Dreaded P0442, P0455 on '02 TJ Sport
Guest
Posts: n/a
as many i replace in a week i'm shocked they had to order it we have a
least one for each model
JELo wrote:
> Okay, so warranty expired a few months back
> and now I start getting the dreaded P0442 and
> P0455 MIL errors (small and large leaks in the
> evap emissions system). I have reset the
> computer several times and they keep coming
> back - no other errors though.
>
> So I want to start by replacing the gas cap as
> some have suggested elsewhere. Local dealership
> (the only one for 150 miles in any direction) wants
> $20 and they would have to order it! Is there
> anywhere online I can get a factory gas cap for
> a reasonable price?
>
> What other things should I be checking related
> to these codes?
>
> Any ideas greatly appreciated . . . JELo
least one for each model
JELo wrote:
> Okay, so warranty expired a few months back
> and now I start getting the dreaded P0442 and
> P0455 MIL errors (small and large leaks in the
> evap emissions system). I have reset the
> computer several times and they keep coming
> back - no other errors though.
>
> So I want to start by replacing the gas cap as
> some have suggested elsewhere. Local dealership
> (the only one for 150 miles in any direction) wants
> $20 and they would have to order it! Is there
> anywhere online I can get a factory gas cap for
> a reasonable price?
>
> What other things should I be checking related
> to these codes?
>
> Any ideas greatly appreciated . . . JELo
Guest
Posts: n/a
as many i replace in a week i'm shocked they had to order it we have a
least one for each model
JELo wrote:
> Okay, so warranty expired a few months back
> and now I start getting the dreaded P0442 and
> P0455 MIL errors (small and large leaks in the
> evap emissions system). I have reset the
> computer several times and they keep coming
> back - no other errors though.
>
> So I want to start by replacing the gas cap as
> some have suggested elsewhere. Local dealership
> (the only one for 150 miles in any direction) wants
> $20 and they would have to order it! Is there
> anywhere online I can get a factory gas cap for
> a reasonable price?
>
> What other things should I be checking related
> to these codes?
>
> Any ideas greatly appreciated . . . JELo
least one for each model
JELo wrote:
> Okay, so warranty expired a few months back
> and now I start getting the dreaded P0442 and
> P0455 MIL errors (small and large leaks in the
> evap emissions system). I have reset the
> computer several times and they keep coming
> back - no other errors though.
>
> So I want to start by replacing the gas cap as
> some have suggested elsewhere. Local dealership
> (the only one for 150 miles in any direction) wants
> $20 and they would have to order it! Is there
> anywhere online I can get a factory gas cap for
> a reasonable price?
>
> What other things should I be checking related
> to these codes?
>
> Any ideas greatly appreciated . . . JELo
Guest
Posts: n/a
as many i replace in a week i'm shocked they had to order it we have a
least one for each model
JELo wrote:
> Okay, so warranty expired a few months back
> and now I start getting the dreaded P0442 and
> P0455 MIL errors (small and large leaks in the
> evap emissions system). I have reset the
> computer several times and they keep coming
> back - no other errors though.
>
> So I want to start by replacing the gas cap as
> some have suggested elsewhere. Local dealership
> (the only one for 150 miles in any direction) wants
> $20 and they would have to order it! Is there
> anywhere online I can get a factory gas cap for
> a reasonable price?
>
> What other things should I be checking related
> to these codes?
>
> Any ideas greatly appreciated . . . JELo
least one for each model
JELo wrote:
> Okay, so warranty expired a few months back
> and now I start getting the dreaded P0442 and
> P0455 MIL errors (small and large leaks in the
> evap emissions system). I have reset the
> computer several times and they keep coming
> back - no other errors though.
>
> So I want to start by replacing the gas cap as
> some have suggested elsewhere. Local dealership
> (the only one for 150 miles in any direction) wants
> $20 and they would have to order it! Is there
> anywhere online I can get a factory gas cap for
> a reasonable price?
>
> What other things should I be checking related
> to these codes?
>
> Any ideas greatly appreciated . . . JELo
Guest
Posts: n/a
ccv is different than the evaperative system and they do no connect to each other
check around the vapor cannister for cracked hoses
Mike Romain wrote:
> That is the plastic CCV line Jeff, I gave him the parts list.
>
> Mike
>
> Jeff Strickland wrote:
> >
> > That is a rubber hose.
> >
> > "Troy" <troy@ .> wrote in message
> > news:sa2dnTmz4aX5yg7fRVn-hA@comcast.com...
> > > I had this problem, I found that a plastic connector leading up to my
> > intake
> > > manifold from the valve cover was cracked and pulling air... covered it
> > with
> > > some duct tape (i know, redneck) and stopped the leak/error codes from
> > > popping up. Now if I can only find out what to call it so I can get a new
> > > one from the dealership...
> > >
> > > Troy
> > >
> > >
check around the vapor cannister for cracked hoses
Mike Romain wrote:
> That is the plastic CCV line Jeff, I gave him the parts list.
>
> Mike
>
> Jeff Strickland wrote:
> >
> > That is a rubber hose.
> >
> > "Troy" <troy@ .> wrote in message
> > news:sa2dnTmz4aX5yg7fRVn-hA@comcast.com...
> > > I had this problem, I found that a plastic connector leading up to my
> > intake
> > > manifold from the valve cover was cracked and pulling air... covered it
> > with
> > > some duct tape (i know, redneck) and stopped the leak/error codes from
> > > popping up. Now if I can only find out what to call it so I can get a new
> > > one from the dealership...
> > >
> > > Troy
> > >
> > >
Guest
Posts: n/a
ccv is different than the evaperative system and they do no connect to each other
check around the vapor cannister for cracked hoses
Mike Romain wrote:
> That is the plastic CCV line Jeff, I gave him the parts list.
>
> Mike
>
> Jeff Strickland wrote:
> >
> > That is a rubber hose.
> >
> > "Troy" <troy@ .> wrote in message
> > news:sa2dnTmz4aX5yg7fRVn-hA@comcast.com...
> > > I had this problem, I found that a plastic connector leading up to my
> > intake
> > > manifold from the valve cover was cracked and pulling air... covered it
> > with
> > > some duct tape (i know, redneck) and stopped the leak/error codes from
> > > popping up. Now if I can only find out what to call it so I can get a new
> > > one from the dealership...
> > >
> > > Troy
> > >
> > >
check around the vapor cannister for cracked hoses
Mike Romain wrote:
> That is the plastic CCV line Jeff, I gave him the parts list.
>
> Mike
>
> Jeff Strickland wrote:
> >
> > That is a rubber hose.
> >
> > "Troy" <troy@ .> wrote in message
> > news:sa2dnTmz4aX5yg7fRVn-hA@comcast.com...
> > > I had this problem, I found that a plastic connector leading up to my
> > intake
> > > manifold from the valve cover was cracked and pulling air... covered it
> > with
> > > some duct tape (i know, redneck) and stopped the leak/error codes from
> > > popping up. Now if I can only find out what to call it so I can get a new
> > > one from the dealership...
> > >
> > > Troy
> > >
> > >
Guest
Posts: n/a
ccv is different than the evaperative system and they do no connect to each other
check around the vapor cannister for cracked hoses
Mike Romain wrote:
> That is the plastic CCV line Jeff, I gave him the parts list.
>
> Mike
>
> Jeff Strickland wrote:
> >
> > That is a rubber hose.
> >
> > "Troy" <troy@ .> wrote in message
> > news:sa2dnTmz4aX5yg7fRVn-hA@comcast.com...
> > > I had this problem, I found that a plastic connector leading up to my
> > intake
> > > manifold from the valve cover was cracked and pulling air... covered it
> > with
> > > some duct tape (i know, redneck) and stopped the leak/error codes from
> > > popping up. Now if I can only find out what to call it so I can get a new
> > > one from the dealership...
> > >
> > > Troy
> > >
> > >
check around the vapor cannister for cracked hoses
Mike Romain wrote:
> That is the plastic CCV line Jeff, I gave him the parts list.
>
> Mike
>
> Jeff Strickland wrote:
> >
> > That is a rubber hose.
> >
> > "Troy" <troy@ .> wrote in message
> > news:sa2dnTmz4aX5yg7fRVn-hA@comcast.com...
> > > I had this problem, I found that a plastic connector leading up to my
> > intake
> > > manifold from the valve cover was cracked and pulling air... covered it
> > with
> > > some duct tape (i know, redneck) and stopped the leak/error codes from
> > > popping up. Now if I can only find out what to call it so I can get a new
> > > one from the dealership...
> > >
> > > Troy
> > >
> > >
Guest
Posts: n/a
ccv is different than the evaperative system and they do no connect to each other
check around the vapor cannister for cracked hoses
Mike Romain wrote:
> That is the plastic CCV line Jeff, I gave him the parts list.
>
> Mike
>
> Jeff Strickland wrote:
> >
> > That is a rubber hose.
> >
> > "Troy" <troy@ .> wrote in message
> > news:sa2dnTmz4aX5yg7fRVn-hA@comcast.com...
> > > I had this problem, I found that a plastic connector leading up to my
> > intake
> > > manifold from the valve cover was cracked and pulling air... covered it
> > with
> > > some duct tape (i know, redneck) and stopped the leak/error codes from
> > > popping up. Now if I can only find out what to call it so I can get a new
> > > one from the dealership...
> > >
> > > Troy
> > >
> > >
check around the vapor cannister for cracked hoses
Mike Romain wrote:
> That is the plastic CCV line Jeff, I gave him the parts list.
>
> Mike
>
> Jeff Strickland wrote:
> >
> > That is a rubber hose.
> >
> > "Troy" <troy@ .> wrote in message
> > news:sa2dnTmz4aX5yg7fRVn-hA@comcast.com...
> > > I had this problem, I found that a plastic connector leading up to my
> > intake
> > > manifold from the valve cover was cracked and pulling air... covered it
> > with
> > > some duct tape (i know, redneck) and stopped the leak/error codes from
> > > popping up. Now if I can only find out what to call it so I can get a new
> > > one from the dealership...
> > >
> > > Troy
> > >
> > >
Guest
Posts: n/a
look for rust in the gas cap center hole on the white part and if there is any
it's bad
JELo wrote:
> > You have a leak in the gas cap, or the gas cap is missing.
> >
> > 0442 = Evaporative Emission Control System Leak Detected (small leak)
> > 0455 = Evaporative Emission Control System Leak Detected (gross leak)
> >
> >
> > I would not even consider the cause for the 442, and focus my attention on
> > the 455. After all, a small leak is only a small leak until it is a big
> > leak, but a big leak is a small leak in the beginning. My guess is that your
> > cap is not being put on well, or it has a diaphram of sorts inside that is
> > failing or has failed. either way, you need a gas cap. If you have a locking
> > gas cap, take it off and leave it at home for a couple of weeks while you
> > use the factory gas cap, or any other gas cap for that matter. Clear the
> > code and replace the cap, and see if the code comes back. I don't think it
> > will, and then you can spend the Family Fortune, or your kid's college fund,
> > and buy a new locking gas cap.
> I am the only one who drives this thing so
> I can't blame it on the wife this time . . .
> but I did notice that the cap 'ratchets' way
> too easily. So I suspect it is not sealing
> properly. Never wore out a gas cap before!?
>
> So I pulled the line that comes from the gas
> tank and attaches to the charcoal canister
> in the engine compartment and connected a
> little tire pump to it. With the pump running,
> sometimes the line and tank would hold
> pressure when I screwed the gas cap on
> and sometimes it wouldn't. So that may
> be the culprit. Hmmmmmm
>
> Thanks for the ideas, I'll check the other
> hoses too. JELo '02 TJ Sport
>
> > > Okay, so warranty expired a few months back
> > > and now I start getting the dreaded P0442 and
> > > P0455 MIL errors (small and large leaks in the
> > > evap emissions system). I have reset the
> > > computer several times and they keep coming
> > > back - no other errors though.
> > >
> > > So I want to start by replacing the gas cap as
> > > some have suggested elsewhere. Local dealership
> > > (the only one for 150 miles in any direction) wants
> > > $20 and they would have to order it! Is there
> > > anywhere online I can get a factory gas cap for
> > > a reasonable price?
> > >
> > > What other things should I be checking related
> > > to these codes?
> > >
> > > Any ideas greatly appreciated . . . JELo
it's bad
JELo wrote:
> > You have a leak in the gas cap, or the gas cap is missing.
> >
> > 0442 = Evaporative Emission Control System Leak Detected (small leak)
> > 0455 = Evaporative Emission Control System Leak Detected (gross leak)
> >
> >
> > I would not even consider the cause for the 442, and focus my attention on
> > the 455. After all, a small leak is only a small leak until it is a big
> > leak, but a big leak is a small leak in the beginning. My guess is that your
> > cap is not being put on well, or it has a diaphram of sorts inside that is
> > failing or has failed. either way, you need a gas cap. If you have a locking
> > gas cap, take it off and leave it at home for a couple of weeks while you
> > use the factory gas cap, or any other gas cap for that matter. Clear the
> > code and replace the cap, and see if the code comes back. I don't think it
> > will, and then you can spend the Family Fortune, or your kid's college fund,
> > and buy a new locking gas cap.
> I am the only one who drives this thing so
> I can't blame it on the wife this time . . .
> but I did notice that the cap 'ratchets' way
> too easily. So I suspect it is not sealing
> properly. Never wore out a gas cap before!?
>
> So I pulled the line that comes from the gas
> tank and attaches to the charcoal canister
> in the engine compartment and connected a
> little tire pump to it. With the pump running,
> sometimes the line and tank would hold
> pressure when I screwed the gas cap on
> and sometimes it wouldn't. So that may
> be the culprit. Hmmmmmm
>
> Thanks for the ideas, I'll check the other
> hoses too. JELo '02 TJ Sport
>
> > > Okay, so warranty expired a few months back
> > > and now I start getting the dreaded P0442 and
> > > P0455 MIL errors (small and large leaks in the
> > > evap emissions system). I have reset the
> > > computer several times and they keep coming
> > > back - no other errors though.
> > >
> > > So I want to start by replacing the gas cap as
> > > some have suggested elsewhere. Local dealership
> > > (the only one for 150 miles in any direction) wants
> > > $20 and they would have to order it! Is there
> > > anywhere online I can get a factory gas cap for
> > > a reasonable price?
> > >
> > > What other things should I be checking related
> > > to these codes?
> > >
> > > Any ideas greatly appreciated . . . JELo
Guest
Posts: n/a
look for rust in the gas cap center hole on the white part and if there is any
it's bad
JELo wrote:
> > You have a leak in the gas cap, or the gas cap is missing.
> >
> > 0442 = Evaporative Emission Control System Leak Detected (small leak)
> > 0455 = Evaporative Emission Control System Leak Detected (gross leak)
> >
> >
> > I would not even consider the cause for the 442, and focus my attention on
> > the 455. After all, a small leak is only a small leak until it is a big
> > leak, but a big leak is a small leak in the beginning. My guess is that your
> > cap is not being put on well, or it has a diaphram of sorts inside that is
> > failing or has failed. either way, you need a gas cap. If you have a locking
> > gas cap, take it off and leave it at home for a couple of weeks while you
> > use the factory gas cap, or any other gas cap for that matter. Clear the
> > code and replace the cap, and see if the code comes back. I don't think it
> > will, and then you can spend the Family Fortune, or your kid's college fund,
> > and buy a new locking gas cap.
> I am the only one who drives this thing so
> I can't blame it on the wife this time . . .
> but I did notice that the cap 'ratchets' way
> too easily. So I suspect it is not sealing
> properly. Never wore out a gas cap before!?
>
> So I pulled the line that comes from the gas
> tank and attaches to the charcoal canister
> in the engine compartment and connected a
> little tire pump to it. With the pump running,
> sometimes the line and tank would hold
> pressure when I screwed the gas cap on
> and sometimes it wouldn't. So that may
> be the culprit. Hmmmmmm
>
> Thanks for the ideas, I'll check the other
> hoses too. JELo '02 TJ Sport
>
> > > Okay, so warranty expired a few months back
> > > and now I start getting the dreaded P0442 and
> > > P0455 MIL errors (small and large leaks in the
> > > evap emissions system). I have reset the
> > > computer several times and they keep coming
> > > back - no other errors though.
> > >
> > > So I want to start by replacing the gas cap as
> > > some have suggested elsewhere. Local dealership
> > > (the only one for 150 miles in any direction) wants
> > > $20 and they would have to order it! Is there
> > > anywhere online I can get a factory gas cap for
> > > a reasonable price?
> > >
> > > What other things should I be checking related
> > > to these codes?
> > >
> > > Any ideas greatly appreciated . . . JELo
it's bad
JELo wrote:
> > You have a leak in the gas cap, or the gas cap is missing.
> >
> > 0442 = Evaporative Emission Control System Leak Detected (small leak)
> > 0455 = Evaporative Emission Control System Leak Detected (gross leak)
> >
> >
> > I would not even consider the cause for the 442, and focus my attention on
> > the 455. After all, a small leak is only a small leak until it is a big
> > leak, but a big leak is a small leak in the beginning. My guess is that your
> > cap is not being put on well, or it has a diaphram of sorts inside that is
> > failing or has failed. either way, you need a gas cap. If you have a locking
> > gas cap, take it off and leave it at home for a couple of weeks while you
> > use the factory gas cap, or any other gas cap for that matter. Clear the
> > code and replace the cap, and see if the code comes back. I don't think it
> > will, and then you can spend the Family Fortune, or your kid's college fund,
> > and buy a new locking gas cap.
> I am the only one who drives this thing so
> I can't blame it on the wife this time . . .
> but I did notice that the cap 'ratchets' way
> too easily. So I suspect it is not sealing
> properly. Never wore out a gas cap before!?
>
> So I pulled the line that comes from the gas
> tank and attaches to the charcoal canister
> in the engine compartment and connected a
> little tire pump to it. With the pump running,
> sometimes the line and tank would hold
> pressure when I screwed the gas cap on
> and sometimes it wouldn't. So that may
> be the culprit. Hmmmmmm
>
> Thanks for the ideas, I'll check the other
> hoses too. JELo '02 TJ Sport
>
> > > Okay, so warranty expired a few months back
> > > and now I start getting the dreaded P0442 and
> > > P0455 MIL errors (small and large leaks in the
> > > evap emissions system). I have reset the
> > > computer several times and they keep coming
> > > back - no other errors though.
> > >
> > > So I want to start by replacing the gas cap as
> > > some have suggested elsewhere. Local dealership
> > > (the only one for 150 miles in any direction) wants
> > > $20 and they would have to order it! Is there
> > > anywhere online I can get a factory gas cap for
> > > a reasonable price?
> > >
> > > What other things should I be checking related
> > > to these codes?
> > >
> > > Any ideas greatly appreciated . . . JELo
Guest
Posts: n/a
look for rust in the gas cap center hole on the white part and if there is any
it's bad
JELo wrote:
> > You have a leak in the gas cap, or the gas cap is missing.
> >
> > 0442 = Evaporative Emission Control System Leak Detected (small leak)
> > 0455 = Evaporative Emission Control System Leak Detected (gross leak)
> >
> >
> > I would not even consider the cause for the 442, and focus my attention on
> > the 455. After all, a small leak is only a small leak until it is a big
> > leak, but a big leak is a small leak in the beginning. My guess is that your
> > cap is not being put on well, or it has a diaphram of sorts inside that is
> > failing or has failed. either way, you need a gas cap. If you have a locking
> > gas cap, take it off and leave it at home for a couple of weeks while you
> > use the factory gas cap, or any other gas cap for that matter. Clear the
> > code and replace the cap, and see if the code comes back. I don't think it
> > will, and then you can spend the Family Fortune, or your kid's college fund,
> > and buy a new locking gas cap.
> I am the only one who drives this thing so
> I can't blame it on the wife this time . . .
> but I did notice that the cap 'ratchets' way
> too easily. So I suspect it is not sealing
> properly. Never wore out a gas cap before!?
>
> So I pulled the line that comes from the gas
> tank and attaches to the charcoal canister
> in the engine compartment and connected a
> little tire pump to it. With the pump running,
> sometimes the line and tank would hold
> pressure when I screwed the gas cap on
> and sometimes it wouldn't. So that may
> be the culprit. Hmmmmmm
>
> Thanks for the ideas, I'll check the other
> hoses too. JELo '02 TJ Sport
>
> > > Okay, so warranty expired a few months back
> > > and now I start getting the dreaded P0442 and
> > > P0455 MIL errors (small and large leaks in the
> > > evap emissions system). I have reset the
> > > computer several times and they keep coming
> > > back - no other errors though.
> > >
> > > So I want to start by replacing the gas cap as
> > > some have suggested elsewhere. Local dealership
> > > (the only one for 150 miles in any direction) wants
> > > $20 and they would have to order it! Is there
> > > anywhere online I can get a factory gas cap for
> > > a reasonable price?
> > >
> > > What other things should I be checking related
> > > to these codes?
> > >
> > > Any ideas greatly appreciated . . . JELo
it's bad
JELo wrote:
> > You have a leak in the gas cap, or the gas cap is missing.
> >
> > 0442 = Evaporative Emission Control System Leak Detected (small leak)
> > 0455 = Evaporative Emission Control System Leak Detected (gross leak)
> >
> >
> > I would not even consider the cause for the 442, and focus my attention on
> > the 455. After all, a small leak is only a small leak until it is a big
> > leak, but a big leak is a small leak in the beginning. My guess is that your
> > cap is not being put on well, or it has a diaphram of sorts inside that is
> > failing or has failed. either way, you need a gas cap. If you have a locking
> > gas cap, take it off and leave it at home for a couple of weeks while you
> > use the factory gas cap, or any other gas cap for that matter. Clear the
> > code and replace the cap, and see if the code comes back. I don't think it
> > will, and then you can spend the Family Fortune, or your kid's college fund,
> > and buy a new locking gas cap.
> I am the only one who drives this thing so
> I can't blame it on the wife this time . . .
> but I did notice that the cap 'ratchets' way
> too easily. So I suspect it is not sealing
> properly. Never wore out a gas cap before!?
>
> So I pulled the line that comes from the gas
> tank and attaches to the charcoal canister
> in the engine compartment and connected a
> little tire pump to it. With the pump running,
> sometimes the line and tank would hold
> pressure when I screwed the gas cap on
> and sometimes it wouldn't. So that may
> be the culprit. Hmmmmmm
>
> Thanks for the ideas, I'll check the other
> hoses too. JELo '02 TJ Sport
>
> > > Okay, so warranty expired a few months back
> > > and now I start getting the dreaded P0442 and
> > > P0455 MIL errors (small and large leaks in the
> > > evap emissions system). I have reset the
> > > computer several times and they keep coming
> > > back - no other errors though.
> > >
> > > So I want to start by replacing the gas cap as
> > > some have suggested elsewhere. Local dealership
> > > (the only one for 150 miles in any direction) wants
> > > $20 and they would have to order it! Is there
> > > anywhere online I can get a factory gas cap for
> > > a reasonable price?
> > >
> > > What other things should I be checking related
> > > to these codes?
> > >
> > > Any ideas greatly appreciated . . . JELo


