P1494 jeep. 1996 Jeep Grand Cherokee: obd code p1494 and it..emission..contro...

I have a 2001 jeep Cherokee sport. The check engine code is p1494-

P1494: Evaporative emission (EVAP) leak detection pump -pressure switch: Wiring, hose leak/blockage, EVAP leak detection pump: P1495: Evaporative emission (EVAP) leak detection pump solenoid: Wiring open circuit/short circuit, hose leak/ blockage, EVAP leak detection pump solenoid: P1496: Engine control module (ECM) -5 volt output low: ECM: P1498SOURCE: IAC Valve Location - 1996 Jeep Grand Cherokee The idle air control valve is located on the back of the throttle body. It has an oval electrical connector and two torx screws holding it in. Unplug the connector, remove the two screws then lightly tap the body with a soft faced mallet to loosen it from the body.The main purpose of the LDP is to pressurize the fuel system for leak checking. It closes the EVAP system vent to atmospheric pressure so the system can be pressurized for leak testing. The diaphragm is powered by engine vacuum. It pumps air into the EVAP system to develop a pressure of about 7.5' H20 (1/4) psi.1999 Jeep Grand Cherokee 4.0L with P1494 code, how to repair? asked May 9, 2017 by anonymous. jeep; grand-cherokee; p1494; 0 votes. 1 answer 204 views. 2009 Jeep Grand Cherokee 4.7L with engine code p0300, how do I fix the code? asked Jul 12, 2017 by اسماعيل الكرغلي ...What is the Cost to Diagnose the Code P1494 Dodge? Labor: 1.0. The cost to diagnose the P1494 Dodge code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.check engine light coming on showing code p1494 | Find answers to your 1999 Jeep Grand Cherokee question from certified mechanics and auto experts. where is the leak detection pump pressure switch - 1999 Jeep Grand CherokeeAug 14, 2023 · Specifically, p1494 jeep refers to a Leak Detection Pump (LDP) issue that manifests as a switch or mechanical fault within your Jeep vehicle. Shedding light upon what triggers this error, examining the symptomatic indicators, and offering step-by-step, easy-to-follow solutions to fix the problem, this piece is a handy guide for dealing with ... OBDII/EOBD diagnostics trouble codes definition. If your car supports OBD II or EOBD, then you can already use almost 5000 generic OBDII codes. These codes are from PowerTrain series (P0XXX, P2XXX, P34XX), Body Series (B0XXX), Chassis series (C0XXX), Network series (U0XXX, U2XXX, U3XXX). Also there is a list of more than 13500 additional ...Sep 27, 2014 · 17970 Answers. SOURCE: code P1494. DTC P1494 - Leak Detection Pump Switch or Mechanical Fault. The causes are possibly an open or shorted switch sense circuit, a pump switch failure, or an open "fused ignition switch" output. First off, a model year 2001 is will still covered under the emissions warranty. The Jeep uses a pump to test the fuel vapor emission control system, and your pump is acting up. So the computer will not be able to test your system for vapor leaks. Please let me know if you would like troubleshooting procedures to determine the exact problem, and thanks for using FixYa. Trouble Code: P1494 EVAP Leak Detection Pump Switch Or ...Jan 3, 2020 · Engine code : P1494 Leak Detection Pump. Quick and easy fixFind me on Instagram! https:... In this video I diagnose and fix my check engine light in Project XJ. Engine code : P1494 Leak Detection ... OBDII/EOBD diagnostics trouble codes definition. If your car supports OBD II or EOBD, then you can already use almost 5000 generic OBDII codes. These codes are from PowerTrain series (P0XXX, P2XXX, P34XX), Body Series (B0XXX), Chassis series (C0XXX), Network series (U0XXX, U2XXX, U3XXX). Also there is a list of more than 13500 additional ...We offer replacement PCMs for every generation of Jeep Wrangler. Jeep Wrangler JL (2018+) Replacement PCMs. Call for Price. Call for Price. Jeep Wrangler JK (2007-2018) Replacement PCMs. $592.20 - $1,292.20. Select options. Jeep Wrangler YJ (1986-1995) Replacement PCMs. Call for Price.P1494 JEEP Description The Evaporative emissions system is designed to prevent the escape of fuel vapors from the fuel system. Leaks in the system, can allow vapors to escape into the atmosphere. The leak detection system tests for EVAP system leaks and blockage.A detailed description of how to remove and replace a crankshaft position sensor for all Jeep 4.0 engines. In most cases, a P0320 code is the result of a bad...1998-2001 Jeep Cherokee XJ: Evaporative Emissions Control System explained - How it Works and Where the Leak is + Test it Without a Smoke Machine! ['98-'01 X...P1494 JEEP Description The Evaporative emissions system is designed to prevent the escape of fuel vapors from the fuel system. Leaks in the system, can allow vapors to escape into the atmosphere. The leak detection system tests for EVAP system leaks and blockage.Code: P1494 Make: JEEP Description: P1494 JEEP EVAP Leak Detection Pump Pressure Switch Condition Possible causes: - Faulty Leak Detection Pump (LDP) - Leak Detection Pump (LDP) harness is open or shorted - Leak Detection Pump (LDP) poor electrical connection Solutions: - Carry out a Reset via CarDiag - Choose a better quality fuelThe P1494 code relates specifically to the evaporative emissions system in your Jeep Grand Cherokee. This system is designed to capture and store fuel vapors produced by your vehicle. When these vapors escape into the atmosphere, they contribute significantly to air pollution levels and must be prevented from doing so in order for your car to ...I have a 2001 jeep Cherokee sport. The check engine code is p1494- evap leak detection pump pressure switch. The jeep is hard to start some times as I have to spin the engine over for about 3-5 second … read morefix P1494 code Cleared once, replaced gas cap. Egine light came back on with the same code. - Jeep 2002 Grand Cherokee questionI 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 .040-inch. Read full answer.Jeep grand cherokee p0155 code p1494 For the P0155 code, check the fuse for the O2 heater circuit. The P1494 has to do with the EVAP leak detection pump pressure switch.P0300 and p1494 code. P0300 and P1494 replaced evap purge and gas cap. 2000 jeep grand cherokee laredo. Replace gas cap - Answered by a verified Jeep Mechanic. We use cookies to give you the best possible experience on our website.P1494 Jeep: Leak detection pump pressure switch or mechanical fault U either have a leaking fuel system or the pressure sensor at the gas tank is defective, I would replace the pressure sensor 1st. Read full answer. Jul 02, 2009 • 2000 Jeep Cherokee. 8 helpful. 1 answer.Read Also: How To Troubleshoot & Fix p1494 Jeep DTC Code? #4- Reprogram the Powertrain Control Module. The DTC or the Diagnostic Trouble Code can be set on the ambient temperature conditions of the jeep even when you have used the correct type of fluid with the correct fluid viscosity.Jeep liberty P1494 fault on 2002 liberty 3.7L pump pressure P1494 fault on 2002 liberty 3.7L pump pressure switch /mechanical fault, how do I determine or isolate the problem … read moreDec 22, 2022 · What Does Jeep Grand Cherokee Code P0303 Mean? Jeep Grand Cherokee P0303 definition: Cylinder 3 misfire detected. Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Diagnosis: A cylinder 3 misfire can be caused by anything from faulty […] flawlessco Discussion starter · Aug 14, 2012. ok so smog id coming up and good old yellow light is on. Code is P1494 Leak detection Pump. Dealer part for a few bucks under $100. i know where the unit is. (03 wrangler back rear fender on passenger side).1998-2001 Jeep Cherokee XJ: Evaporative Emissions Control System explained - How it Works and Where the Leak is + Test it Without a Smoke Machine! ['98-'01 X...Vocational, Technical or Tra... 26,201 satisfied customers. 1998 jeep grand cherokee: ltr..Leak..Mechanical Fault..oem. 1998 jeep grand cherokee 4.0 ltr code p1494 for Leak Detection Pump Switch or Mechanical Fault .... pump assy was replaced with oem pump … read more.Jeep: hoses..the car started to stall when the car..check engine light - Answered by a verified Jeep Mechanic. We use cookies to give you the best possible experience on our website. ... My OBD II code on a 200 Jeep Charokee Sport is P1494 - "Leak detection pump switch or mechanical fault."Apr 12, 2020 · P1494- 2 XJ's fixed. Another heads-up post. Both my XJ's had the recurring P1494 code. That is the evap pump and/or vacuum lines. I checked both XJ's from front to back not finding any issues. Then I realized the big vacuum fitting at the intake manifold was squishy and soft. It would pop off if the engine backfired. 1999 jeep cherokee. just bought it. was idling low and check engine light came on today. shows code p1494. research shows it could be Leak Detection Pump Sw or Mechanical Fault. I am debating on wheth … read moreBuy and sell items locally or have something new shipped from stores.2001 jeep cherokee has a p1494 code and a p0301 code seems to be running fine but want pass emissions. 0301 is cyclinder 1 miss fire,check coil pack and spark plug,plug first,1494 is the fan relay,It's in the right front of the engine compartment.Check Engine Light - Easy Self Diagnosis 1999-2004 Jeep Grand CherokeeERROR CODES P0443, P1494, P0751, P1686,P0523 jeep Grand Cherokee WJ Check Engine CodesH...P1494 (M) Leak Detection Pump Sw or Mechanical Fault: Incorrect input state detected for the Leak Detection Pump (LDP) pressure switch. P1495: Leak Detection Pump Solenoid Circuit: An open or shorted condition detected in the Leak Detection Pump (LDP) solenoid circuit. P1496: 5 Volt Supply, Output Too LowLabor: 1.0. The cost to diagnose the P1294 Jeep code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.P0344 JEEP - Camshaft Position Sensor Intermittent Interruption Bank 1 Sensor 1 Read more: https: ... p1494; jeep; grand-cherokee +1 vote. 2 answers 1.6k views. Where is the P0138 (B1-S2) located on a 2004 Jeep Grand Cherokee 4.0L? asked Oct 21, 2017 by anonymous. jeep; grand-cherokee;P1494 is for an issue with the evaporative emissions system's leak detection pump. This could be a handful of things and it will require some testing to determine exactly what is wrong. The problem could be loss of vacuum to the LDP. It could be a wiring issue on any of the pump's circuits. The problem may be the LDP itself.Mar 26, 2022 · three_jeeps · #3 · Mar 26, 2022. MountainAME said: P1489 and P1490 codes for the high and low speed fan control relay circuit malfunction. The relays for the 2004 are in the fuse box under the hood. IDK, but I doubt the codes would prevent the vehicle from starting. Seems odd that both relays have a fault. subject regarding misdiagnosed leak detection pump systems with diagnostic trouble codes p1494, p0442 p0455, or p0456. ... subject regarding airbag / clock spring service for various models ...LEAK DETECTION PUMP SYSTEMS (, P0442, P0455, P0456), Jun 10, 2010 • 2001 Jeep Grand Cherokee. P1494 means Leak Detection Pump Switch or Mechanical Fault - This code appears when there's an issue with the EVAP System (fuel tank fumes) This can be caused by a improperly secured gas cap, faulty gas cap, crack in the vacuum line, etc.Torque Staff Report. This method is used to retrieve OBD I and OBD II diagnostic trouble codes from your YJ, TJ, XJ, ZJ, and early WJ Jeep models. Insert the key into the ignition. Turn the ignition On-Off-On-Off-On within 5 seconds. Record the 2-digit DTC as displayed by the flashing MIL.P1494 is the code for the leak detection pump and or system, which is part of the early evaporative emission system. (Fuel tank fumes) It's there to allow the computer to run an integrity test of the fuel tank, lines and carbon canister's ability to contain all of the fumes coming from the tank and all line associated with the system.Code P1281 Meaning. P1281 is a Diagnostic Trouble Code (DTC) that could mean an issue with your coolant level/mixture or an out-of-spec air-fuel ratio. Your engine coolant fails to reach normal operating temperatures while driving. For some vehicles, the DTC traces back to a problem with drivetrain sensors, fuel system components, or running ...SOURCE: 2001 jeep cherokee has a p1494 code and a p0301. 0301 is cyclinder 1 miss fire,check coil pack and spark plug,plug first,1494 is the fan relay,It's in the right front of the engine compartment. Kind of behind and below the RF headlamp and in front of and below the fuse box. Easy to replace, just unplug it and plug the new one in.ZJ Limited. 17970 Answers. SOURCE: code P1494. DTC P1494 - Leak Detection Pump Switch or Mechanical Fault. The causes are possibly an open or shorted switch sense circuit, a pump switch failure, or an open "fused ignition switch" output. First off, a model year 2001 is will still covered under the emissions warranty.TROUBLE SHOOTING P1495 CODE 04 GRAND CHAROKEE - Answered by a verified Jeep Mechanic. We use cookies to give you the best possible experience on our website. ... Grand cherokee: I need to know what trouble code p1494..jeep..laredo.p1495 Present After Fix. So I recently had the p1495 code (LDP solenoid CKT) pop up in my 1999 4.0l and I saw that it was recommended to replace the Leak Detection Pump itself. However, once I replaced it, checked the vacuum lines, and cleared the codes, p1495 came back up.What does the code P1494 means on my 99 jeep grand cherokee. LEAK DETECTION PUMP SYSTEMS (P1494, P0442, P0455, P0456), Read full answer. Jun 10, 2010 • 2001 Jeep Grand Cherokee. 1 helpful. 1 answer. Codes for durango p0443-0753-1765-1494.2008 Jeep Grand Cherokee SRT 6.1L with code B2100, ... 1999 Jeep Grand Cherokee 4.0L with engine code P1494, what is the average cost of repair? asked Jul 26, 2018 by Scott. p1494; jeep; grand-cherokee; 0 votes. 1 answer 421 views. 2004 Jeep Grand Cherokee 4.7L with code P0080, what is it and what does it do?codes p1494 code p1494 View All » Question about 2001 Dodge Ram 1500 Truck 2WD. 1 Answer . I pulled the codes p1494 is what i got auxilary emmition control what is the most common part to go that i should replace. Posted by sanuzdar on May 04, 2010. Want Answer 0 ...Master. 2,006 Answers. The code refers to the leak detection pump that is part of the gasoline vapor control system which is for pollution minimization. It says either that the pump switch or mechanical operation is faulty. According to a Chrysler manual I have, you would find the pump, probably on the underside of the vehicle by tracing the ...The Dodge P1494 engine light code means Leak Detection Pump Switch or Mechanical Fault. A proper diagnosis must be done, you can't simply replace the LDP and expect that to fix the problem. A proper diagnosis must be done, you can't simply replace the LDP and expect that to fix the problem.2001 Jeep Grand Cherokee Limited 6 Cyl 4.0L. Engine Light Fault Code P1494. Was recommended to replace the Leak Detection Pump but it was only available through a Dealership, so that's why I'm online searching for info.4.75. (12) Quadratec Winch Ready Bull Bar Front Bumpers for 97-06 Jeep Wrangler TJ & Unlimited. In Stock. From $649.99. 4.60606. (33) More choices available. Quadratec QR3 Dual-Tube Rear Bumper for 87-06 Jeep Wrangler YJ, TJ & Unlimited.p1494; p1196; jeep; cherokee; 0 votes. 1 answer 215 views. I have a 1997 Jeep Wrangler 4.0L with engine code P1494, but the EVAP is OK. asked Apr 13, 2018 by john. jeep; wrangler; p1494 +1 vote. 2 answers 337 views. 2000 Jeep Grand Cherokee 4.0L 4x4 with engine code p0702. asked Jun 28, 2018 by anonymous. jeep; grand-cherokee; …Jan 15, 2011 · P1494 (M)Leak Detection Pump Sw or Mechanical Fault. Incorrect input state detected for the Leak Detection Pump (LDP) pressure switch. The Evaporative LDP switch may be bad or the pump itself has a problem. Check the pump, the wire connections, and the hoses attached to it. The Evaporative emissions system is design to prevent the escape of ... What dose p1494 mean and what dose the part looks like - Answered by a verified Jeep Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.What is the Cost to Diagnose the Code P1594 Jeep? Labor: 1.0. The cost to diagnose the P1594 Jeep code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.P1281 is a Diagnostic Trouble Code (DTC) that could mean an issue with your coolant level/mixture or an out-of-spec air-fuel ratio. Your engine coolant fails to reach normal operating temperatures while driving. For some vehicles, the DTC traces back to a problem with drivetrain sensors, fuel system components, or running too lean/rich.Edit: you need a multi-meter. Leak Detection Pump P1495 LDP, not related to charging system, not to say that the low battery state didn't cause the computer to trip this code (unlikely). Check voltage at alternator with engine running, should be at least 12.5 vdc (usually between 13 - 14 vdc) check again at battery terminal, make sure you put the lead on the terminal not the clamp for the cable.P1494 Jeep EVAP Leak Detection Pump Pressure Switch Condition. Read full answer. Feb 17, 2018 • Jeep Grand ... Check the answer in other post mine: Grand Cherokee Jeep code P149 4 Hope helps (remember to rate this). Read full answer. Sep 30, 2010 • 1999 Jeep Grand Cherokee. 1 helpful. 1 answer. My check engine light is on - Took it to auto ...Sep 21, 2014 · 1999 jeep cherokee. just bought it. was idling low and check engine light came on today. shows code p1494. research shows it could be Leak Detection Pump Sw or Mechanical Fault. I am debating on wheth … read more A detailed description of how to remove and replace a crankshaft position sensor for all Jeep 4.0 engines. In most cases, a P0320 code is the result of a bad...Trouble code P1494 my check engine light is on ,the code it spit out was p1494. a friend of mine looked up the code - Jeep 2002 Grand Cherokee question Search Fixya Press enter to search.I have a 2001 jeep Cherokee sport. The check engine code is p1494- evap leak detection pump pressure switch. The jeep is hard to start some times as I have to spin the engine over for about 3-5 second … read more**Want to own the tools I use ?? Click on the amazon link below to get my top 5 Tools I use**Automotive Test Light- https://amzn.to/3z1PdxaFlexible Backprobe...1999 Jeep Grand Cherokee 4.0L with P1494 code, how to repair? asked May 9, 2017 by anonymous. jeep; grand-cherokee; p1494; 0 votes. 1 answer 366 views. 1999 Jeep Grand Cherokee 4.0L with engine code P1494, what is the average cost of repair? asked Jul 26, 2018 by Scott. p1494; jeep; grand-cherokee +1 vote.P1494 JEEP Description The Evaporative emissions system is designed to prevent the escape of fuel vapors from the fuel system. Leaks in the system, can allow vapors to escape into the atmosphere. The leak detection system tests for EVAP system leaks and blockage.The TPS sends the throttle position information back to the PCM on this signal wire. When the throttle is closed the signal is near .45 volts. At WOT (Wide Open Throttle) the TPS signal voltage will approach a full 5 volts. When the PCM sees a voltage that is higher than the normal upper limit, P0123 will set.Torque Staff Report. This method is used to retrieve OBD I and OBD II diagnostic trouble codes from your YJ, TJ, XJ, ZJ, and early WJ Jeep models. Insert the key into the ignition. Turn the ignition On-Off-On-Off-On within 5 seconds. Record the 2-digit DTC as displayed by the flashing MIL.What does the code P1494 means on my 99 jeep grand cherokee. LEAK DETECTION PUMP SYSTEMS (P1494, P0442, P0455, P0456), Read full answer. Jun 10, 2010 • 2001 Jeep Grand Cherokee. 12 helpful. 2 answers.P1494 is a DTC code that can appear on the onboard computer of your Jeep. The code indicates ‘ Leak Detection Pump Pressure Switch Condition .’ Simply put, this code indicates a problem with the engine’s evaporative emission control system, which stops harmful emissions from the engine from entering the atmosphere.Get the best of Jeep Forum on our official app. Check engine light on, Code is P1494 ??? Jump to Latest Follow 6216 Views 2 Replies 3 Participants Last post by creeperjeep, Jan 9, 2005. 4. 47427 Discussion starter · Jan 9 ... Code is: p1494 Thanks . Reply. Save. 1 - 3 of 3 Posts. A.See full list on jeepadvices.com Regular gas and last oil change was about a month - Answered by a verified Jeep Mechanic. We use cookies to give you the best possible experience on our website. ... won't open are you sure your looking at P1494 and not P1493 I got the file to open but it says its for code P1492 not P1494.p1494; jeep; grand-cherokee +1 vote. 2 answers 1.7k views. On my 1999 Jeep Grand Cherokee 4.0L, how to repair the engine code P0523? asked Jul 30, 2018 by SCOTT. p0523; jeep; grand-cherokee; 0 votes. 1 answer 655 views. 2001 Jeep Cherokee 4.0L with engine codes P1494 and P1196. asked Oct 28, 2017 by anonymous. p1494; p1196; jeep;Colin Stickland. Chrysler Master. 22,509 Answers. P1494 Leak detection pump pressure switch or mechanical fault. P1495 Leak detection pump solenoid circuit. you have a problem with the fume extraction circuit like a motor or something. Posted on Apr 24, 2011.The video focuses on the basic Jeep specific diagnostic error code.Contents:0:21 Basic DTC analysis according to OBD2 protocol standard.1:48 Insight into pro...SOURCE: 2001 jeep cherokee has a p1494 code and a p0301. 0301 is cyclinder 1 miss fire,check coil pack and spark plug,plug first,1494 is the fan relay,It's in the right front of the engine compartment. Kind of behind and below the RF headlamp and in front of and below the fuse box.Thanks. I had a P1494 code a few days ago on my 2003 Rubicon. After some inspection I found a 1/4" rubber elbow cracked that connects a line coming from the back of the vehicle, probably from the gas tank or the evaporator canister, I dont know, to the intake manifold. After replaced it everything it's ok now. It's a $6 part and easy to replace.What is the Cost to Diagnose the Code P0149? Labor: 1.0. The cost to diagnose the P0149 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type.May 2, 2018 · Chrysler has an error code P1494. This is a code that is thrown up when the Leak Detection Pump can not do the job it is intended for, which is keeping our ... 1999 Jeep Grand Cherokee 4.0L I6 with engine code P1494, what is the average cost of repair? Vehicle: 1999 Jeep Grand Cherokee 4.0L I6.SOURCE: 96 dodge caravan code p1494 P1494 Leak detection pump pressure or mechanical fault, hope this helps. Posted on May 15, 2009what does the code p1494 means for a 2000 jeep grand cherokee laredo. Answered in 9 minutes by: DISCUSSION: DTC not equal to freeze frame DTC. Wiring harness intermittent problem. Wiring harness observable problem. LDP switch sense circuit open. LDP switch sense circuit shorted to ground. Leak detection pump.fix P1494 code Cleared once, replaced gas cap. Egine light came back on with the same code. - Jeep 2002 Grand Cherokee questionFirstly, you must locate the OBD scanner port in your Jeep model. Then, connect your OBD scanner after turning the ignition. Step 2: Press Enter on the Scanner. You will now need to press the enter button on the scanner, which will build the connection. Step 3: Identify the codes.three_jeeps · #3 · Mar 26, 2022. MountainAME said: P1489 and P1490 codes for the high and low speed fan control relay circuit malfunction. The relays for the 2004 are in the fuse box under the hood. IDK, but I doubt the codes would prevent the vehicle from starting. Seems odd that both relays have a fault.Oct 7, 2009 · P1494 on 2003 jeep liberty. that code is manufacturer auxiliary control emissions control Read full answer. Oct 13, 2012 • Cars & Trucks. 1 helpful. 1 answer. . P1494 (M)Leak Detection Pump Sw or Mechanical Fault. Incorrect inpAre you planning a trip from Sedona to Las Ve P1494 Jeep. By John Rony August 14, 2023 August 14, 2023. For those of you battling with the agonizing "p1494 jeep" engine light, rest assured, you are not alone. The P1494 code is a diagnostic trouble code (DTC) that is universally used to identify specific problems with your vehicle. Specifically, p1494 jeep refers to a Leak Detection ...P1494 Jeep: Leak detection pump pressure switch or mechanical fault U either have a leaking fuel system or the pressure sensor at the gas tank is defective, I would replace the pressure sensor 1st. Read full answer. Jul 02, 2009 • 2000 Jeep Cherokee. 1 helpful. 1 answer. Imagine cruising down the open road, the wind in your hair and the Experience Jeep Forum on the new Fora Communities app for iOS & Android! Get the best of Jeep Forum on our official app. Check Engine Code P1494. Jump to Latest Follow 16437 Views 1 Reply 2 Participants Last post by LeftOfCenterXJ, Jun 23, 2009. T. typer1122 Discussion starter · Jun 23, 2009. Add to quote; Share Only show this user (Leak ...What mean p1494 on 97 Jeep Grand Cherokee limited? Trouble code P1494 means: Leak detection pump pressure switch or mechanical fault. What are Codes p1494 p1495 voyager 1996? No spark, no injector pulse, no fuel pump operation, no communic...

Continue Reading