02 Jeep Grand Cherokee - JeepForum.com
 
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post #1 of 3 Old 08-20-2008, 12:06 PM Thread Starter
vvranup
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Join Date: Jul 2006
Location: St Louis
Posts: 1
02 Jeep Grand Cherokee

Hell All,
I have a 02 Jeep Grand Cherokee and i recently got a check engine light on the dashboard, i got to Autozone and they gave me a code of P0442.
which says

Definition:
EVAP (Evaporative Emission System) small leak/no flow condition
Explanation:
The evaporative emission system is monitored.
Probable causes:
1. - Defective or loose fuel cap
2. - EVAP canister or hose cracked-not connected
3. Purge or vent solenoid defective
4. Vacuum leak at engine


My jeep has got more than a 100,000 miles on it.

Please suggest if replacing the fuel cap will rectify this situation.


Also can someone suggest me of the best place to get my Jeep serviced at a nominal cost. I live in St Louis.

Thanks to one and all.

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post #2 of 3 Old 08-20-2008, 05:36 PM
02WJOverland
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2008 XK Commander 
 
Join Date: Jul 2007
Location: Midlothian
Posts: 102
Gas Cap...I have had to replace mine twice in the last 6 years.

08 Commander Limited
02 Grand Cherokee Overland-Retired @ 198K
98 Cherokee-Traded @80K

"I am buying a new Jeep, just one piece at a time"
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post #3 of 3 Old 08-20-2008, 06:18 PM
keith20mm
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2000 WJ 
 
Join Date: Jul 2008
Location: Arkansas
Posts: 222
.. or, jiggle the center hole in the inside of the cap to re-seat the vent rubber with a ball point pen or small punch. .(or, in the case of my wife, with the weak wrist...actually screw the cap down till it clicks a few times)
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