Question about 2005 Jeep Liberty

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04 Jeep liberty limited just wouldn't start one day. diagnosed it change the idler air control sensor, TPS, Camp Shaft sensor, Crank Shaft sensor, starter, and brand new battery but it still wont start and battery got drained just by trying to start it??? help

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  • Expert
  • 133 Answers

Do you use obd2 code scanner check the engine system and find out fault codes? How do you diagnose the Jeep?

Posted on Aug 01, 2013

  • Robert Bigtas Aug 01, 2013

    yes I did and it gave me all the codes and that what I replaced but it still wont start now battery is weak?

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Posted on Jan 02, 2017

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SOURCE: 2000 Jeep Grand Cherokee remote starter keeps draining battery

A Simple Battery DRAW test w/ test light to Determine there is a Draw on Battery. With EVERYTHING OFF will determine that Something is Drawing Battery Down. Test light "Clamp on Neg" At Bat And the POKER AT CABLE, if it lights up you have a Draw
To Determine were it is, Pull Fuses out 1 by 1 Watching Light puting Fuse back in When you Pull a Fuse that turns the Test light off you found the Circuit that is Draining the Battery if it is A Circuit that Remote Starter is Connect to refer to Installer to Correct the Problem

NOTE TEST Light Connected this way and Electrical System in Tact Light WILL NOT BE LIT at ALL
Dont forget to keep doors closed during this Procedure

Posted on Jan 14, 2009

motor1258
  • 6674 Answers

SOURCE: 1998 jeep grand cherokee laredo wont start right

At least take the time to remove your computer connector & check & clean all contacts with battery disconnected, negative first.. Clean good with an electrical cleaner spray can. re-connect then re-connect battery, with negative last.

Posted on Jan 29, 2009

  • 1 Answer

SOURCE: 1993 jeep grand cherokee will not start

Check to see it maybe a head gasket .mine was

Posted on Feb 28, 2009

  • 371 Answers

SOURCE: 95 jeep wrangler cranks but won't start. replaced

After you crank it for a while, take out one of the spark plugs. If it is dry then you have a fuel issue. If it is wet and smells like gas you have a spark issue. Find that out and report back and then we can get more specific.

Posted on Dec 19, 2009

  • 2926 Answers

SOURCE: 96 jeep grand cherokee limited

I could be the CKP (crank sensor), but it could also be several other factors including the TPS. The correct way to start a diagnosis would be to see if any trouble codes are stored in memory. I'm assuming all basic ignition components are ok ; spark plugs, etc.

Posted on Aug 15, 2010

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Where is the crank sensor on a 2002 jeep liberty automatic?


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Dec 01, 2015 | Jeep Cars & Trucks

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2002. Why won't it start?


Could be problem with cam shaft sensors and crank shaft sensor.

Dec 01, 2015 | 2002 Jeep Liberty

1 Answer

Jeep cranks but does not start


Hi, First replace your plugs. Second check ignition coil(s) one maybe bad. replace with new. If all else is good, have your mechanic check the computer codes. (code scanner) Many of todays cars and trucks have computers to run and control the engine. (management system). Good luck

Feb 04, 2015 | 2004 Jeep Liberty

1 Answer

2005 jeep liberty air bag and seat belt stays on why


I have an 04 liberty limited 4x4 ... I was told there's a recall on the air bag to be fixed at dealerfor free after Jan. 2013 ... Good Luck !!!

Dec 01, 2012 | 2004 Jeep Liberty

1 Answer

Where is the thorttleposition sensor on 2001jeep cherokee


The 3 wire Throttle Position Sensor (TPS) is mounted on the throttle body and is connected to the throttle blade.
The TPS is a 3wire variable resistor that provides the Powertrain Control Module (PCM) with an input signal (voltage) that represents the throttle blade position of the throttle body. The sensor is connected to the throttle blade shaft. As the position of the throttle blade changes, the resistance (output voltage) of the TPS changes.
The PCM supplies approximately 5 volts to the TPS. The TPS output voltage (input signal to the PCM) represents the throttle blade position. The PCM receives an input signal voltage from the TPS. This will vary in an approximate range of from .26 volts at minimum throttle opening (idle), to 4.49 volts at wide-open throttle. Along with inputs from other sensors, the PCM uses the TPS input to determine current engine operating conditions. In response to engine operating conditions, the PCM will adjust fuel injector pulse width and ignition timing.
The PCM needs to identify the actions and position of the throttle blade at all times. This information is needed to assist in performing the following calculations:

selectachapter.gif

Cherokee, Grand Cherokee, 1999-2005
Throttle Position Sensor

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Operation

The 3 wire Throttle Position Sensor (TPS) is mounted on the throttle body and is connected to the throttle blade.
The TPS is a 3wire variable resistor that provides the Powertrain Control Module (PCM) with an input signal (voltage) that represents the throttle blade position of the throttle body. The sensor is connected to the throttle blade shaft. As the position of the throttle blade changes, the resistance (output voltage) of the TPS changes.
The PCM supplies approximately 5 volts to the TPS. The TPS output voltage (input signal to the PCM) represents the throttle blade position. The PCM receives an input signal voltage from the TPS. This will vary in an approximate range of from .26 volts at minimum throttle opening (idle), to 4.49 volts at wide-open throttle. Along with inputs from other sensors, the PCM uses the TPS input to determine current engine operating conditions. In response to engine operating conditions, the PCM will adjust fuel injector pulse width and ignition timing.
The PCM needs to identify the actions and position of the throttle blade at all times. This information is needed to assist in performing the following calculations:


Ignition timing advance Fuel injection pulse-width Idle (learned value or minimum TPS) Off-idle (0.06 volt) Wide Open Throttle (WOT) open loop (2.608 volts above learned idle voltage) Deceleration fuel lean out Fuel cutoff during cranking at WOT (2.608 volts above learned idle voltage) A/C WOT cutoff (certain automatic transmissions only)


Removal & Installation

3.7L & 4.0L

  1. Disconnect TPS electrical connector.
  2. Remove TPS mounting screws.
  3. Remove TPS.

To Install:
The TPS is mounted to the throttle body. The throttle shaft end of throttle body slides into a socket in the TPS. The TPS must be installed so that it can be rotated a few degrees. (If sensor will not rotate, install sensor with throttle shaft on other side of socket tangs). The TPS will be under slight tension when rotated.
  1. Install TPS and retaining screws.
  2. Tighten screws to 7 Nm (60 inch lbs.) torque.
  3. Connect TPS electrical connector to TPS.
  4. Manually operate throttle (by hand) to check for any TPS binding before starting engine.

4.7L
  1. Remove air duct and air resonator box at throttle body.
  2. Disconnect TPS electrical connector.
  3. Remove two TPS mounting bolts (screws).
  4. Remove TPS from throttle body.

To Install:
The throttle shaft end of throttle body slides into a socket in TPS. The TPS must be installed so that it can be rotated a few degrees. If sensor will not rotate, install sensor with throttle shaft on other side of socket tangs. The TPS will be under slight tension when rotated.
  1. Install TPS and two retaining bolts.
  2. Tighten bolts to 7 Nm (60 inch lbs.) torque.
  3. Manually operate throttle control lever by hand to check for any binding of TPS.
  4. Connect TPS electrical connector to TPS.
  5. Install air duct/air box to throttle body.

Hope this helps

Dec 31, 2011 | 2001 Jeep Grand Cherokee

1 Answer

96 jeep grand cherokee limited v-8. changed fuel filter,pump,coil,distrib. cap,when going over 50 -60 with press. on it starts to spit and sputter like not getting enough fuel. any suggestions someone said...


I could be the CKP (crank sensor), but it could also be several other factors including the TPS. The correct way to start a diagnosis would be to see if any trouble codes are stored in memory. I'm assuming all basic ignition components are ok ; spark plugs, etc.

Aug 15, 2010 | 1996 Jeep Grand Cherokee

5 Answers

2002 Jeep Liberty 3.7L Engine Swap to newer 2004 engine


Has anyone made this work yet? I have the same problem 2002 jeep 3.7 and just installed a 04 motor. Timing is off. Some one had a good idea of mounting the crank gear to the out side of the harmonic ballancer and mounting the sensor with a bracket. What about the cam gear on the left side. Does the timing cahain have to come off to remove it? Or has any one swaped the wiring harnest, and computer.
Please email me back. pcardoso@cogeco.ca Thanks for your help.

Jun 25, 2009 | 2002 Jeep Liberty

1 Answer

Go to stop rpms drop jeep liberty shuts off


Here are some things that I have run into. First any sensor cam/crank/tps etc..) that has a reference voltage from the pcm can cause this issue these sensors,(ESPECIALLY THE CRANK SENSORS or CAM Sensor) CAN SHORT OUT INTERNALLY. THIS WILL CAUSE A NO START CONDITION AND A "NO COMMUNICATION" ISSUE WITH THE PCM causing stalling. here are some things that I have run into. This condition has caused numerous unneeded pcm replacements. It gets difficult to diagnose when its an intermittent problem.sometimes a tech will install the pcm and let the jeep leave. Then when temp is right, the sensor shorts and it all happens again. Often by the time the jeep shows up on the hook the engine has cooled and the short is gone. In this case the tech has nothing to go on. YOU MOST LIKELY WONT HAVE A CODE HERE. THIS IS HOW I DIAGNOSE THE ISSUE. WHEN THE CONDITION IS PRESENT (NO COMMUNICATION") with THE KEY ON, START DISCONNECTING EACH SENSOR THAT HAS A REFERENCE VOLTAGE. START WITH THE CRANK SENSOR. IF YOU SEE THE SCANNER GET COMMUNICATION, THEN YOU FOUND THE SHORTED SENSOR.this CAN BE A PAIN IN THE @** IF THE CONDITION IS INTERMITTENT.
PLEASE NOTE: IT IS EXTREMELY RARE THAT THE PCM ITSELF HAS CAUSED THIS CONDITION. 99% OF THE TIME ITS A SENSOR SHORTING OUT, WIPING OUT ALL COMMUNICATION. ALSO NOTE:I HAVE NEVER SEEN THIS CONDITION ACTUALLY DAMAGE THE PCM. ONCE THE SHORTED SENSOR IS REPLACED, THE PCM IS FINE. THERE IS A RESISTOR IN THE PCM THAT PROTECTS IT FROM THIS. Good Luck and I Hope this will help resolve your issue. Please Rate Me. For any further assistance you can always ask me
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Mar 22, 2009 | 2003 Jeep Liberty

1 Answer

2004 liberty


If your engine light came on, the engine module could have stored a code.
You need to have a scanner to check what code it is and that will point you toward the solution.
Possible causes could be (crank sensor, tps sensor or oxygen sensor).
Don't go replacing parts until you scan the vehicle for codes first.

Oct 03, 2008 | 2003 Jeep Liberty

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