That valve defaults in the open position with no vacuum applied in my
88.

Don't forget the block drain, it is under the exhaust near the rear of
the block.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Pat Blank wrote:
>
> Pat Blank <use_email@in.sig> wrote in
> news:Xns951CE800C93Fuseemailinsig@206.141.193.32:
>
> > Can I use one of those backflushing kits with my 93 Cherokee 4.0? Will
> > that valve (I think I read it was a valve) that the heater hoses
> > connect to interfere with flushing this way?
> >
> > Thanks.
> >
>
> Here's a link to a picture of the valve.
>
> http://tinyurl.com/38cm2
>
> --
> pat - pat(underscore)blank(at)hotmail(dot)com
> 93 XJ 2DR 2WD 4.0L 171K
>
> "The examined life is no picnic." - Robert Fulghum

 

That valve defaults in the open position with no vacuum applied in my
88.

Don't forget the block drain, it is under the exhaust near the rear of
the block.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Pat Blank wrote:
>
> Pat Blank <use_email@in.sig> wrote in
> news:Xns951CE800C93Fuseemailinsig@206.141.193.32:
>
> > Can I use one of those backflushing kits with my 93 Cherokee 4.0? Will
> > that valve (I think I read it was a valve) that the heater hoses
> > connect to interfere with flushing this way?
> >
> > Thanks.
> >
>
> Here's a link to a picture of the valve.
>
> http://tinyurl.com/38cm2
>
> --
> pat - pat(underscore)blank(at)hotmail(dot)com
> 93 XJ 2DR 2WD 4.0L 171K
>
> "The examined life is no picnic." - Robert Fulghum

 

That valve defaults in the open position with no vacuum applied in my
88.

Don't forget the block drain, it is under the exhaust near the rear of
the block.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Pat Blank wrote:
>
> Pat Blank <use_email@in.sig> wrote in
> news:Xns951CE800C93Fuseemailinsig@206.141.193.32:
>
> > Can I use one of those backflushing kits with my 93 Cherokee 4.0? Will
> > that valve (I think I read it was a valve) that the heater hoses
> > connect to interfere with flushing this way?
> >
> > Thanks.
> >
>
> Here's a link to a picture of the valve.
>
> http://tinyurl.com/38cm2
>
> --
> pat - pat(underscore)blank(at)hotmail(dot)com
> 93 XJ 2DR 2WD 4.0L 171K
>
> "The examined life is no picnic." - Robert Fulghum

 

"DougW" <post.replies@invalid.address> wrote in
news:wmUFc.35623$Lh.19214@okepread01:

> Interesting. A heater core bypass valve. Haven't seen those
> in a looooong time. All it does is bypass the flow to your
> heater core when the heat isn't on.
>
> It would keep the flush from going throug your heater core
> unless you had the heat turned on. If all your after is the
> radiator and block it won't bother anything. IF you want to
> flush the heater core too, just turn the heat on.
>

Thanks Doug. I want to flush everything.

--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K

"The examined life is no picnic." - Robert Fulghum

 

"DougW" <post.replies@invalid.address> wrote in
news:wmUFc.35623$Lh.19214@okepread01:

> Interesting. A heater core bypass valve. Haven't seen those
> in a looooong time. All it does is bypass the flow to your
> heater core when the heat isn't on.
>
> It would keep the flush from going throug your heater core
> unless you had the heat turned on. If all your after is the
> radiator and block it won't bother anything. IF you want to
> flush the heater core too, just turn the heat on.
>

Thanks Doug. I want to flush everything.

--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K

"The examined life is no picnic." - Robert Fulghum

 

"DougW" <post.replies@invalid.address> wrote in
news:wmUFc.35623$Lh.19214@okepread01:

> Interesting. A heater core bypass valve. Haven't seen those
> in a looooong time. All it does is bypass the flow to your
> heater core when the heat isn't on.
>
> It would keep the flush from going throug your heater core
> unless you had the heat turned on. If all your after is the
> radiator and block it won't bother anything. IF you want to
> flush the heater core too, just turn the heat on.
>

Thanks Doug. I want to flush everything.

--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K

"The examined life is no picnic." - Robert Fulghum

 

"DougW" <post.replies@invalid.address> wrote in
news:wmUFc.35623$Lh.19214@okepread01:

> Interesting. A heater core bypass valve. Haven't seen those
> in a looooong time. All it does is bypass the flow to your
> heater core when the heat isn't on.
>
> It would keep the flush from going throug your heater core
> unless you had the heat turned on. If all your after is the
> radiator and block it won't bother anything. IF you want to
> flush the heater core too, just turn the heat on.
>

Thanks Doug. I want to flush everything.

--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K

"The examined life is no picnic." - Robert Fulghum

 

Mike Romain <romainm@sympatico.ca> wrote in
news:40E8195C.6EE027E8@sympatico.ca:

> That valve defaults in the open position with no vacuum applied in my
> 88.
>
> Don't forget the block drain, it is under the exhaust near the rear of
> the block.
>

Do I have to open that drain even with using the backflush kit?


--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K

"The examined life is no picnic." - Robert Fulghum

 

Mike Romain <romainm@sympatico.ca> wrote in
news:40E8195C.6EE027E8@sympatico.ca:

> That valve defaults in the open position with no vacuum applied in my
> 88.
>
> Don't forget the block drain, it is under the exhaust near the rear of
> the block.
>

Do I have to open that drain even with using the backflush kit?


--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K

"The examined life is no picnic." - Robert Fulghum

 

Mike Romain <romainm@sympatico.ca> wrote in
news:40E8195C.6EE027E8@sympatico.ca:

> That valve defaults in the open position with no vacuum applied in my
> 88.
>
> Don't forget the block drain, it is under the exhaust near the rear of
> the block.
>

Do I have to open that drain even with using the backflush kit?


--
pat - pat(underscore)blank(at)hotmail(dot)com
93 XJ 2DR 2WD 4.0L 171K

"The examined life is no picnic." - Robert Fulghum