2002 Jeep Liberty Logo
Posted on Dec 14, 2010
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I have a 2003 jeep liberty giving the code P1494

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Jambam

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  • Posted on Dec 14, 2010
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Http://autorepair.about.com/library/faqs/bl010h.htm The Jeep should still be covered under the 10 year emissions warranty. Bring it in to the dealer.

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  • Jeep Master 14,092 Answers
  • Posted on Dec 14, 2010
Jonah Oneal
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CODE P1494 - EVAP LEAK DETECTION PUMP SWITCH OR MECHANICAL FAULT. POSSIBLE CAUSES / LDP SWITCH SIGNAL CIRCUIT OPEN OR SHORTED TO GROUND/ LDP SWITCH POWER CIRCUIT IS OPEN TEST POWER TO FUSED IGNITION / LDP VACUUM HOSE IS CLOGGED LOOSE OR RESTRICTED / LDP ASSEMBLY IS DAMAGED OR HAS FAILED THE SWITCH HAS FAILED.

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Anonymous

  • 149 Answers
  • Posted on Sep 17, 2010

SOURCE: i have a 2002 jeep

p1494
Leak detection pump pressure switch or meahanical fault
could be a leak in the evap system.hard to tract down becuse a large leak ishole small as 0.040-inch.

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allobd2

  • 1207 Answers
  • Posted on Dec 04, 2012

SOURCE: I have a 2003 jeep liberty limited edition. The check engine light came on. I took it to have a diagnostic and came back with 2 codes P1294 and P1494

P1294 Injector High Side Open - Bank 2/Target idle not reached
P1494 SPCUT Solenoid Circuit Malfunction
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NEXIQ 125032

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P1494 on 2003 jeep liberty

that code is manufacturer auxiliary control emissions control
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P1494

SEE this and fix it. God bless you
P1494 "Incorrect input state detected for the Leak Detection Pump (LDP) pressure switch." replace switch.
However test the following.
inspecting the vacuum lines first and found the problem. There are two vacuum lines that run from the passenger side of the engine bay from the LDP, along the fire wall, to the drivers side of the engine and connected to the engine manifold (bellow the air fiter intake duct). One of the 90 degree boots became deteriorated and fell off the manifold coupling. Replaced the elbow, erased the PCM code (MIL light)
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What is code p1941 for on 2003 jeep liberty

Diagnostic Test Code (DTC) P1941 is NOT a VALID code for a 2003 Jeep Liberty. Are you sure you are reading (and posting) the code correctly?

Also, when asking about DTCs it is really helpful to also mention which engine your vehicle is equipped with.
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I have a 2002 jeep liberty limited 3.7 code p1494 how to fix it and where is it

p1494
Leak detection pump pressure switch or meahanical fault
could be a leak in the evap system.hard to tract down becuse a large leak ishole small as 0.040-inch.
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Whats the oil capacity for a 2003 jeep liberty?

2003 JEEP LIBERTY 2.4L 4-cyl Engine Code [
Engine Oil Grade 1....API* SAE 5W-30 is preferred.
CAPACITIES:
Engine, with filter..........4.7 liters

2003 JEEP LIBERTY 3.7L 6-cyl Engine Code

Engine Oil Grade 1......API* SAE 5W-30 is preferred.

CAPACITIES:
Engine, with filter..........4.7 liters

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