Steve Foley

Memories are returning........

The O2 sensor was replaced. This didn't help.

There is a circuit board next to the battery that he told me was dead. He
also said no replacements were available. This board has 5 diodes and 2
resistors in it. I replaced the resistors, but could not decode the original
values, so guessed at the ohms.

Some history.

Many years ago, I had the engine replaced. The meatball I paid to finish ran
some ires too close to the exhaust manifold. While driving down the highway,
something shorted out and 22 wires became one. Among other things, this
caused the starter to engage. This is not a good thing to do to the starter
or flywheel when you're going 70.

I had the wires replaced, and everything seemed fine. Looks like there may
still be some nagging problems.



"Mike Romain" <romainm@sympatico.ca> wrote in message
news:412FBF59.D29FF10D@sympatico.ca...
> Very likely a dead O2 sensor.
>
> Those engines and the Carter BBD run really clean when tuned as far as
> emissions goes.
>
> Mike
>
> Steve Foley wrote:
> >
> > Charcoal canister is only a part of the problem.
> >
> > I disconnected the charcoal canister, and the problem improved slightly.
I
> > adjusted the mixture, and the Jeep runs smoother than it ever did.
> >
> > Apparently, my computer is dead, or at least not functioning.
> >
> > I had a Jeep dealer working in it two years ago, and he told me the
stepper
> > motor was good, just not moving.
> >
> > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
Dale
> > Becketts primer at off-road.com. At least now I know what I'm looking
at.
> > Checked the water coolant sensor and the sensor in the air cleaner, and
both
> > appear to be working. Opening/closing the connections make no
difference.
> >
> > It passed emissions two years running just like it is now (no computer,
but
> > idles smoothly) so I guess I'll have another try.
> >
> > I'll post the results.
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:412D0C84.6A4F2A19@sympatico.ca...
> > > The surging suggests a dead charcoal canister.
> > >
> > > To test it, trace the PCV line to the rear of the carb. There you
will
> > > find a solenoid ot better a T fitting with a line going to the top of
> > > the charcoal canister way down under the brake master.
> > >
> > > At idle pinch this PCV line to the canister closed. If the idle
mellows
> > > out like I bet it will, the canister purge valve is shot. There is no
> > > fix, you need a new canister.
> > >
> > > This also should have some oil spitting into the air filter likely...
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > Steve Foley wrote:
> > > >
> > > > Looking for some basic info on my Carter BBD.
> > > >
> > > > If I disconnect the plug in the back, is this essentially
disconnecting
> > the
> > > > computer? Should I be able to get it to idle smoothly like that?
> > > >
> > > > It won't idle. I tried cleaning the idle tubes, but it still almost
> > dies,
> > > > then surges to 1500RPM, then repeats the process.
> > > >
> > > > What should I be seeing when I look down the throat when idling? It
is
> > > > presently dripping. This sounds like the symptom of clogged idle
tubes,
> > but
> > > > I can't seem to get them any more unclogged. I poked wire into the
> > bottom,
> > > > until it got to the top. There is a 90 degree bend in the path, so I
> > can't
> > > > get the wire out the other end. I can easily blow through the tubes.
> > > >
> > > > Any thoughts?

Mike Romain

On those kind of cases, I recommend you go back to the basics and just
keep her manually tuned up nice.

To try and sort out someone else's 'new' wiring after a burn is almost
impossible if something doesn't work.

Mike


Steve Foley wrote:
>
> Memories are returning........
>
> The O2 sensor was replaced. This didn't help.
>
> There is a circuit board next to the battery that he told me was dead. He
> also said no replacements were available. This board has 5 diodes and 2
> resistors in it. I replaced the resistors, but could not decode the original
> values, so guessed at the ohms.
>
> Some history.
>
> Many years ago, I had the engine replaced. The meatball I paid to finish ran
> some ires too close to the exhaust manifold. While driving down the highway,
> something shorted out and 22 wires became one. Among other things, this
> caused the starter to engage. This is not a good thing to do to the starter
> or flywheel when you're going 70.
>
> I had the wires replaced, and everything seemed fine. Looks like there may
> still be some nagging problems.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:412FBF59.D29FF10D@sympatico.ca...
> > Very likely a dead O2 sensor.
> >
> > Those engines and the Carter BBD run really clean when tuned as far as
> > emissions goes.
> >
> > Mike
> >
> > Steve Foley wrote:
> > >
> > > Charcoal canister is only a part of the problem.
> > >
> > > I disconnected the charcoal canister, and the problem improved slightly.
> I
> > > adjusted the mixture, and the Jeep runs smoother than it ever did.
> > >
> > > Apparently, my computer is dead, or at least not functioning.
> > >
> > > I had a Jeep dealer working in it two years ago, and he told me the
> stepper
> > > motor was good, just not moving.
> > >
> > > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
> Dale
> > > Becketts primer at off-road.com. At least now I know what I'm looking
> at.
> > > Checked the water coolant sensor and the sensor in the air cleaner, and
> both
> > > appear to be working. Opening/closing the connections make no
> difference.
> > >
> > > It passed emissions two years running just like it is now (no computer,
> but
> > > idles smoothly) so I guess I'll have another try.
> > >
> > > I'll post the results.
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:412D0C84.6A4F2A19@sympatico.ca...
> > > > The surging suggests a dead charcoal canister.
> > > >
> > > > To test it, trace the PCV line to the rear of the carb. There you
> will
> > > > find a solenoid ot better a T fitting with a line going to the top of
> > > > the charcoal canister way down under the brake master.
> > > >
> > > > At idle pinch this PCV line to the canister closed. If the idle
> mellows
> > > > out like I bet it will, the canister purge valve is shot. There is no
> > > > fix, you need a new canister.
> > > >
> > > > This also should have some oil spitting into the air filter likely...
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > Steve Foley wrote:
> > > > >
> > > > > Looking for some basic info on my Carter BBD.
> > > > >
> > > > > If I disconnect the plug in the back, is this essentially
> disconnecting
> > > the
> > > > > computer? Should I be able to get it to idle smoothly like that?
> > > > >
> > > > > It won't idle. I tried cleaning the idle tubes, but it still almost
> > > dies,
> > > > > then surges to 1500RPM, then repeats the process.
> > > > >
> > > > > What should I be seeing when I look down the throat when idling? It
> is
> > > > > presently dripping. This sounds like the symptom of clogged idle
> tubes,
> > > but
> > > > > I can't seem to get them any more unclogged. I poked wire into the
> > > bottom,
> > > > > until it got to the top. There is a 90 degree bend in the path, so I
> > > can't
> > > > > get the wire out the other end. I can easily blow through the tubes.
> > > > >
> > > > > Any thoughts?

Mike Romain

On those kind of cases, I recommend you go back to the basics and just
keep her manually tuned up nice.

To try and sort out someone else's 'new' wiring after a burn is almost
impossible if something doesn't work.

Mike


Steve Foley wrote:
>
> Memories are returning........
>
> The O2 sensor was replaced. This didn't help.
>
> There is a circuit board next to the battery that he told me was dead. He
> also said no replacements were available. This board has 5 diodes and 2
> resistors in it. I replaced the resistors, but could not decode the original
> values, so guessed at the ohms.
>
> Some history.
>
> Many years ago, I had the engine replaced. The meatball I paid to finish ran
> some ires too close to the exhaust manifold. While driving down the highway,
> something shorted out and 22 wires became one. Among other things, this
> caused the starter to engage. This is not a good thing to do to the starter
> or flywheel when you're going 70.
>
> I had the wires replaced, and everything seemed fine. Looks like there may
> still be some nagging problems.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:412FBF59.D29FF10D@sympatico.ca...
> > Very likely a dead O2 sensor.
> >
> > Those engines and the Carter BBD run really clean when tuned as far as
> > emissions goes.
> >
> > Mike
> >
> > Steve Foley wrote:
> > >
> > > Charcoal canister is only a part of the problem.
> > >
> > > I disconnected the charcoal canister, and the problem improved slightly.
> I
> > > adjusted the mixture, and the Jeep runs smoother than it ever did.
> > >
> > > Apparently, my computer is dead, or at least not functioning.
> > >
> > > I had a Jeep dealer working in it two years ago, and he told me the
> stepper
> > > motor was good, just not moving.
> > >
> > > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
> Dale
> > > Becketts primer at off-road.com. At least now I know what I'm looking
> at.
> > > Checked the water coolant sensor and the sensor in the air cleaner, and
> both
> > > appear to be working. Opening/closing the connections make no
> difference.
> > >
> > > It passed emissions two years running just like it is now (no computer,
> but
> > > idles smoothly) so I guess I'll have another try.
> > >
> > > I'll post the results.
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:412D0C84.6A4F2A19@sympatico.ca...
> > > > The surging suggests a dead charcoal canister.
> > > >
> > > > To test it, trace the PCV line to the rear of the carb. There you
> will
> > > > find a solenoid ot better a T fitting with a line going to the top of
> > > > the charcoal canister way down under the brake master.
> > > >
> > > > At idle pinch this PCV line to the canister closed. If the idle
> mellows
> > > > out like I bet it will, the canister purge valve is shot. There is no
> > > > fix, you need a new canister.
> > > >
> > > > This also should have some oil spitting into the air filter likely...
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > Steve Foley wrote:
> > > > >
> > > > > Looking for some basic info on my Carter BBD.
> > > > >
> > > > > If I disconnect the plug in the back, is this essentially
> disconnecting
> > > the
> > > > > computer? Should I be able to get it to idle smoothly like that?
> > > > >
> > > > > It won't idle. I tried cleaning the idle tubes, but it still almost
> > > dies,
> > > > > then surges to 1500RPM, then repeats the process.
> > > > >
> > > > > What should I be seeing when I look down the throat when idling? It
> is
> > > > > presently dripping. This sounds like the symptom of clogged idle
> tubes,
> > > but
> > > > > I can't seem to get them any more unclogged. I poked wire into the
> > > bottom,
> > > > > until it got to the top. There is a 90 degree bend in the path, so I
> > > can't
> > > > > get the wire out the other end. I can easily blow through the tubes.
> > > > >
> > > > > Any thoughts?

Mike Romain

On those kind of cases, I recommend you go back to the basics and just
keep her manually tuned up nice.

To try and sort out someone else's 'new' wiring after a burn is almost
impossible if something doesn't work.

Mike


Steve Foley wrote:
>
> Memories are returning........
>
> The O2 sensor was replaced. This didn't help.
>
> There is a circuit board next to the battery that he told me was dead. He
> also said no replacements were available. This board has 5 diodes and 2
> resistors in it. I replaced the resistors, but could not decode the original
> values, so guessed at the ohms.
>
> Some history.
>
> Many years ago, I had the engine replaced. The meatball I paid to finish ran
> some ires too close to the exhaust manifold. While driving down the highway,
> something shorted out and 22 wires became one. Among other things, this
> caused the starter to engage. This is not a good thing to do to the starter
> or flywheel when you're going 70.
>
> I had the wires replaced, and everything seemed fine. Looks like there may
> still be some nagging problems.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:412FBF59.D29FF10D@sympatico.ca...
> > Very likely a dead O2 sensor.
> >
> > Those engines and the Carter BBD run really clean when tuned as far as
> > emissions goes.
> >
> > Mike
> >
> > Steve Foley wrote:
> > >
> > > Charcoal canister is only a part of the problem.
> > >
> > > I disconnected the charcoal canister, and the problem improved slightly.
> I
> > > adjusted the mixture, and the Jeep runs smoother than it ever did.
> > >
> > > Apparently, my computer is dead, or at least not functioning.
> > >
> > > I had a Jeep dealer working in it two years ago, and he told me the
> stepper
> > > motor was good, just not moving.
> > >
> > > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
> Dale
> > > Becketts primer at off-road.com. At least now I know what I'm looking
> at.
> > > Checked the water coolant sensor and the sensor in the air cleaner, and
> both
> > > appear to be working. Opening/closing the connections make no
> difference.
> > >
> > > It passed emissions two years running just like it is now (no computer,
> but
> > > idles smoothly) so I guess I'll have another try.
> > >
> > > I'll post the results.
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:412D0C84.6A4F2A19@sympatico.ca...
> > > > The surging suggests a dead charcoal canister.
> > > >
> > > > To test it, trace the PCV line to the rear of the carb. There you
> will
> > > > find a solenoid ot better a T fitting with a line going to the top of
> > > > the charcoal canister way down under the brake master.
> > > >
> > > > At idle pinch this PCV line to the canister closed. If the idle
> mellows
> > > > out like I bet it will, the canister purge valve is shot. There is no
> > > > fix, you need a new canister.
> > > >
> > > > This also should have some oil spitting into the air filter likely...
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > Steve Foley wrote:
> > > > >
> > > > > Looking for some basic info on my Carter BBD.
> > > > >
> > > > > If I disconnect the plug in the back, is this essentially
> disconnecting
> > > the
> > > > > computer? Should I be able to get it to idle smoothly like that?
> > > > >
> > > > > It won't idle. I tried cleaning the idle tubes, but it still almost
> > > dies,
> > > > > then surges to 1500RPM, then repeats the process.
> > > > >
> > > > > What should I be seeing when I look down the throat when idling? It
> is
> > > > > presently dripping. This sounds like the symptom of clogged idle
> tubes,
> > > but
> > > > > I can't seem to get them any more unclogged. I poked wire into the
> > > bottom,
> > > > > until it got to the top. There is a 90 degree bend in the path, so I
> > > can't
> > > > > get the wire out the other end. I can easily blow through the tubes.
> > > > >
> > > > > Any thoughts?

bllsht

In message <BR_Xc.525892$Gx4.278273@bgtnsc04-news.ops.worldnet.att.net>, "Steve
Foley" wrote:

>Memories are returning........
>
>The O2 sensor was replaced. This didn't help.
>
>There is a circuit board next to the battery that he told me was dead. He
>also said no replacements were available. This board has 5 diodes and 2
>resistors in it. I replaced the resistors, but could not decode the original
>values, so guessed at the ohms.

Those 2 aren't resistors, they're fuses. 1 amp if I remember correctly.

>
>Some history.
>
>Many years ago, I had the engine replaced. The meatball I paid to finish ran
>some ires too close to the exhaust manifold. While driving down the highway,
>something shorted out and 22 wires became one. Among other things, this
>caused the starter to engage. This is not a good thing to do to the starter
>or flywheel when you're going 70.
>
>I had the wires replaced, and everything seemed fine. Looks like there may
>still be some nagging problems.
>
>
>
>"Mike Romain" <romainm@sympatico.ca> wrote in message
>news:412FBF59.D29FF10D@sympatico.ca...
>> Very likely a dead O2 sensor.
>>
>> Those engines and the Carter BBD run really clean when tuned as far as
>> emissions goes.
>>
>> Mike
>>
>> Steve Foley wrote:
>> >
>> > Charcoal canister is only a part of the problem.
>> >
>> > I disconnected the charcoal canister, and the problem improved slightly.
>I
>> > adjusted the mixture, and the Jeep runs smoother than it ever did.
>> >
>> > Apparently, my computer is dead, or at least not functioning.
>> >
>> > I had a Jeep dealer working in it two years ago, and he told me the
>stepper
>> > motor was good, just not moving.
>> >
>> > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
>Dale
>> > Becketts primer at off-road.com. At least now I know what I'm looking
>at.
>> > Checked the water coolant sensor and the sensor in the air cleaner, and
>both
>> > appear to be working. Opening/closing the connections make no
>difference.
>> >
>> > It passed emissions two years running just like it is now (no computer,
>but
>> > idles smoothly) so I guess I'll have another try.
>> >
>> > I'll post the results.
>> >
>> > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > news:412D0C84.6A4F2A19@sympatico.ca...
>> > > The surging suggests a dead charcoal canister.
>> > >
>> > > To test it, trace the PCV line to the rear of the carb. There you
>will
>> > > find a solenoid ot better a T fitting with a line going to the top of
>> > > the charcoal canister way down under the brake master.
>> > >
>> > > At idle pinch this PCV line to the canister closed. If the idle
>mellows
>> > > out like I bet it will, the canister purge valve is shot. There is no
>> > > fix, you need a new canister.
>> > >
>> > > This also should have some oil spitting into the air filter likely...
>> > >
>> > > Mike
>> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > 88 Cherokee 235 BFG AT's
>> > >
>> > > Steve Foley wrote:
>> > > >
>> > > > Looking for some basic info on my Carter BBD.
>> > > >
>> > > > If I disconnect the plug in the back, is this essentially
>disconnecting
>> > the
>> > > > computer? Should I be able to get it to idle smoothly like that?
>> > > >
>> > > > It won't idle. I tried cleaning the idle tubes, but it still almost
>> > dies,
>> > > > then surges to 1500RPM, then repeats the process.
>> > > >
>> > > > What should I be seeing when I look down the throat when idling? It
>is
>> > > > presently dripping. This sounds like the symptom of clogged idle
>tubes,
>> > but
>> > > > I can't seem to get them any more unclogged. I poked wire into the
>> > bottom,
>> > > > until it got to the top. There is a 90 degree bend in the path, so I
>> > can't
>> > > > get the wire out the other end. I can easily blow through the tubes.
>> > > >
>> > > > Any thoughts?
>

bllsht

In message <BR_Xc.525892$Gx4.278273@bgtnsc04-news.ops.worldnet.att.net>, "Steve
Foley" wrote:

>Memories are returning........
>
>The O2 sensor was replaced. This didn't help.
>
>There is a circuit board next to the battery that he told me was dead. He
>also said no replacements were available. This board has 5 diodes and 2
>resistors in it. I replaced the resistors, but could not decode the original
>values, so guessed at the ohms.

Those 2 aren't resistors, they're fuses. 1 amp if I remember correctly.

>
>Some history.
>
>Many years ago, I had the engine replaced. The meatball I paid to finish ran
>some ires too close to the exhaust manifold. While driving down the highway,
>something shorted out and 22 wires became one. Among other things, this
>caused the starter to engage. This is not a good thing to do to the starter
>or flywheel when you're going 70.
>
>I had the wires replaced, and everything seemed fine. Looks like there may
>still be some nagging problems.
>
>
>
>"Mike Romain" <romainm@sympatico.ca> wrote in message
>news:412FBF59.D29FF10D@sympatico.ca...
>> Very likely a dead O2 sensor.
>>
>> Those engines and the Carter BBD run really clean when tuned as far as
>> emissions goes.
>>
>> Mike
>>
>> Steve Foley wrote:
>> >
>> > Charcoal canister is only a part of the problem.
>> >
>> > I disconnected the charcoal canister, and the problem improved slightly.
>I
>> > adjusted the mixture, and the Jeep runs smoother than it ever did.
>> >
>> > Apparently, my computer is dead, or at least not functioning.
>> >
>> > I had a Jeep dealer working in it two years ago, and he told me the
>stepper
>> > motor was good, just not moving.
>> >
>> > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
>Dale
>> > Becketts primer at off-road.com. At least now I know what I'm looking
>at.
>> > Checked the water coolant sensor and the sensor in the air cleaner, and
>both
>> > appear to be working. Opening/closing the connections make no
>difference.
>> >
>> > It passed emissions two years running just like it is now (no computer,
>but
>> > idles smoothly) so I guess I'll have another try.
>> >
>> > I'll post the results.
>> >
>> > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > news:412D0C84.6A4F2A19@sympatico.ca...
>> > > The surging suggests a dead charcoal canister.
>> > >
>> > > To test it, trace the PCV line to the rear of the carb. There you
>will
>> > > find a solenoid ot better a T fitting with a line going to the top of
>> > > the charcoal canister way down under the brake master.
>> > >
>> > > At idle pinch this PCV line to the canister closed. If the idle
>mellows
>> > > out like I bet it will, the canister purge valve is shot. There is no
>> > > fix, you need a new canister.
>> > >
>> > > This also should have some oil spitting into the air filter likely...
>> > >
>> > > Mike
>> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > 88 Cherokee 235 BFG AT's
>> > >
>> > > Steve Foley wrote:
>> > > >
>> > > > Looking for some basic info on my Carter BBD.
>> > > >
>> > > > If I disconnect the plug in the back, is this essentially
>disconnecting
>> > the
>> > > > computer? Should I be able to get it to idle smoothly like that?
>> > > >
>> > > > It won't idle. I tried cleaning the idle tubes, but it still almost
>> > dies,
>> > > > then surges to 1500RPM, then repeats the process.
>> > > >
>> > > > What should I be seeing when I look down the throat when idling? It
>is
>> > > > presently dripping. This sounds like the symptom of clogged idle
>tubes,
>> > but
>> > > > I can't seem to get them any more unclogged. I poked wire into the
>> > bottom,
>> > > > until it got to the top. There is a 90 degree bend in the path, so I
>> > can't
>> > > > get the wire out the other end. I can easily blow through the tubes.
>> > > >
>> > > > Any thoughts?
>

bllsht

In message <BR_Xc.525892$Gx4.278273@bgtnsc04-news.ops.worldnet.att.net>, "Steve
Foley" wrote:

>Memories are returning........
>
>The O2 sensor was replaced. This didn't help.
>
>There is a circuit board next to the battery that he told me was dead. He
>also said no replacements were available. This board has 5 diodes and 2
>resistors in it. I replaced the resistors, but could not decode the original
>values, so guessed at the ohms.

Those 2 aren't resistors, they're fuses. 1 amp if I remember correctly.

>
>Some history.
>
>Many years ago, I had the engine replaced. The meatball I paid to finish ran
>some ires too close to the exhaust manifold. While driving down the highway,
>something shorted out and 22 wires became one. Among other things, this
>caused the starter to engage. This is not a good thing to do to the starter
>or flywheel when you're going 70.
>
>I had the wires replaced, and everything seemed fine. Looks like there may
>still be some nagging problems.
>
>
>
>"Mike Romain" <romainm@sympatico.ca> wrote in message
>news:412FBF59.D29FF10D@sympatico.ca...
>> Very likely a dead O2 sensor.
>>
>> Those engines and the Carter BBD run really clean when tuned as far as
>> emissions goes.
>>
>> Mike
>>
>> Steve Foley wrote:
>> >
>> > Charcoal canister is only a part of the problem.
>> >
>> > I disconnected the charcoal canister, and the problem improved slightly.
>I
>> > adjusted the mixture, and the Jeep runs smoother than it ever did.
>> >
>> > Apparently, my computer is dead, or at least not functioning.
>> >
>> > I had a Jeep dealer working in it two years ago, and he told me the
>stepper
>> > motor was good, just not moving.
>> >
>> > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
>Dale
>> > Becketts primer at off-road.com. At least now I know what I'm looking
>at.
>> > Checked the water coolant sensor and the sensor in the air cleaner, and
>both
>> > appear to be working. Opening/closing the connections make no
>difference.
>> >
>> > It passed emissions two years running just like it is now (no computer,
>but
>> > idles smoothly) so I guess I'll have another try.
>> >
>> > I'll post the results.
>> >
>> > "Mike Romain" <romainm@sympatico.ca> wrote in message
>> > news:412D0C84.6A4F2A19@sympatico.ca...
>> > > The surging suggests a dead charcoal canister.
>> > >
>> > > To test it, trace the PCV line to the rear of the carb. There you
>will
>> > > find a solenoid ot better a T fitting with a line going to the top of
>> > > the charcoal canister way down under the brake master.
>> > >
>> > > At idle pinch this PCV line to the canister closed. If the idle
>mellows
>> > > out like I bet it will, the canister purge valve is shot. There is no
>> > > fix, you need a new canister.
>> > >
>> > > This also should have some oil spitting into the air filter likely...
>> > >
>> > > Mike
>> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > > 88 Cherokee 235 BFG AT's
>> > >
>> > > Steve Foley wrote:
>> > > >
>> > > > Looking for some basic info on my Carter BBD.
>> > > >
>> > > > If I disconnect the plug in the back, is this essentially
>disconnecting
>> > the
>> > > > computer? Should I be able to get it to idle smoothly like that?
>> > > >
>> > > > It won't idle. I tried cleaning the idle tubes, but it still almost
>> > dies,
>> > > > then surges to 1500RPM, then repeats the process.
>> > > >
>> > > > What should I be seeing when I look down the throat when idling? It
>is
>> > > > presently dripping. This sounds like the symptom of clogged idle
>tubes,
>> > but
>> > > > I can't seem to get them any more unclogged. I poked wire into the
>> > bottom,
>> > > > until it got to the top. There is a 90 degree bend in the path, so I
>> > can't
>> > > > get the wire out the other end. I can easily blow through the tubes.
>> > > >
>> > > > Any thoughts?
>

Steve Foley

That would make sense. The melt down blew the fuses, and the computer hasn't
worked since.

BTW, I got an inspection sticker yesterday morning. It seems there are
problems with the emissions testing systems here in Massachusetts. Until
they get it figured out, they're only doing emissions testings on 1996 and
newer vehicles.

The Jeep's running fine new. Charcoal canister line is plugged, and I
adjusted the mixture manually.

"bllsht" <nospam@invaliddot.net> wrote in message
news:jnu2j09hvja74v0h6mrdkde2pupnli8r0q@4ax.com...
> In message <BR_Xc.525892$Gx4.278273@bgtnsc04-news.ops.worldnet.att.net>,
"Steve
> Foley" wrote:
>
> >Memories are returning........
> >
> >The O2 sensor was replaced. This didn't help.
> >
> >There is a circuit board next to the battery that he told me was dead. He
> >also said no replacements were available. This board has 5 diodes and 2
> >resistors in it. I replaced the resistors, but could not decode the
original
> >values, so guessed at the ohms.
>
> Those 2 aren't resistors, they're fuses. 1 amp if I remember correctly.
>
> >
> >Some history.
> >
> >Many years ago, I had the engine replaced. The meatball I paid to finish
ran
> >some ires too close to the exhaust manifold. While driving down the
highway,
> >something shorted out and 22 wires became one. Among other things, this
> >caused the starter to engage. This is not a good thing to do to the
starter
> >or flywheel when you're going 70.
> >
> >I had the wires replaced, and everything seemed fine. Looks like there
may
> >still be some nagging problems.
> >
> >
> >
> >"Mike Romain" <romainm@sympatico.ca> wrote in message
> >news:412FBF59.D29FF10D@sympatico.ca...
> >> Very likely a dead O2 sensor.
> >>
> >> Those engines and the Carter BBD run really clean when tuned as far as
> >> emissions goes.
> >>
> >> Mike
> >>
> >> Steve Foley wrote:
> >> >
> >> > Charcoal canister is only a part of the problem.
> >> >
> >> > I disconnected the charcoal canister, and the problem improved
slightly.
> >I
> >> > adjusted the mixture, and the Jeep runs smoother than it ever did.
> >> >
> >> > Apparently, my computer is dead, or at least not functioning.
> >> >
> >> > I had a Jeep dealer working in it two years ago, and he told me the
> >stepper
> >> > motor was good, just not moving.
> >> >
> >> > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
> >Dale
> >> > Becketts primer at off-road.com. At least now I know what I'm looking
> >at.
> >> > Checked the water coolant sensor and the sensor in the air cleaner,
and
> >both
> >> > appear to be working. Opening/closing the connections make no
> >difference.
> >> >
> >> > It passed emissions two years running just like it is now (no
computer,
> >but
> >> > idles smoothly) so I guess I'll have another try.
> >> >
> >> > I'll post the results.
> >> >
> >> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> >> > news:412D0C84.6A4F2A19@sympatico.ca...
> >> > > The surging suggests a dead charcoal canister.
> >> > >
> >> > > To test it, trace the PCV line to the rear of the carb. There you
> >will
> >> > > find a solenoid ot better a T fitting with a line going to the top
of
> >> > > the charcoal canister way down under the brake master.
> >> > >
> >> > > At idle pinch this PCV line to the canister closed. If the idle
> >mellows
> >> > > out like I bet it will, the canister purge valve is shot. There is
no
> >> > > fix, you need a new canister.
> >> > >
> >> > > This also should have some oil spitting into the air filter
likely...
> >> > >
> >> > > Mike
> >> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > > 88 Cherokee 235 BFG AT's
> >> > >
> >> > > Steve Foley wrote:
> >> > > >
> >> > > > Looking for some basic info on my Carter BBD.
> >> > > >
> >> > > > If I disconnect the plug in the back, is this essentially
> >disconnecting
> >> > the
> >> > > > computer? Should I be able to get it to idle smoothly like that?
> >> > > >
> >> > > > It won't idle. I tried cleaning the idle tubes, but it still
almost
> >> > dies,
> >> > > > then surges to 1500RPM, then repeats the process.
> >> > > >
> >> > > > What should I be seeing when I look down the throat when idling?
It
> >is
> >> > > > presently dripping. This sounds like the symptom of clogged idle
> >tubes,
> >> > but
> >> > > > I can't seem to get them any more unclogged. I poked wire into
the
> >> > bottom,
> >> > > > until it got to the top. There is a 90 degree bend in the path,
so I
> >> > can't
> >> > > > get the wire out the other end. I can easily blow through the
tubes.
> >> > > >
> >> > > > Any thoughts?
> >
>

Steve Foley

That would make sense. The melt down blew the fuses, and the computer hasn't
worked since.

BTW, I got an inspection sticker yesterday morning. It seems there are
problems with the emissions testing systems here in Massachusetts. Until
they get it figured out, they're only doing emissions testings on 1996 and
newer vehicles.

The Jeep's running fine new. Charcoal canister line is plugged, and I
adjusted the mixture manually.

"bllsht" <nospam@invaliddot.net> wrote in message
news:jnu2j09hvja74v0h6mrdkde2pupnli8r0q@4ax.com...
> In message <BR_Xc.525892$Gx4.278273@bgtnsc04-news.ops.worldnet.att.net>,
"Steve
> Foley" wrote:
>
> >Memories are returning........
> >
> >The O2 sensor was replaced. This didn't help.
> >
> >There is a circuit board next to the battery that he told me was dead. He
> >also said no replacements were available. This board has 5 diodes and 2
> >resistors in it. I replaced the resistors, but could not decode the
original
> >values, so guessed at the ohms.
>
> Those 2 aren't resistors, they're fuses. 1 amp if I remember correctly.
>
> >
> >Some history.
> >
> >Many years ago, I had the engine replaced. The meatball I paid to finish
ran
> >some ires too close to the exhaust manifold. While driving down the
highway,
> >something shorted out and 22 wires became one. Among other things, this
> >caused the starter to engage. This is not a good thing to do to the
starter
> >or flywheel when you're going 70.
> >
> >I had the wires replaced, and everything seemed fine. Looks like there
may
> >still be some nagging problems.
> >
> >
> >
> >"Mike Romain" <romainm@sympatico.ca> wrote in message
> >news:412FBF59.D29FF10D@sympatico.ca...
> >> Very likely a dead O2 sensor.
> >>
> >> Those engines and the Carter BBD run really clean when tuned as far as
> >> emissions goes.
> >>
> >> Mike
> >>
> >> Steve Foley wrote:
> >> >
> >> > Charcoal canister is only a part of the problem.
> >> >
> >> > I disconnected the charcoal canister, and the problem improved
slightly.
> >I
> >> > adjusted the mixture, and the Jeep runs smoother than it ever did.
> >> >
> >> > Apparently, my computer is dead, or at least not functioning.
> >> >
> >> > I had a Jeep dealer working in it two years ago, and he told me the
> >stepper
> >> > motor was good, just not moving.
> >> >
> >> > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
> >Dale
> >> > Becketts primer at off-road.com. At least now I know what I'm looking
> >at.
> >> > Checked the water coolant sensor and the sensor in the air cleaner,
and
> >both
> >> > appear to be working. Opening/closing the connections make no
> >difference.
> >> >
> >> > It passed emissions two years running just like it is now (no
computer,
> >but
> >> > idles smoothly) so I guess I'll have another try.
> >> >
> >> > I'll post the results.
> >> >
> >> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> >> > news:412D0C84.6A4F2A19@sympatico.ca...
> >> > > The surging suggests a dead charcoal canister.
> >> > >
> >> > > To test it, trace the PCV line to the rear of the carb. There you
> >will
> >> > > find a solenoid ot better a T fitting with a line going to the top
of
> >> > > the charcoal canister way down under the brake master.
> >> > >
> >> > > At idle pinch this PCV line to the canister closed. If the idle
> >mellows
> >> > > out like I bet it will, the canister purge valve is shot. There is
no
> >> > > fix, you need a new canister.
> >> > >
> >> > > This also should have some oil spitting into the air filter
likely...
> >> > >
> >> > > Mike
> >> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > > 88 Cherokee 235 BFG AT's
> >> > >
> >> > > Steve Foley wrote:
> >> > > >
> >> > > > Looking for some basic info on my Carter BBD.
> >> > > >
> >> > > > If I disconnect the plug in the back, is this essentially
> >disconnecting
> >> > the
> >> > > > computer? Should I be able to get it to idle smoothly like that?
> >> > > >
> >> > > > It won't idle. I tried cleaning the idle tubes, but it still
almost
> >> > dies,
> >> > > > then surges to 1500RPM, then repeats the process.
> >> > > >
> >> > > > What should I be seeing when I look down the throat when idling?
It
> >is
> >> > > > presently dripping. This sounds like the symptom of clogged idle
> >tubes,
> >> > but
> >> > > > I can't seem to get them any more unclogged. I poked wire into
the
> >> > bottom,
> >> > > > until it got to the top. There is a 90 degree bend in the path,
so I
> >> > can't
> >> > > > get the wire out the other end. I can easily blow through the
tubes.
> >> > > >
> >> > > > Any thoughts?
> >
>

Steve Foley

That would make sense. The melt down blew the fuses, and the computer hasn't
worked since.

BTW, I got an inspection sticker yesterday morning. It seems there are
problems with the emissions testing systems here in Massachusetts. Until
they get it figured out, they're only doing emissions testings on 1996 and
newer vehicles.

The Jeep's running fine new. Charcoal canister line is plugged, and I
adjusted the mixture manually.

"bllsht" <nospam@invaliddot.net> wrote in message
news:jnu2j09hvja74v0h6mrdkde2pupnli8r0q@4ax.com...
> In message <BR_Xc.525892$Gx4.278273@bgtnsc04-news.ops.worldnet.att.net>,
"Steve
> Foley" wrote:
>
> >Memories are returning........
> >
> >The O2 sensor was replaced. This didn't help.
> >
> >There is a circuit board next to the battery that he told me was dead. He
> >also said no replacements were available. This board has 5 diodes and 2
> >resistors in it. I replaced the resistors, but could not decode the
original
> >values, so guessed at the ohms.
>
> Those 2 aren't resistors, they're fuses. 1 amp if I remember correctly.
>
> >
> >Some history.
> >
> >Many years ago, I had the engine replaced. The meatball I paid to finish
ran
> >some ires too close to the exhaust manifold. While driving down the
highway,
> >something shorted out and 22 wires became one. Among other things, this
> >caused the starter to engage. This is not a good thing to do to the
starter
> >or flywheel when you're going 70.
> >
> >I had the wires replaced, and everything seemed fine. Looks like there
may
> >still be some nagging problems.
> >
> >
> >
> >"Mike Romain" <romainm@sympatico.ca> wrote in message
> >news:412FBF59.D29FF10D@sympatico.ca...
> >> Very likely a dead O2 sensor.
> >>
> >> Those engines and the Carter BBD run really clean when tuned as far as
> >> emissions goes.
> >>
> >> Mike
> >>
> >> Steve Foley wrote:
> >> >
> >> > Charcoal canister is only a part of the problem.
> >> >
> >> > I disconnected the charcoal canister, and the problem improved
slightly.
> >I
> >> > adjusted the mixture, and the Jeep runs smoother than it ever did.
> >> >
> >> > Apparently, my computer is dead, or at least not functioning.
> >> >
> >> > I had a Jeep dealer working in it two years ago, and he told me the
> >stepper
> >> > motor was good, just not moving.
> >> >
> >> > I went to look at http://home.sprynet.com/~dale02/ignmods.htm and at
> >Dale
> >> > Becketts primer at off-road.com. At least now I know what I'm looking
> >at.
> >> > Checked the water coolant sensor and the sensor in the air cleaner,
and
> >both
> >> > appear to be working. Opening/closing the connections make no
> >difference.
> >> >
> >> > It passed emissions two years running just like it is now (no
computer,
> >but
> >> > idles smoothly) so I guess I'll have another try.
> >> >
> >> > I'll post the results.
> >> >
> >> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> >> > news:412D0C84.6A4F2A19@sympatico.ca...
> >> > > The surging suggests a dead charcoal canister.
> >> > >
> >> > > To test it, trace the PCV line to the rear of the carb. There you
> >will
> >> > > find a solenoid ot better a T fitting with a line going to the top
of
> >> > > the charcoal canister way down under the brake master.
> >> > >
> >> > > At idle pinch this PCV line to the canister closed. If the idle
> >mellows
> >> > > out like I bet it will, the canister purge valve is shot. There is
no
> >> > > fix, you need a new canister.
> >> > >
> >> > > This also should have some oil spitting into the air filter
likely...
> >> > >
> >> > > Mike
> >> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > > 88 Cherokee 235 BFG AT's
> >> > >
> >> > > Steve Foley wrote:
> >> > > >
> >> > > > Looking for some basic info on my Carter BBD.
> >> > > >
> >> > > > If I disconnect the plug in the back, is this essentially
> >disconnecting
> >> > the
> >> > > > computer? Should I be able to get it to idle smoothly like that?
> >> > > >
> >> > > > It won't idle. I tried cleaning the idle tubes, but it still
almost
> >> > dies,
> >> > > > then surges to 1500RPM, then repeats the process.
> >> > > >
> >> > > > What should I be seeing when I look down the throat when idling?
It
> >is
> >> > > > presently dripping. This sounds like the symptom of clogged idle
> >tubes,
> >> > but
> >> > > > I can't seem to get them any more unclogged. I poked wire into
the
> >> > bottom,
> >> > > > until it got to the top. There is a 90 degree bend in the path,
so I
> >> > can't
> >> > > > get the wire out the other end. I can easily blow through the
tubes.
> >> > > >
> >> > > > Any thoughts?
> >
>