Troy

Hey Doug, I've been to your site and seen the supercharger kit you've
installed... If you actually drive conservatively is your gas mileage
better with that thing? I've been considering a supercharger and you are
the only one I know of who has one.

Troy


"DougW" <post.replies@invalid.address> wrote in message
news:W4PGg.2013$JR5.1728@dukeread11...
> Matt Macchiarolo wrote:
>> I am awestruck that the front pinion seal leak stored a code.
>>
>> ;-)
>
> <AOL> m33 t00! </AOL>
>
>> <yared22311> wrote...
>>> Last week, the service engine light was on. I went to Jeep and they
>>> said "front pinion seal leaking" and "recommends BG induction
>>> service". This happened when I put the AC on and the Jeep just stopped.
>>> I had
>>> to turn the ignition on again.
>
> I'm betting crudded up battery terminals or slow idle air adjustment.
>
> What codes did it store.
> Ignition on-off-on-off-on then read what it puts on the odometer
> display.
>
>>> is "front pinion seal leaking" for $160.00 and
>>> "recommends BG induction service" $145.00
>>> normal for Jeep Sport Cherokke 2000 with 79,500 miles on it?
>
> in short, no.
>
> Pinion seals rarely leak unless your running some big tires and
> putting serious stress on the box. Just keep an eye on the fluid
> and make sure it's not a leaky hose. I'd probably just wipe the
> steering box down with some paper towel and watch it closely.
>
> BG induction service is a fancy way of saying "put stuff down
> the throttle body and injector rail to clean the engine intake.
> Same as the folks that do this. http://www.motorvac.com/
> Lots of places do this for about $100 or so. Generally if your
> engine has been well taken care of (regular oil changes) and your
> not all city/stop/go then you probably don't need it. You could
> just put some Techron fuel systems cleaner in the tank and clean
> out the throttle body.
> http://revbeergoggles.com/tb/tb.html
>
> On a low use/short trip engine, the motorvac isn't a bad idea.
> I had it done at about 100,000 miles while tracking down some
> ping.. ping that turned out to be due to a bad coil. go figure.
>
> --
> -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> Banks Header - and BEER, in the fridge!
>
>
>
>

DougW

Troy wrote:
> Hey Doug, I've been to your site and seen the supercharger kit you've
> installed... If you actually drive conservatively is your gas mileage
> better with that thing? I've been considering a supercharger and you
> are the only one I know of who has one.

You loose about 1-2 MPG because the superchargers are paracitic. A turbo
would be better for fuel economy since it runs off the exhaust. The trade
is where you want the power. Superchargers are for low RPM grunt and turbos
are for high RPM.

http://www.revbeergoggles.com/gasminder/gasminder.pdf

Can you spot when I put on the charger?

On the highway the Jeep gets fairly good milage and will get good city
milage if I'm light on the fuel. Of course if I drive like a nutjob the
gas milage goes down to about 9.... :]

I went charger simply because it was easier than trying to squeeze in
a turbo and didn't require a lot of custom fabrication.

--
DougW

DougW

Troy wrote:
> Hey Doug, I've been to your site and seen the supercharger kit you've
> installed... If you actually drive conservatively is your gas mileage
> better with that thing? I've been considering a supercharger and you
> are the only one I know of who has one.

You loose about 1-2 MPG because the superchargers are paracitic. A turbo
would be better for fuel economy since it runs off the exhaust. The trade
is where you want the power. Superchargers are for low RPM grunt and turbos
are for high RPM.

http://www.revbeergoggles.com/gasminder/gasminder.pdf

Can you spot when I put on the charger?

On the highway the Jeep gets fairly good milage and will get good city
milage if I'm light on the fuel. Of course if I drive like a nutjob the
gas milage goes down to about 9.... :]

I went charger simply because it was easier than trying to squeeze in
a turbo and didn't require a lot of custom fabrication.

--
DougW

DougW

Troy wrote:
> Hey Doug, I've been to your site and seen the supercharger kit you've
> installed... If you actually drive conservatively is your gas mileage
> better with that thing? I've been considering a supercharger and you
> are the only one I know of who has one.

You loose about 1-2 MPG because the superchargers are paracitic. A turbo
would be better for fuel economy since it runs off the exhaust. The trade
is where you want the power. Superchargers are for low RPM grunt and turbos
are for high RPM.

http://www.revbeergoggles.com/gasminder/gasminder.pdf

Can you spot when I put on the charger?

On the highway the Jeep gets fairly good milage and will get good city
milage if I'm light on the fuel. Of course if I drive like a nutjob the
gas milage goes down to about 9.... :]

I went charger simply because it was easier than trying to squeeze in
a turbo and didn't require a lot of custom fabrication.

--
DougW

DougW

Troy wrote:
> Hey Doug, I've been to your site and seen the supercharger kit you've
> installed... If you actually drive conservatively is your gas mileage
> better with that thing? I've been considering a supercharger and you
> are the only one I know of who has one.

You loose about 1-2 MPG because the superchargers are paracitic. A turbo
would be better for fuel economy since it runs off the exhaust. The trade
is where you want the power. Superchargers are for low RPM grunt and turbos
are for high RPM.

http://www.revbeergoggles.com/gasminder/gasminder.pdf

Can you spot when I put on the charger?

On the highway the Jeep gets fairly good milage and will get good city
milage if I'm light on the fuel. Of course if I drive like a nutjob the
gas milage goes down to about 9.... :]

I went charger simply because it was easier than trying to squeeze in
a turbo and didn't require a lot of custom fabrication.

--
DougW

Mike Romain

Pinion seals just don't up and leak normally, especially at those low a
miles. Something has to cause the seal failure. That 'usually' means
you have an out of balance vibrating driveshaft. This is usually due to
a dead u-joint.

If the u-joint vibrates long enough it will also take out the pinion
bearing which then allows play for the seal to leak.

Just replacing the seal for $160.00 will do nothing except line the
pockets of some $tealership. The cause of the failure needs to be
addressed.

$145.00 to pour some cleaner down the intake???? I personally learned
to use a pint of ATF 'slowly' poured in the intake while keeping the
engine running by hand to clean all the carbon out of the combustion
chamber. It makes them clean as new. Others have posted good success
by just pouring a pint of water slowly down the same way to shock the
carbon off. The way I learned makes a 'massive' cloud of smoke, the
water way doesn't.

Costs less then five bucks....

Also worth mentioning is on the older Cherokees, there is an idiot light
timer that goes off around 80K miles to 'remind' you it is time to spend
money at the $tealership. They will usually want to change the O2
sensor and anything else they can sucker you for before charging you an
extra $80.00 or so just to reset the timer so it can go off in another
80K miles again.

At least on the old Cherokee, we could just unplug the sucker....

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)

yared22311@yahoo.com wrote:
>
> Last week, the service engine light was on. I went to Jeep and they
> said "front pinion seal leaking" and "recommends BG induction service".
>
> This happened when I put the AC on and the Jeep just stopped. I had to
> turn the ignition on again.
>
> is "front pinion seal leaking" for $160.00 and
> "recommends BG induction service" $145.00
> normal for Jeep Sport Cherokke 2000 with 79,500 miles on it?
>
> Thanks
> Mike

Mike Romain

Pinion seals just don't up and leak normally, especially at those low a
miles. Something has to cause the seal failure. That 'usually' means
you have an out of balance vibrating driveshaft. This is usually due to
a dead u-joint.

If the u-joint vibrates long enough it will also take out the pinion
bearing which then allows play for the seal to leak.

Just replacing the seal for $160.00 will do nothing except line the
pockets of some $tealership. The cause of the failure needs to be
addressed.

$145.00 to pour some cleaner down the intake???? I personally learned
to use a pint of ATF 'slowly' poured in the intake while keeping the
engine running by hand to clean all the carbon out of the combustion
chamber. It makes them clean as new. Others have posted good success
by just pouring a pint of water slowly down the same way to shock the
carbon off. The way I learned makes a 'massive' cloud of smoke, the
water way doesn't.

Costs less then five bucks....

Also worth mentioning is on the older Cherokees, there is an idiot light
timer that goes off around 80K miles to 'remind' you it is time to spend
money at the $tealership. They will usually want to change the O2
sensor and anything else they can sucker you for before charging you an
extra $80.00 or so just to reset the timer so it can go off in another
80K miles again.

At least on the old Cherokee, we could just unplug the sucker....

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)

yared22311@yahoo.com wrote:
>
> Last week, the service engine light was on. I went to Jeep and they
> said "front pinion seal leaking" and "recommends BG induction service".
>
> This happened when I put the AC on and the Jeep just stopped. I had to
> turn the ignition on again.
>
> is "front pinion seal leaking" for $160.00 and
> "recommends BG induction service" $145.00
> normal for Jeep Sport Cherokke 2000 with 79,500 miles on it?
>
> Thanks
> Mike

Mike Romain

Pinion seals just don't up and leak normally, especially at those low a
miles. Something has to cause the seal failure. That 'usually' means
you have an out of balance vibrating driveshaft. This is usually due to
a dead u-joint.

If the u-joint vibrates long enough it will also take out the pinion
bearing which then allows play for the seal to leak.

Just replacing the seal for $160.00 will do nothing except line the
pockets of some $tealership. The cause of the failure needs to be
addressed.

$145.00 to pour some cleaner down the intake???? I personally learned
to use a pint of ATF 'slowly' poured in the intake while keeping the
engine running by hand to clean all the carbon out of the combustion
chamber. It makes them clean as new. Others have posted good success
by just pouring a pint of water slowly down the same way to shock the
carbon off. The way I learned makes a 'massive' cloud of smoke, the
water way doesn't.

Costs less then five bucks....

Also worth mentioning is on the older Cherokees, there is an idiot light
timer that goes off around 80K miles to 'remind' you it is time to spend
money at the $tealership. They will usually want to change the O2
sensor and anything else they can sucker you for before charging you an
extra $80.00 or so just to reset the timer so it can go off in another
80K miles again.

At least on the old Cherokee, we could just unplug the sucker....

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)

yared22311@yahoo.com wrote:
>
> Last week, the service engine light was on. I went to Jeep and they
> said "front pinion seal leaking" and "recommends BG induction service".
>
> This happened when I put the AC on and the Jeep just stopped. I had to
> turn the ignition on again.
>
> is "front pinion seal leaking" for $160.00 and
> "recommends BG induction service" $145.00
> normal for Jeep Sport Cherokke 2000 with 79,500 miles on it?
>
> Thanks
> Mike

Mike Romain

Pinion seals just don't up and leak normally, especially at those low a
miles. Something has to cause the seal failure. That 'usually' means
you have an out of balance vibrating driveshaft. This is usually due to
a dead u-joint.

If the u-joint vibrates long enough it will also take out the pinion
bearing which then allows play for the seal to leak.

Just replacing the seal for $160.00 will do nothing except line the
pockets of some $tealership. The cause of the failure needs to be
addressed.

$145.00 to pour some cleaner down the intake???? I personally learned
to use a pint of ATF 'slowly' poured in the intake while keeping the
engine running by hand to clean all the carbon out of the combustion
chamber. It makes them clean as new. Others have posted good success
by just pouring a pint of water slowly down the same way to shock the
carbon off. The way I learned makes a 'massive' cloud of smoke, the
water way doesn't.

Costs less then five bucks....

Also worth mentioning is on the older Cherokees, there is an idiot light
timer that goes off around 80K miles to 'remind' you it is time to spend
money at the $tealership. They will usually want to change the O2
sensor and anything else they can sucker you for before charging you an
extra $80.00 or so just to reset the timer so it can go off in another
80K miles again.

At least on the old Cherokee, we could just unplug the sucker....

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)

yared22311@yahoo.com wrote:
>
> Last week, the service engine light was on. I went to Jeep and they
> said "front pinion seal leaking" and "recommends BG induction service".
>
> This happened when I put the AC on and the Jeep just stopped. I had to
> turn the ignition on again.
>
> is "front pinion seal leaking" for $160.00 and
> "recommends BG induction service" $145.00
> normal for Jeep Sport Cherokke 2000 with 79,500 miles on it?
>
> Thanks
> Mike

Matt Macchiarolo

My TJ had leaking pinion seals at 7,000 miles, in stock configuration. That
tells me that quality-control at Dana wasn't what it should be, and it was
either a faulty seal or it wasn't assembled properly; fixed under warranty.
My old 93 Grand leaked fron the rear diff cover at 10,000 miles. Wife's '04
is starting to get wet at the pinion seals and front diff cover at 31,000
miles, but this is after a lift, so I doubt the warranty will be honored,
but to be honest I have not checked. I need to change the gears anyway so I
won't worry about it until then.

Matt

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:44EC55D4.5543EB9F@sympatico.ca...
> Pinion seals just don't up and leak normally, especially at those low a
> miles. Something has to cause the seal failure. That 'usually' means
> you have an out of balance vibrating driveshaft. This is usually due to
> a dead u-joint.
>
> If the u-joint vibrates long enough it will also take out the pinion
> bearing which then allows play for the seal to leak.
>
> Just replacing the seal for $160.00 will do nothing except line the
> pockets of some $tealership. The cause of the failure needs to be
> addressed.
>
> $145.00 to pour some cleaner down the intake???? I personally learned
> to use a pint of ATF 'slowly' poured in the intake while keeping the
> engine running by hand to clean all the carbon out of the combustion
> chamber. It makes them clean as new. Others have posted good success
> by just pouring a pint of water slowly down the same way to shock the
> carbon off. The way I learned makes a 'massive' cloud of smoke, the
> water way doesn't.
>
> Costs less then five bucks....
>
> Also worth mentioning is on the older Cherokees, there is an idiot light
> timer that goes off around 80K miles to 'remind' you it is time to spend
> money at the $tealership. They will usually want to change the O2
> sensor and anything else they can sucker you for before charging you an
> extra $80.00 or so just to reset the timer so it can go off in another
> 80K miles again.
>
> At least on the old Cherokee, we could just unplug the sucker....
>
> 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)
>
> yared22311@yahoo.com wrote:
>>
>> Last week, the service engine light was on. I went to Jeep and they
>> said "front pinion seal leaking" and "recommends BG induction service".
>>
>> This happened when I put the AC on and the Jeep just stopped. I had to
>> turn the ignition on again.
>>
>> is "front pinion seal leaking" for $160.00 and
>> "recommends BG induction service" $145.00
>> normal for Jeep Sport Cherokke 2000 with 79,500 miles on it?
>>
>> Thanks
>> Mike