2002 Jeep Grand Cherokee OBD Code P1494 Issues

Tiny
ATLFAN65
  • MEMBER
  • 2002 JEEP GRAND CHEROKEE
  • 4.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
My car is putting out the code p1494 (evap leak detection pump pressure switch condition). I replaced the Leak Detection Pump and The code came back. I cannot find any vacuum leaks in the lines going to and coming from the LDP. Someone suggested checking the charcoal canister that is connected to the LDP but I have followed the lines until they disappear from sight past my rear axle. Where can I find this canister? What other methods should I try to find a leak? What else could cause this code?
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Tuesday, October 20th, 2015 AT 5:10 PM

3 Replies

Tiny
ATLFAN65
  • MEMBER
Both links do not work so does anyone have a response that might actually help me?
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Wednesday, October 21st, 2015 AT 3:49 AM
Tiny
ATLFAN65
  • MEMBER
Those links are the same and still did not load. You haven't answered a single one of my questions from the original post so I a suite you can't answer them. Is anyone else available to offer any real help?
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Wednesday, October 21st, 2015 AT 3:23 PM
Tiny
RIVERMIKERAT
  • EXPERT
The links work fine for me.

The first one is a picture showing where the charcoal canister sits. Your first question.

The second one is the diagnostic steps for the code you gave me, from Jeep Corp; your second question.

I suggest if your browser isn't opening referral links, you've got a problem with your browser.
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Thursday, October 22nd, 2015 AT 8:02 PM

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