Question about 2004 Jeep Wrangler

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2004 jeep grand cherokee codep0244 small evap leak

How am i supposed to find small evap leak cant pass inspection

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  • Anonymous Mar 14, 2014

    coolant
    leaks

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  • Master
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Use carb cleaner and waft all vacuum lines and areas near evap can and when engine rpm changes you are close ...:) good luck

Posted on Oct 31, 2008

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1 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. Or the switch is faulty, or there is a large leak. Do you hear any hissing sounds under the jeep?

Oct 21, 2013 | 2004 Jeep Grand Cherokee

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Check engine codes


P0456 = small leak in EVAP system. First check the seal on the fuel cap and if the cap is installed well. When ok, check the rubber EVAP system hoses, which pass the rear axle, they tend to dry rott and start leaking.

Aug 12, 2013 | 2002 Jeep Grand Cherokee

1 Answer

What does code po456 means


codse p0456 refers to evaporative emission system-- very small leak detected.. probable causes -----mechanical fault---hose connections loose---EVAP pressure sensor.. I would look at the EVAP sensor as being faulty

Mar 10, 2013 | 2004 Jeep Grand Cherokee

1 Answer

How to fix obd 2 PO456 on jeep grand cherokee laredo 2002


Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause:
  • A small leak in any of the EVAP hoses or fuel tank hoses
  • A small leak in the purge valve or vent valve
  • The EVAP Canister may be leaking

Oct 09, 2012 | 2003 Jeep Grand Cherokee

1 Answer

2003 Jeep Grand Cherokee Laredo - Code P0456 EVAP leak


open hood and ck for broken vacuum hoses going to the purge valve(2 vacuum ports and a wiring connector)
on the drivers side between airbox and firewall
if good remove driver side rear tire and inspect hoses next to the gas tank and 3rd, the canister is in that wheel well also insp for cracked hoses there also, been working for jeep 12 years i charged people about 1 hour to correct this probem.

Dec 18, 2009 | 2003 Jeep Grand Cherokee

1 Answer

P0456 OBD code just appeared on a 2004 Jeep Grand Cherokee Laredo. Filled the gas tank and erased the code, but it's reappeared a week later.


That code definition is (evaporative system small leak detected). One of the most common reasons for this code is a faulty gas cap. The evap system is strictly designed to trap fuel vapors in the tank and not allow them to scape into the atmosphere. The vehicle keeps a constant vacume on the tank and when it is unable to hold that pressure it will set the code you have. Try buying a new gas cap-thats a cheap start-clear the code and see what happens. If the light comes back on you will have to bring it to a repair shop where they will tap into the Evap system and force smoke into it. They will then observe the Evap hoses and wherever it leaks smoke will be your problem.

Dec 03, 2009 | 2004 Jeep Grand Cherokee

1 Answer

03 Jeep Liberty - Evap system small leak


how about the filler neck. just had to replace mine and now its fine

Jun 17, 2009 | 2000 Jeep Grand Cherokee

1 Answer

Evap code sm. & lg. leak


it can because most vehicles work with a pressurized fuel system, some will even give you a check engine light if you don't have the gas cap on tight enough. i recommend at least 3 clicks

May 30, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Small evap leak


The evap leak is short for EVARORATIVE EMISSIONS SYSTEM, NOT AC EVAPORATOR, AC leaks do not cause the truck to fail emission, most likely the problem is a defective gas cap. Also the code you give (P0244) is a watse gate code, please provide the correct code.


P0244
Turbo/Super Charger Wastegate Solenoid A Range/Performance

Oct 31, 2008 | 2004 Jeep Wrangler

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