. Good luck.,

Posted on Dec 02, 2016

Testimonial: "Thanks for the encouraging there a way of determining a chassis match ( on the VIN decal maybe?)"

  • 2 more comments 
  • Johnnymoto
    Johnnymoto Dec 03, 2016

    VIN won't help on that question. Check for the look on the model years. That's usually a good clue since the overall look will be basically the same during a model run. Another way is to join an enthusiasts blog for your vehicle and see if there are charts indicating the differences or just post the question there.

  • _-__-___-_
    _-__-___-_ Jan 01, 2017

    answering for USA cars, and only 3.7L
    VIN K car. (engine = K = 3.7L)v6
    no engine stated or if 4wd? (wreckers net)
    this is the free, look up of all wrecked cars
    and they can tell you what engines swap
    no engine stated.
    how can anyone answer.

    "and computer" why say that,"
    all you need is a good engine
    a long block. none stated.
    2.4L engine or 3.7L V6
    are both 4wd????????????????????
    42RFE trans. in all. a/t
    the 3.7L is called by jeep the EKG engine
    if you pretend to by one, rebuilt.
    it tells you flat out what years match.
    why not do that on this unstated engine.
    a long block is devoid of manifolds
    and sensors matter too.
    they must be correct for the 2003. system.
    as you may not know, swaps are not simple.
    its a complex topic
    after all the PCM runs the whole car.
    drive line. and most match.
    this is no 1986 jeep.
    tell the helper what you dont want to replace
    is really bad form.
    you will do what must be done, no matter what. (Ill not tell you what smog laws are in all of N.America, ever)
    EKG started in 1999. (wiki that)
    its a chopped down 4.7L, v8 to V6
    they are sister engines.
    lots of 3.7L in jeep and dodges.
    in fact there are so many of them now
    many builder sellers need no core charge.
    im doing your job for you, im asking builers
    some say 03./04 are not same.

    2005 is major changes, new cam and valve and new compression ratio.
    my guess is they match.
    EKG for EKG blocks. (long)minus manifolds.

  • _-__-___-_
    _-__-___-_ Jan 01, 2017

    the reman heads, with cam "D" shapped
    combustion chambers.
    match. 03./04, top sellers.
    all you need is EKG block long, less than 2005
    i think you have one.

  • Anonymous Jan 02, 2017

    here are the ropes
    it must fit. (generational issues, abound)
    must run.
    must not confuse the PCM. or TCM !!!!(ask)
    it must pass smog, (if in a smog zone)
    or if in calif, it must pass inspection.
    they can fail you there on LOOKS alone
    wrong parts, or not listed in the EO book they have. (ask)
    I'd check engine serials too,
    who knows what is there, not me. not anyone.



1 Suggested Answer

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Hi i have an abs 24-1 left rear pulsar failure?

You omitted to say whether the abs reluctor is mounted on the hub or within the wheel bearing?

Later types often have the reluctor situated in the wheel bearing. The earlier bearing is likely to be dimensionally identical and usually will fit the hub without problems but as the reluctor is absent the abs sensor will not produce a signal.

If your car was manufactured near a change point it is possible you have been supplied with the wrong bearing. This has happened to me on multiple occasions in a wide variety of parts and vehicle brands.

Mar 08, 2018 | Cars & Trucks

1 Answer

Have a 2003 cadillac cts...serpentine belt broke. Replaced it. Still won't start. Codes came up indicating crankshaft position sensor and camshaft position sensor. Replaced both. Cranks but won't start....

Inspect the reluctor wheel for signs of damage or looseness. Refer to Diagnostic Aids. If you find damage or looseness to the reluctor wheel, refer to Camshaft Replacement - Left Side in Engine Mechanical.
Did you find and correct the condition?

Diagnostic Aids
• The following conditions may cause this DTC to set:
- Camshaft reluctor wheel damage
- Incorrect sensor installation
- The sensor coming in contact with the reluctor wheel
- Excessive air gap between the reluctor wheel and the sensor magnet
- A cracked or damaged sensor
- Foreign material passing between the sensor and the reluctor wheel
• This DTC will set with an intermittent failure on the ignition 1 voltage circuit, the CMP sensor signal circuit, or the low reference circuit. A hard failure of any one of these circuits should set DTC P0342 or P0343.
• The CMP sensor low reference circuit is shared with the mass air flow (MAF) sensor, and the engine coolant temperature (ECT) sensor.

The camshaft position (CMP) sensor is a hall effect switching device that works in conjunction with a single tooth reluctor wheel used to determine the position of the bank 2 exhaust camshaft. The engine control module (ECM) expects the CMP sensor signal to be low, 0 volts, as the single tooth in the reluctor wheel passes the sensor, and high, 12 volts, during the remainder of the reluctor wheel rotation. The ECM supplies a 12-volt pull up voltage on the CMP sensor signal circuit. The ECM expects to see one transition from high to low every two crankshaft revolutions. This signal, when combined with the crankshaft position (CKP) sensor signal, enables the ECM to properly synchronize ignition timing, fuel delivery and knock control. As long as the CKP signal is available, the engine can start and run. The ECM will default to a non-sequential fuel injector operation even if there is no CMP sensor signal. If the ECM detects extra or missing CMP sensor signal transitions within a certain number of crankshaft revolutions, DTC P0341 sets.
The CMP sensor has the following circuits:
• Ignition 1 voltage circuit
• Low Reference circuit
• CMP sensor signal circuit

Feb 21, 2018 | Cadillac Cars & Trucks

1 Answer

08 pont grand prix 5.3 no start,no eng.light on but code reads po341

No start ???? No crank - no start or crank no start ? Meaning when you turn the key to start the vehicle what happens ? Does the starter engage an spin the engine or not ?

DTC P0341: Camshaft Position (CMP) Sensor Performance
The 4X camshaft position (CMP) sensor circuits consist of an engine control module (ECM) supplied 5-volt reference circuit, low reference circuit, and an output signal circuit. The CMP sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor detects magnetic flux changes between the peaks and valleys of a 4-tooth reluctor wheel attached to the camshaft. As each reluctor wheel tooth rotates past the CMP sensor, the resulting change in the magnetic field is used by the sensor electronics to produce a digital output pulse. The sensor returns a digital ON/OFF DC voltage pulse of varying frequency, with two narrow, and two wide output pulses per camshaft revolution that represent an image of the camshaft reluctor wheel. The frequency of the CMP sensor output depends on the velocity of the camshaft. The ECM decodes the narrow and wide tooth pattern to identify camshaft position. This information is then used to sequence the ignition timing and fuel injection events for the engine. The ECM also uses CMP sensor output information to determine the camshaft relative position to the crankshaft, to control the CMP actuator if equipped, and for limp-home operation.

Do you know how to test engine sensors ? Videos on youtube .

Jan 30, 2018 | Cars & Trucks

1 Answer

My98 Cadillac catera had running and starting problems I change crankshaft sensor and now it won't crank

Check for the following conditions:
• Poor connections/terminal tension at the CKP sensor harness connector or at the ECM harness connector. Refer to Electrical Diagnosis in Engine Electrical, and Troubleshooting Procedures for the proper procedure. Also, refer to Checking Terminal Contact in Engine Control Module Diagnosis .
• A loose CKP sensor.
• A Misrouted harness. Inspect the harness in order to ensure that the harness is not routed too close to any high voltage wires such as spark plug leads, or too close to any high current devices such as the alternator, the motors, the solenoids, etc.
• Check the sensor for a proper installation. A sensor that is not fully seated could cause an excessive air gap between the sensor and the reluctor wheel.
• The CKP sensor contacting the reluctor wheel.
• A loose or damaged crankshaft reluctor wheel.
Was a problem found and corrected?
DTC P0336 Crankshaft Position (CKP) Sensor Performance .
have it check for codes .
pull a plug wire an check for spark . Go to youtube an watch a few videos on test a crank sensor. An how to test fuel pressure .

Feb 02, 2016 | Cadillac Cars & Trucks

1 Answer

My 1996 Ciera Oldsmobile through a PO336 code?

Hi there:

DTC P0336 - Crankshaft Position Sensor A Circuit Range/Performance

The crankshaft position sensor (CKP) is usually a two wire sensor: a signal and a ground. The CKP sensor consists of (usually) a permanent magnent sensor that is mounted in front of a reluctor (toothed) wheel mounted to the crankshaft. As the reluctor wheel passes in front of the crank sensor, an A/C signal is produced that varies according to engine speed. The PCM (powertrain control module) uses this A/C signal to interpret engine RPM. Some crank sensors are hall-effect sensors instead of permanent magnent sensors. These are three wire sensors, provided with voltage, ground, and signal. They too have a reluctor wheel with vanes and "windows" that change the voltage signal to the PCM, providing a RPM signal. I will focus on the former, since they are simpler design and more common.

The crankshaft reluctor has a specific number of teeth and the PCM can determine the position of the crankshaft using only this sensor's signature pattern. The PCM uses this sensor to also determine cylinder misfires by measuring the reluctor teeth locations in the CKP sensor signal. In conjunction with the Camshaft position sensor (CMP) the PCM can determine timing of spark and fuel injection. If the PCM senses a loss of CKP sensor signal (RPM signal) even momentarily, P0336 may set.

Symptoms of a P0336 DTC may include:
Intermittent stalling & no start
No start
MIL (Malfunction Indicator Lamp) illumination
Intermittent misfire

Potential causes of a P0336 code include:
Bad crank sensor
Broken reluctor ring (missing teeth, debris lodged in ring)
Reluctor ring dislodged/stripped from it's stationary location
Wiring harness chafing causing short
Wiring open in CKP circuit

Possible Solutions: Crankshaft sensor problems are at times intermittent and the vehicle may start and run for some time until problem occurs. Try to reproduce the complaint. When engine stalls or if the engine will not start and continue to run, then crank engine while observing RPM reading. If there is no RPM reading, check for a signal coming out of the crank sensor. Using a scope is best, but since most DIYers don't have access to one you may be able to use a code reader or the tachometer to check for RPM signal.

Visually check the CKP harness for damage or cracking in the wiring insulation. Repair as necessary. Make sure the wiring isn't mis-routed near high voltage spark plug wires. Check for loose connection or broken lock at the sensor connector. Repair as necessary. Obtain a resistance spec for the Crank sensor. Remove and check it. If it doesn't pass, replace it. If it checks out okay, check the reluctor ring for damage, broken teeth, or debris lodged in the ring. Make sure the reluctor ring isn't dislodged. It should be stationary on the crankshaft. Carefully repair/replace as necessary. Note: some reluctor rings are located in the bell housing of the transmission or behind the front engine cover and cannot be easily accessed.

If the vehicle intermittently stalls and after stalling you have no RPM signal and you have verified the wiring to the CKP sensor is good, then try replacing the sensor. If that doesn't take care of it, and you can't access the reluctor ring, seek help from an automotive professional.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jun 27, 2012 | 1996 Oldsmobile Cutlass Ciera

1 Answer

I need to replace a camshaft sensor in a 99 silervado where is it

Easy one.

1)Disconnect negative battery cable
2) Disconnect spark plug wires and ignition coil wire from distribtor
3) Disconnect CMP (cam position) sensor harness connector from the distributor.
4) Remove distributor cap screws.
5) Remove distributor cap
6) Remove rotor screw
7) remove rotor
8) Align the square slot in the reluctor wheel with the CMP sensor.
9) remove CMP fasteners, then remove CMP.

  1. Align the square slot in the reluctor wheel with the CMP sensor.
  2. Insert the CMP sensor through the reluctor wheel slot.
  1. use new mounting screws for the sensor!!

good luck have fun...remember if you don't think you can do it, It's better to take it to a shop than to destroy an entire engine.

May 01, 2011 | 1999 Chevrolet Silverado 1500

3 Answers

1998 chevy express van 3500 front brakes and rear are new, front calipers are new but ABS light on dash is on, the front brakes smoke after a little while of driving. Thanks Joe

I'd first make sure the new pads are the correct size. Doesn't happen very often but maybe the parts person gave you the wrong size pads ( for the smoking problem). As for the ABS light, most newer cars will throw out codes if you wait too long to change them out, I would contact a chevy dealer or search online about reseting the code (light).

Dec 07, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

1993 gmc sierra 1500 abs brake light on

the most common cause is wheel speed sensor or sensor wiring not reading proper wheel is also possible the reluctor wheel inside front bearing is clogged with rust and debris and unable to send magnetic pulse. This can be tested with scanner to determine wheel in question.ohm meter can be used to test sensor and reluctor pulse.

Nov 28, 2010 | 1993 GMC Sierra K1500

1 Answer

Where is the cam sensor located

Removal & Installation 2.2L Engine To Remove:
  1. Lift the vehicle.
  2. Remove or disconnect the following:
    • Right wheel and tire assembly.
    • Camshaft position (CMP) sensor electrical connector. gm_truck_s10_cmp.gif

    • Bolt and CMP sensor.
To Install:
  1. Install or connect the following:
    • Camshaft position (CMP) sensor and bolt.
      1. Torque to: 7 ft. lbs. (10 Nm)
    • CMP sensor electrical connector.
    • Right tire assembly.
  2. Lower the vehicle.
4.3L Engine To Remove:
  1. Remove or disconnect the following:
    • Spark plug wires and ignition coil wire from the distributor 4.3L Distributor CMP electrical connector gm_trk_sil15_02-04_43_dist_cmp_elect_conn.gif

    • Camshaft position (CMP) sensor harness connector from the distributor
    • Distributor cap screws 4.3L Distributor cap removal gm_trk_sil15_02-04_43_dist_cap_rem.gif

    • Distributor cap 4.3L Distributor rotor screws removal gm_trk_sil15_02-04_43_dist_rotr_screw_rem.gif

    • Rotor screws
    • Rotor
    4.3L Align reluctor wheel slot with CMP gm_trk_sil15_02-04_43_algn_whl_slot_cmp.gif

  2. Align the square slot in the reluctor wheel with the CMP sensor 4.3L CMP sensor screws removal gm_trk_sil15_02-04_43_cmp_sensr_screw_rem.gif

  3. Remove or disconnect the following:
    • CMP screws 4.3L CMP sensor removal gm_trk_sil15_02-04_43_cmp_sensr_rem.gif

    • CMP sensor
To Install:
NOTE: Do not use the old cap, CMP sensor, and rotor screws. Use the replacement screws that have been coated with a thread locking compound.
  1. Insert the CMP sensor through the reluctor wheel slot
  2. Install or connect the following:
    • New CMP mounting screws and tighten the screws
      1. Torque to: 19 inch lbs. (2 Nm)
    • Rotor onto the reluctor wheel
    • New rotor screws and tighten the screws
      1. Torque to: 18 inch lbs. (2 Nm)
    • Distributor cap
    • New distributor cap screws and tighten the screws
      1. Torque to: 21 inch lbs. (2.4 Nm)
    • CMP sensor harness connector
    • Spark plug wires and ignition coil wire
  3. Test drive the vehicle to confirm the repairs
prev.gif next.gif

Aug 17, 2010 | 2000 GMC Jimmy

1 Answer

Applied brakes pulsate. front pads and rotors are good. rear brake pads are fair and rotors

If ABS is activating for no apparent reason then the most common causes are failed ABS wheel sensors or more commonly, cracked reluctor rings.

You won't usually see the crack in a reluctor ring, but it opens up when it rotates at running speeds. You can also get it to show with a simple fluorescent dye crack testing kit (not cheap to buy for a one-off job, but any decent garage or engineering workshop will have a kit to hand).

Unfortunately, reluctor rings are expensive as they usually come as an integral part of the driveshaft or hub assembly. Third party versions may be available and are less expensive (still a painful price though) but to fit them they must be heated until cherry red and then dropped into position. Get it wrong and you have to cut off your new and expensive ring and start again. Not really a DIY job unless you're very confident and experienced.

If the crack test proves negative, then ABS sensors are easy to fit and can be tested by swapping around to see if you can move the fault from one wheel to another or even from the front to the rear. Sensors are relatively cheap, but failures are far less common than with reluctor rings.

Fingers crossed for you that it's the easy/cheap fix.

May 27, 2010 | 2002 Audi A6

Not finding what you are looking for?
2003 Jeep Liberty Logo

Related Topics:

159 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

85178 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides