Jo Bo

On at least a 96 and 99 xj's I've owned there's a little pump like thing on
the firewall to the right of the engine. If you put your hand on it with the
engine running you should hear/feel it do a thump thump type thing. It pulls
a vacuum on the fuel tank. So if there's a bad rubber line anywhere around
it that may be your problem. Harbor Freight has a code scanner that will
read and clear codes for $39.
http://www.harborfreight.com/cpi/cta...emnumber=46030

JoBo


"kokonutty" <islander2000@msn.com> wrote in message
news:1150849674.175247.166350@m73g2000cwd.googlegr oups.com...
>
> kokonutty wrote:
>> kokonutty wrote:
>> > 2001 XJ (58,000 miles) failed and has codes P0442 (small leak) and
>> > P0455 (large leak) in the evaporative emissions system. Other than the
>> > gas cap, does anyone have any ideas what to look for first? Thanks.
>>
>>
>> Thanks for all the replies and, as my first message stated, I was
>> looking for things to look for if I checked out the gas cap and needed
>> to go beyond there. I was trying to have Plan B, C, etc. in mind
>> before starting. Turns out even that was more than I needed. I
>> disconnected the battery to reset the codes and got none after making
>> sure the gas cap was tight. After a few days and a number of trips the
>> light is still out. That "problem" is over for now.
>>
>> This place had been recommended to me as a place that is liberal in
>> getting cars to pass, but they didn't even reset the codes and check
>> out the cap and kind of waffled when I asked about the cap so I'm not
>> going back there. I know my brakes are not that great but now I'm also
>> questioning whether I need the rotors replaced now as they said or I
>> can go a while first. I was reading the newspaper in the office when
>> they pulled the wheel and "determined" I needed replacements but they
>> didn't call me in to show me. So I need to get reinspected in the next
>> two days and if I need brakes, I'll take a look and get them (original
>> rotors, pads at 40K, sometimes drive a bayside road that floods at high
>> tide - salt water) but I'm not giving the business to the "recommended"
>> guy...screw 'em. Thanks again.
>
>
> Okay, so the light came on again after a couiple of days so I replaced
> the gas cap and the station cleared the codes, I put on 150 miles to
> get the computer "ready" and the Jeep passed the emissions test. (The
> brakes passed the safety test as is).
>
> Three weeks later the "check engine" light is back. Assuming I get the
> same codes this time (0442 and 0455-small and large leaks) where is a
> logical place to find a probably intermittent evaporations system leak?
> With a specific target, I may try to find it now, otherwise, I'll just
> wait until I need the emissions test again next year.
>

Jo Bo

On at least a 96 and 99 xj's I've owned there's a little pump like thing on
the firewall to the right of the engine. If you put your hand on it with the
engine running you should hear/feel it do a thump thump type thing. It pulls
a vacuum on the fuel tank. So if there's a bad rubber line anywhere around
it that may be your problem. Harbor Freight has a code scanner that will
read and clear codes for $39.
http://www.harborfreight.com/cpi/cta...emnumber=46030

JoBo


"kokonutty" <islander2000@msn.com> wrote in message
news:1150849674.175247.166350@m73g2000cwd.googlegr oups.com...
>
> kokonutty wrote:
>> kokonutty wrote:
>> > 2001 XJ (58,000 miles) failed and has codes P0442 (small leak) and
>> > P0455 (large leak) in the evaporative emissions system. Other than the
>> > gas cap, does anyone have any ideas what to look for first? Thanks.
>>
>>
>> Thanks for all the replies and, as my first message stated, I was
>> looking for things to look for if I checked out the gas cap and needed
>> to go beyond there. I was trying to have Plan B, C, etc. in mind
>> before starting. Turns out even that was more than I needed. I
>> disconnected the battery to reset the codes and got none after making
>> sure the gas cap was tight. After a few days and a number of trips the
>> light is still out. That "problem" is over for now.
>>
>> This place had been recommended to me as a place that is liberal in
>> getting cars to pass, but they didn't even reset the codes and check
>> out the cap and kind of waffled when I asked about the cap so I'm not
>> going back there. I know my brakes are not that great but now I'm also
>> questioning whether I need the rotors replaced now as they said or I
>> can go a while first. I was reading the newspaper in the office when
>> they pulled the wheel and "determined" I needed replacements but they
>> didn't call me in to show me. So I need to get reinspected in the next
>> two days and if I need brakes, I'll take a look and get them (original
>> rotors, pads at 40K, sometimes drive a bayside road that floods at high
>> tide - salt water) but I'm not giving the business to the "recommended"
>> guy...screw 'em. Thanks again.
>
>
> Okay, so the light came on again after a couiple of days so I replaced
> the gas cap and the station cleared the codes, I put on 150 miles to
> get the computer "ready" and the Jeep passed the emissions test. (The
> brakes passed the safety test as is).
>
> Three weeks later the "check engine" light is back. Assuming I get the
> same codes this time (0442 and 0455-small and large leaks) where is a
> logical place to find a probably intermittent evaporations system leak?
> With a specific target, I may try to find it now, otherwise, I'll just
> wait until I need the emissions test again next year.
>

Jo Bo

On at least a 96 and 99 xj's I've owned there's a little pump like thing on
the firewall to the right of the engine. If you put your hand on it with the
engine running you should hear/feel it do a thump thump type thing. It pulls
a vacuum on the fuel tank. So if there's a bad rubber line anywhere around
it that may be your problem. Harbor Freight has a code scanner that will
read and clear codes for $39.
http://www.harborfreight.com/cpi/cta...emnumber=46030

JoBo


"kokonutty" <islander2000@msn.com> wrote in message
news:1150849674.175247.166350@m73g2000cwd.googlegr oups.com...
>
> kokonutty wrote:
>> kokonutty wrote:
>> > 2001 XJ (58,000 miles) failed and has codes P0442 (small leak) and
>> > P0455 (large leak) in the evaporative emissions system. Other than the
>> > gas cap, does anyone have any ideas what to look for first? Thanks.
>>
>>
>> Thanks for all the replies and, as my first message stated, I was
>> looking for things to look for if I checked out the gas cap and needed
>> to go beyond there. I was trying to have Plan B, C, etc. in mind
>> before starting. Turns out even that was more than I needed. I
>> disconnected the battery to reset the codes and got none after making
>> sure the gas cap was tight. After a few days and a number of trips the
>> light is still out. That "problem" is over for now.
>>
>> This place had been recommended to me as a place that is liberal in
>> getting cars to pass, but they didn't even reset the codes and check
>> out the cap and kind of waffled when I asked about the cap so I'm not
>> going back there. I know my brakes are not that great but now I'm also
>> questioning whether I need the rotors replaced now as they said or I
>> can go a while first. I was reading the newspaper in the office when
>> they pulled the wheel and "determined" I needed replacements but they
>> didn't call me in to show me. So I need to get reinspected in the next
>> two days and if I need brakes, I'll take a look and get them (original
>> rotors, pads at 40K, sometimes drive a bayside road that floods at high
>> tide - salt water) but I'm not giving the business to the "recommended"
>> guy...screw 'em. Thanks again.
>
>
> Okay, so the light came on again after a couiple of days so I replaced
> the gas cap and the station cleared the codes, I put on 150 miles to
> get the computer "ready" and the Jeep passed the emissions test. (The
> brakes passed the safety test as is).
>
> Three weeks later the "check engine" light is back. Assuming I get the
> same codes this time (0442 and 0455-small and large leaks) where is a
> logical place to find a probably intermittent evaporations system leak?
> With a specific target, I may try to find it now, otherwise, I'll just
> wait until I need the emissions test again next year.
>

Mike Romain

I think you are in need of a smoker. The lines get filled with smoke so
you can see the leaks.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

kokonutty wrote:
>
> kokonutty wrote:
> > kokonutty wrote:
> > > 2001 XJ (58,000 miles) failed and has codes P0442 (small leak) and
> > > P0455 (large leak) in the evaporative emissions system. Other than the
> > > gas cap, does anyone have any ideas what to look for first? Thanks.
> >
> >
> > Thanks for all the replies and, as my first message stated, I was
> > looking for things to look for if I checked out the gas cap and needed
> > to go beyond there. I was trying to have Plan B, C, etc. in mind
> > before starting. Turns out even that was more than I needed. I
> > disconnected the battery to reset the codes and got none after making
> > sure the gas cap was tight. After a few days and a number of trips the
> > light is still out. That "problem" is over for now.
> >
> > This place had been recommended to me as a place that is liberal in
> > getting cars to pass, but they didn't even reset the codes and check
> > out the cap and kind of waffled when I asked about the cap so I'm not
> > going back there. I know my brakes are not that great but now I'm also
> > questioning whether I need the rotors replaced now as they said or I
> > can go a while first. I was reading the newspaper in the office when
> > they pulled the wheel and "determined" I needed replacements but they
> > didn't call me in to show me. So I need to get reinspected in the next
> > two days and if I need brakes, I'll take a look and get them (original
> > rotors, pads at 40K, sometimes drive a bayside road that floods at high
> > tide - salt water) but I'm not giving the business to the "recommended"
> > guy...screw 'em. Thanks again.
>
> Okay, so the light came on again after a couiple of days so I replaced
> the gas cap and the station cleared the codes, I put on 150 miles to
> get the computer "ready" and the Jeep passed the emissions test. (The
> brakes passed the safety test as is).
>
> Three weeks later the "check engine" light is back. Assuming I get the
> same codes this time (0442 and 0455-small and large leaks) where is a
> logical place to find a probably intermittent evaporations system leak?
> With a specific target, I may try to find it now, otherwise, I'll just
> wait until I need the emissions test again next year.

Mike Romain

I think you are in need of a smoker. The lines get filled with smoke so
you can see the leaks.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

kokonutty wrote:
>
> kokonutty wrote:
> > kokonutty wrote:
> > > 2001 XJ (58,000 miles) failed and has codes P0442 (small leak) and
> > > P0455 (large leak) in the evaporative emissions system. Other than the
> > > gas cap, does anyone have any ideas what to look for first? Thanks.
> >
> >
> > Thanks for all the replies and, as my first message stated, I was
> > looking for things to look for if I checked out the gas cap and needed
> > to go beyond there. I was trying to have Plan B, C, etc. in mind
> > before starting. Turns out even that was more than I needed. I
> > disconnected the battery to reset the codes and got none after making
> > sure the gas cap was tight. After a few days and a number of trips the
> > light is still out. That "problem" is over for now.
> >
> > This place had been recommended to me as a place that is liberal in
> > getting cars to pass, but they didn't even reset the codes and check
> > out the cap and kind of waffled when I asked about the cap so I'm not
> > going back there. I know my brakes are not that great but now I'm also
> > questioning whether I need the rotors replaced now as they said or I
> > can go a while first. I was reading the newspaper in the office when
> > they pulled the wheel and "determined" I needed replacements but they
> > didn't call me in to show me. So I need to get reinspected in the next
> > two days and if I need brakes, I'll take a look and get them (original
> > rotors, pads at 40K, sometimes drive a bayside road that floods at high
> > tide - salt water) but I'm not giving the business to the "recommended"
> > guy...screw 'em. Thanks again.
>
> Okay, so the light came on again after a couiple of days so I replaced
> the gas cap and the station cleared the codes, I put on 150 miles to
> get the computer "ready" and the Jeep passed the emissions test. (The
> brakes passed the safety test as is).
>
> Three weeks later the "check engine" light is back. Assuming I get the
> same codes this time (0442 and 0455-small and large leaks) where is a
> logical place to find a probably intermittent evaporations system leak?
> With a specific target, I may try to find it now, otherwise, I'll just
> wait until I need the emissions test again next year.

Mike Romain

I think you are in need of a smoker. The lines get filled with smoke so
you can see the leaks.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

kokonutty wrote:
>
> kokonutty wrote:
> > kokonutty wrote:
> > > 2001 XJ (58,000 miles) failed and has codes P0442 (small leak) and
> > > P0455 (large leak) in the evaporative emissions system. Other than the
> > > gas cap, does anyone have any ideas what to look for first? Thanks.
> >
> >
> > Thanks for all the replies and, as my first message stated, I was
> > looking for things to look for if I checked out the gas cap and needed
> > to go beyond there. I was trying to have Plan B, C, etc. in mind
> > before starting. Turns out even that was more than I needed. I
> > disconnected the battery to reset the codes and got none after making
> > sure the gas cap was tight. After a few days and a number of trips the
> > light is still out. That "problem" is over for now.
> >
> > This place had been recommended to me as a place that is liberal in
> > getting cars to pass, but they didn't even reset the codes and check
> > out the cap and kind of waffled when I asked about the cap so I'm not
> > going back there. I know my brakes are not that great but now I'm also
> > questioning whether I need the rotors replaced now as they said or I
> > can go a while first. I was reading the newspaper in the office when
> > they pulled the wheel and "determined" I needed replacements but they
> > didn't call me in to show me. So I need to get reinspected in the next
> > two days and if I need brakes, I'll take a look and get them (original
> > rotors, pads at 40K, sometimes drive a bayside road that floods at high
> > tide - salt water) but I'm not giving the business to the "recommended"
> > guy...screw 'em. Thanks again.
>
> Okay, so the light came on again after a couiple of days so I replaced
> the gas cap and the station cleared the codes, I put on 150 miles to
> get the computer "ready" and the Jeep passed the emissions test. (The
> brakes passed the safety test as is).
>
> Three weeks later the "check engine" light is back. Assuming I get the
> same codes this time (0442 and 0455-small and large leaks) where is a
> logical place to find a probably intermittent evaporations system leak?
> With a specific target, I may try to find it now, otherwise, I'll just
> wait until I need the emissions test again next year.