after cracked manifold replaced, high (redline) rpm on startup
 

I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
(I-6). Note that this is really probably the 2nd time I try such a
large job (at least I usually just deal with oil changes). This
required the removal of the intake manifold also (because both intake
and exhaust share the same gasket). I made sure I removed everything
carefully. I disconnected 2 electrical connections and about 6 or so
hoses, and of course the fuel line.

I re-tightent the bolts according to the sequence suggested (center
bolts first and then the outer). I tried to turn the jeep on, and the
engine just rev'ed really fast to redline. I immediately turned it off
(the first time probably let it run for 5 seconds). I double and
tripled checked the vacuum houses and all the connections I touched
during the replacement of the exahust manifold. Note that I did not
replace any hoses, except for a connector from the air intake that I
broke while trying to remove it. I still need to check to make sure I
torqued all the bolts to the correct amount. I tried turning it on
about 6-8 more times to see if It would eventually come to a normal
idle, but it never did. I actually did not let it run more than 1-2
seconds since every time I turned it on, it revs so fast, almost as if
I were pressing on the accelator. I did checked the throttle, and its
not stuck.

My question is if a leak in the gasket or a vacuum hose will cause
this problem? Or what other things could I have screwed up while
replacing the exhuast manifold? Any suggestions I can try would be
very helpful.

-Juan

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Sounds as though you have a throttle connection binding or improperly
connected. My guess is the throttle is stuck full tilt.
Scott

On 4 Apr 2007 18:16:38 -0700, juanjlopez@gmail.com wrote:

>I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
>(I-6). Note that this is really probably the 2nd time I try such a
>large job (at least I usually just deal with oil changes). This
>required the removal of the intake manifold also (because both intake
>and exhaust share the same gasket). I made sure I removed everything
>carefully. I disconnected 2 electrical connections and about 6 or so
>hoses, and of course the fuel line.
>
>I re-tightent the bolts according to the sequence suggested (center
>bolts first and then the outer). I tried to turn the jeep on, and the
>engine just rev'ed really fast to redline. I immediately turned it off
>(the first time probably let it run for 5 seconds). I double and
>tripled checked the vacuum houses and all the connections I touched
>during the replacement of the exahust manifold. Note that I did not
>replace any hoses, except for a connector from the air intake that I
>broke while trying to remove it. I still need to check to make sure I
>torqued all the bolts to the correct amount. I tried turning it on
>about 6-8 more times to see if It would eventually come to a normal
>idle, but it never did. I actually did not let it run more than 1-2
>seconds since every time I turned it on, it revs so fast, almost as if
>I were pressing on the accelator. I did checked the throttle, and its
>not stuck.
>
>My question is if a leak in the gasket or a vacuum hose will cause
>this problem? Or what other things could I have screwed up while
>replacing the exhuast manifold? Any suggestions I can try would be
>very helpful.
>
>-Juan

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Sounds as though you have a throttle connection binding or improperly
connected. My guess is the throttle is stuck full tilt.
Scott

On 4 Apr 2007 18:16:38 -0700, juanjlopez@gmail.com wrote:

>I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
>(I-6). Note that this is really probably the 2nd time I try such a
>large job (at least I usually just deal with oil changes). This
>required the removal of the intake manifold also (because both intake
>and exhaust share the same gasket). I made sure I removed everything
>carefully. I disconnected 2 electrical connections and about 6 or so
>hoses, and of course the fuel line.
>
>I re-tightent the bolts according to the sequence suggested (center
>bolts first and then the outer). I tried to turn the jeep on, and the
>engine just rev'ed really fast to redline. I immediately turned it off
>(the first time probably let it run for 5 seconds). I double and
>tripled checked the vacuum houses and all the connections I touched
>during the replacement of the exahust manifold. Note that I did not
>replace any hoses, except for a connector from the air intake that I
>broke while trying to remove it. I still need to check to make sure I
>torqued all the bolts to the correct amount. I tried turning it on
>about 6-8 more times to see if It would eventually come to a normal
>idle, but it never did. I actually did not let it run more than 1-2
>seconds since every time I turned it on, it revs so fast, almost as if
>I were pressing on the accelator. I did checked the throttle, and its
>not stuck.
>
>My question is if a leak in the gasket or a vacuum hose will cause
>this problem? Or what other things could I have screwed up while
>replacing the exhuast manifold? Any suggestions I can try would be
>very helpful.
>
>-Juan

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Sounds as though you have a throttle connection binding or improperly
connected. My guess is the throttle is stuck full tilt.
Scott

On 4 Apr 2007 18:16:38 -0700, juanjlopez@gmail.com wrote:

>I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
>(I-6). Note that this is really probably the 2nd time I try such a
>large job (at least I usually just deal with oil changes). This
>required the removal of the intake manifold also (because both intake
>and exhaust share the same gasket). I made sure I removed everything
>carefully. I disconnected 2 electrical connections and about 6 or so
>hoses, and of course the fuel line.
>
>I re-tightent the bolts according to the sequence suggested (center
>bolts first and then the outer). I tried to turn the jeep on, and the
>engine just rev'ed really fast to redline. I immediately turned it off
>(the first time probably let it run for 5 seconds). I double and
>tripled checked the vacuum houses and all the connections I touched
>during the replacement of the exahust manifold. Note that I did not
>replace any hoses, except for a connector from the air intake that I
>broke while trying to remove it. I still need to check to make sure I
>torqued all the bolts to the correct amount. I tried turning it on
>about 6-8 more times to see if It would eventually come to a normal
>idle, but it never did. I actually did not let it run more than 1-2
>seconds since every time I turned it on, it revs so fast, almost as if
>I were pressing on the accelator. I did checked the throttle, and its
>not stuck.
>
>My question is if a leak in the gasket or a vacuum hose will cause
>this problem? Or what other things could I have screwed up while
>replacing the exhuast manifold? Any suggestions I can try would be
>very helpful.
>
>-Juan

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Left off the return spring?

Earle

"Scott" <scott@vzandt.net> wrote in message
news:hvl813p42s84sq310bigsokpp29ef3juc9@4ax.com...
> Sounds as though you have a throttle connection binding or improperly
> connected. My guess is the throttle is stuck full tilt.
> Scott
>
> On 4 Apr 2007 18:16:38 -0700, juanjlopez@gmail.com wrote:
>
> >I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
> >(I-6). Note that this is really probably the 2nd time I try such a
> >large job (at least I usually just deal with oil changes). This
> >required the removal of the intake manifold also (because both intake
> >and exhaust share the same gasket). I made sure I removed everything
> >carefully. I disconnected 2 electrical connections and about 6 or so
> >hoses, and of course the fuel line.
> >
> >I re-tightent the bolts according to the sequence suggested (center
> >bolts first and then the outer). I tried to turn the jeep on, and the
> >engine just rev'ed really fast to redline. I immediately turned it off
> >(the first time probably let it run for 5 seconds). I double and
> >tripled checked the vacuum houses and all the connections I touched
> >during the replacement of the exahust manifold. Note that I did not
> >replace any hoses, except for a connector from the air intake that I
> >broke while trying to remove it. I still need to check to make sure I
> >torqued all the bolts to the correct amount. I tried turning it on
> >about 6-8 more times to see if It would eventually come to a normal
> >idle, but it never did. I actually did not let it run more than 1-2
> >seconds since every time I turned it on, it revs so fast, almost as if
> >I were pressing on the accelator. I did checked the throttle, and its
> >not stuck.
> >
> >My question is if a leak in the gasket or a vacuum hose will cause
> >this problem? Or what other things could I have screwed up while
> >replacing the exhuast manifold? Any suggestions I can try would be
> >very helpful.
> >
> >-Juan

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Left off the return spring?

Earle

"Scott" <scott@vzandt.net> wrote in message
news:hvl813p42s84sq310bigsokpp29ef3juc9@4ax.com...
> Sounds as though you have a throttle connection binding or improperly
> connected. My guess is the throttle is stuck full tilt.
> Scott
>
> On 4 Apr 2007 18:16:38 -0700, juanjlopez@gmail.com wrote:
>
> >I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
> >(I-6). Note that this is really probably the 2nd time I try such a
> >large job (at least I usually just deal with oil changes). This
> >required the removal of the intake manifold also (because both intake
> >and exhaust share the same gasket). I made sure I removed everything
> >carefully. I disconnected 2 electrical connections and about 6 or so
> >hoses, and of course the fuel line.
> >
> >I re-tightent the bolts according to the sequence suggested (center
> >bolts first and then the outer). I tried to turn the jeep on, and the
> >engine just rev'ed really fast to redline. I immediately turned it off
> >(the first time probably let it run for 5 seconds). I double and
> >tripled checked the vacuum houses and all the connections I touched
> >during the replacement of the exahust manifold. Note that I did not
> >replace any hoses, except for a connector from the air intake that I
> >broke while trying to remove it. I still need to check to make sure I
> >torqued all the bolts to the correct amount. I tried turning it on
> >about 6-8 more times to see if It would eventually come to a normal
> >idle, but it never did. I actually did not let it run more than 1-2
> >seconds since every time I turned it on, it revs so fast, almost as if
> >I were pressing on the accelator. I did checked the throttle, and its
> >not stuck.
> >
> >My question is if a leak in the gasket or a vacuum hose will cause
> >this problem? Or what other things could I have screwed up while
> >replacing the exhuast manifold? Any suggestions I can try would be
> >very helpful.
> >
> >-Juan

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Left off the return spring?

Earle

"Scott" <scott@vzandt.net> wrote in message
news:hvl813p42s84sq310bigsokpp29ef3juc9@4ax.com...
> Sounds as though you have a throttle connection binding or improperly
> connected. My guess is the throttle is stuck full tilt.
> Scott
>
> On 4 Apr 2007 18:16:38 -0700, juanjlopez@gmail.com wrote:
>
> >I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
> >(I-6). Note that this is really probably the 2nd time I try such a
> >large job (at least I usually just deal with oil changes). This
> >required the removal of the intake manifold also (because both intake
> >and exhaust share the same gasket). I made sure I removed everything
> >carefully. I disconnected 2 electrical connections and about 6 or so
> >hoses, and of course the fuel line.
> >
> >I re-tightent the bolts according to the sequence suggested (center
> >bolts first and then the outer). I tried to turn the jeep on, and the
> >engine just rev'ed really fast to redline. I immediately turned it off
> >(the first time probably let it run for 5 seconds). I double and
> >tripled checked the vacuum houses and all the connections I touched
> >during the replacement of the exahust manifold. Note that I did not
> >replace any hoses, except for a connector from the air intake that I
> >broke while trying to remove it. I still need to check to make sure I
> >torqued all the bolts to the correct amount. I tried turning it on
> >about 6-8 more times to see if It would eventually come to a normal
> >idle, but it never did. I actually did not let it run more than 1-2
> >seconds since every time I turned it on, it revs so fast, almost as if
> >I were pressing on the accelator. I did checked the throttle, and its
> >not stuck.
> >
> >My question is if a leak in the gasket or a vacuum hose will cause
> >this problem? Or what other things could I have screwed up while
> >replacing the exhuast manifold? Any suggestions I can try would be
> >very helpful.
> >
> >-Juan

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Loosen the manifold bolts and wiggle the intake around until they seat.
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/


<juanjlopez@gmail.com> wrote in message
news:1175735798.375691.81030@n59g2000hsh.googlegro ups.com...
> I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
> (I-6). Note that this is really probably the 2nd time I try such a
> large job (at least I usually just deal with oil changes). This
> required the removal of the intake manifold also (because both intake
> and exhaust share the same gasket). I made sure I removed everything
> carefully. I disconnected 2 electrical connections and about 6 or so
> hoses, and of course the fuel line.
>
> I re-tightent the bolts according to the sequence suggested (center
> bolts first and then the outer). I tried to turn the jeep on, and the
> engine just rev'ed really fast to redline. I immediately turned it off
> (the first time probably let it run for 5 seconds). I double and
> tripled checked the vacuum houses and all the connections I touched
> during the replacement of the exahust manifold. Note that I did not
> replace any hoses, except for a connector from the air intake that I
> broke while trying to remove it. I still need to check to make sure I
> torqued all the bolts to the correct amount. I tried turning it on
> about 6-8 more times to see if It would eventually come to a normal
> idle, but it never did. I actually did not let it run more than 1-2
> seconds since every time I turned it on, it revs so fast, almost as if
> I were pressing on the accelator. I did checked the throttle, and its
> not stuck.
>
> My question is if a leak in the gasket or a vacuum hose will cause
> this problem? Or what other things could I have screwed up while
> replacing the exhuast manifold? Any suggestions I can try would be
> very helpful.
>
> -Juan
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Loosen the manifold bolts and wiggle the intake around until they seat.
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/


<juanjlopez@gmail.com> wrote in message
news:1175735798.375691.81030@n59g2000hsh.googlegro ups.com...
> I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
> (I-6). Note that this is really probably the 2nd time I try such a
> large job (at least I usually just deal with oil changes). This
> required the removal of the intake manifold also (because both intake
> and exhaust share the same gasket). I made sure I removed everything
> carefully. I disconnected 2 electrical connections and about 6 or so
> hoses, and of course the fuel line.
>
> I re-tightent the bolts according to the sequence suggested (center
> bolts first and then the outer). I tried to turn the jeep on, and the
> engine just rev'ed really fast to redline. I immediately turned it off
> (the first time probably let it run for 5 seconds). I double and
> tripled checked the vacuum houses and all the connections I touched
> during the replacement of the exahust manifold. Note that I did not
> replace any hoses, except for a connector from the air intake that I
> broke while trying to remove it. I still need to check to make sure I
> torqued all the bolts to the correct amount. I tried turning it on
> about 6-8 more times to see if It would eventually come to a normal
> idle, but it never did. I actually did not let it run more than 1-2
> seconds since every time I turned it on, it revs so fast, almost as if
> I were pressing on the accelator. I did checked the throttle, and its
> not stuck.
>
> My question is if a leak in the gasket or a vacuum hose will cause
> this problem? Or what other things could I have screwed up while
> replacing the exhuast manifold? Any suggestions I can try would be
> very helpful.
>
> -Juan
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: after cracked manifold replaced, high (redline) rpm on startup
 

Loosen the manifold bolts and wiggle the intake around until they seat.
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/


<juanjlopez@gmail.com> wrote in message
news:1175735798.375691.81030@n59g2000hsh.googlegro ups.com...
> I replaced my cracked exhaust manifold on my 99 Jeep Wrangler 4.0L
> (I-6). Note that this is really probably the 2nd time I try such a
> large job (at least I usually just deal with oil changes). This
> required the removal of the intake manifold also (because both intake
> and exhaust share the same gasket). I made sure I removed everything
> carefully. I disconnected 2 electrical connections and about 6 or so
> hoses, and of course the fuel line.
>
> I re-tightent the bolts according to the sequence suggested (center
> bolts first and then the outer). I tried to turn the jeep on, and the
> engine just rev'ed really fast to redline. I immediately turned it off
> (the first time probably let it run for 5 seconds). I double and
> tripled checked the vacuum houses and all the connections I touched
> during the replacement of the exahust manifold. Note that I did not
> replace any hoses, except for a connector from the air intake that I
> broke while trying to remove it. I still need to check to make sure I
> torqued all the bolts to the correct amount. I tried turning it on
> about 6-8 more times to see if It would eventually come to a normal
> idle, but it never did. I actually did not let it run more than 1-2
> seconds since every time I turned it on, it revs so fast, almost as if
> I were pressing on the accelator. I did checked the throttle, and its
> not stuck.
>
> My question is if a leak in the gasket or a vacuum hose will cause
> this problem? Or what other things could I have screwed up while
> replacing the exhuast manifold? Any suggestions I can try would be
> very helpful.
>
> -Juan
>



--
Posted via a free Usenet account from http://www.teranews.com