Re: clanking sound that driving me nuts.
 

Hi Billy Ray!

I did not but I know if I did, the same result would happen: NOTHING.

They said they checked everything and as far as trans is concerned,
they are in the clear, goodbye, have a nice day. Maybe the guy that
changed your radiator left a wrench in there. (he was joking?? )


I drove there and everything was fine. I would have to do an hour plus
drive on highway, then get stuck in stop and go traffic.

Maybe the coolant line to the tranny (I'm getting the lingo down now!)
is blocked? I might do a flush this weekend. comments?

-John

billy ray wrote:
> Did you go with them on the test drive?
>
> <lilgrasshopper@gmail.com> wrote in message
> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
> > went to cottman. they said everything related to trans is working fine.
> > they could not replicate the problem, have a nice day.
> >
> >
> > Lon wrote:
> >> If you pretty much know cars, the factory service manual is the best, in
> >> that it explains how each of the systems works, plus how to perform
> >> simple and complex checks. You can usually guesstimate the pita factor
> >> from the FSM.
> >>
> >>
> >>
> >> lilgrasshopper@gmail.com proclaimed:
> >> > Hi guys:
> >> >
> >> > What's a good book for cars? I know when it gets complicated like this,
> >> > take it to the shop, turn around and bend down but I'd like to read and
> >> > see how things work. (I work as a network Admin at my corp. inc).
> >> > Shilman? Shulman?
> >> >
> >> > Thanks,
> >> >
> >> > John,
> >> >
> >> > Roosevelt, NJ
> >> >
> >> >
> >> > DougW wrote:
> >> >
> >> >>lilgrasshopper@gmail.com wrote:
> >> >>
> >> >>>Hi all,
> >> >>>
> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
> >> >>
> >> >>>I can drive on the highway all day and nothing bad will happen but
> >> >>>once I get into stop and go traffic, like today, on a hot day, I
> >> >>>would start to hear some clanking, then it would get louder, like
> >> >>>something spinning and hitting something else. If I press on the gas
> >> >>>pedal to go faster, the clanking sound would be faster, more frequent
> >> >>>so I am thinking it has something to do with something spinning while
> >> >>
> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
> >> >>They usually make a bad clank/grind noise when the engine is under load
> >> >>(like pulling a trailer) but eventually will make that noise even when
> >> >>taking off.
> >> >>
> >> >>Get yourself a big flat screwdriver or small pry bar. From under
> >> >>the engine see how far the harmonic balancer will pry forward from the
> >> >>engine and go back into the engine. It shouldn't move more than about
> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's time
> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring on
> >> >>the balancer. If it's going to move it will move easily.
> >> >>
> >> >>--
> >> >>DougW
> >> >
> >> >
> >

Re: clanking sound that driving me nuts.
 

Hi Billy Ray!

I did not but I know if I did, the same result would happen: NOTHING.

They said they checked everything and as far as trans is concerned,
they are in the clear, goodbye, have a nice day. Maybe the guy that
changed your radiator left a wrench in there. (he was joking?? )


I drove there and everything was fine. I would have to do an hour plus
drive on highway, then get stuck in stop and go traffic.

Maybe the coolant line to the tranny (I'm getting the lingo down now!)
is blocked? I might do a flush this weekend. comments?

-John

billy ray wrote:
> Did you go with them on the test drive?
>
> <lilgrasshopper@gmail.com> wrote in message
> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
> > went to cottman. they said everything related to trans is working fine.
> > they could not replicate the problem, have a nice day.
> >
> >
> > Lon wrote:
> >> If you pretty much know cars, the factory service manual is the best, in
> >> that it explains how each of the systems works, plus how to perform
> >> simple and complex checks. You can usually guesstimate the pita factor
> >> from the FSM.
> >>
> >>
> >>
> >> lilgrasshopper@gmail.com proclaimed:
> >> > Hi guys:
> >> >
> >> > What's a good book for cars? I know when it gets complicated like this,
> >> > take it to the shop, turn around and bend down but I'd like to read and
> >> > see how things work. (I work as a network Admin at my corp. inc).
> >> > Shilman? Shulman?
> >> >
> >> > Thanks,
> >> >
> >> > John,
> >> >
> >> > Roosevelt, NJ
> >> >
> >> >
> >> > DougW wrote:
> >> >
> >> >>lilgrasshopper@gmail.com wrote:
> >> >>
> >> >>>Hi all,
> >> >>>
> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
> >> >>
> >> >>>I can drive on the highway all day and nothing bad will happen but
> >> >>>once I get into stop and go traffic, like today, on a hot day, I
> >> >>>would start to hear some clanking, then it would get louder, like
> >> >>>something spinning and hitting something else. If I press on the gas
> >> >>>pedal to go faster, the clanking sound would be faster, more frequent
> >> >>>so I am thinking it has something to do with something spinning while
> >> >>
> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
> >> >>They usually make a bad clank/grind noise when the engine is under load
> >> >>(like pulling a trailer) but eventually will make that noise even when
> >> >>taking off.
> >> >>
> >> >>Get yourself a big flat screwdriver or small pry bar. From under
> >> >>the engine see how far the harmonic balancer will pry forward from the
> >> >>engine and go back into the engine. It shouldn't move more than about
> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's time
> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring on
> >> >>the balancer. If it's going to move it will move easily.
> >> >>
> >> >>--
> >> >>DougW
> >> >
> >> >
> >

Re: clanking sound that driving me nuts.
 

Hi Billy Ray!

I did not but I know if I did, the same result would happen: NOTHING.

They said they checked everything and as far as trans is concerned,
they are in the clear, goodbye, have a nice day. Maybe the guy that
changed your radiator left a wrench in there. (he was joking?? )


I drove there and everything was fine. I would have to do an hour plus
drive on highway, then get stuck in stop and go traffic.

Maybe the coolant line to the tranny (I'm getting the lingo down now!)
is blocked? I might do a flush this weekend. comments?

-John

billy ray wrote:
> Did you go with them on the test drive?
>
> <lilgrasshopper@gmail.com> wrote in message
> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
> > went to cottman. they said everything related to trans is working fine.
> > they could not replicate the problem, have a nice day.
> >
> >
> > Lon wrote:
> >> If you pretty much know cars, the factory service manual is the best, in
> >> that it explains how each of the systems works, plus how to perform
> >> simple and complex checks. You can usually guesstimate the pita factor
> >> from the FSM.
> >>
> >>
> >>
> >> lilgrasshopper@gmail.com proclaimed:
> >> > Hi guys:
> >> >
> >> > What's a good book for cars? I know when it gets complicated like this,
> >> > take it to the shop, turn around and bend down but I'd like to read and
> >> > see how things work. (I work as a network Admin at my corp. inc).
> >> > Shilman? Shulman?
> >> >
> >> > Thanks,
> >> >
> >> > John,
> >> >
> >> > Roosevelt, NJ
> >> >
> >> >
> >> > DougW wrote:
> >> >
> >> >>lilgrasshopper@gmail.com wrote:
> >> >>
> >> >>>Hi all,
> >> >>>
> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
> >> >>
> >> >>>I can drive on the highway all day and nothing bad will happen but
> >> >>>once I get into stop and go traffic, like today, on a hot day, I
> >> >>>would start to hear some clanking, then it would get louder, like
> >> >>>something spinning and hitting something else. If I press on the gas
> >> >>>pedal to go faster, the clanking sound would be faster, more frequent
> >> >>>so I am thinking it has something to do with something spinning while
> >> >>
> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
> >> >>They usually make a bad clank/grind noise when the engine is under load
> >> >>(like pulling a trailer) but eventually will make that noise even when
> >> >>taking off.
> >> >>
> >> >>Get yourself a big flat screwdriver or small pry bar. From under
> >> >>the engine see how far the harmonic balancer will pry forward from the
> >> >>engine and go back into the engine. It shouldn't move more than about
> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's time
> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring on
> >> >>the balancer. If it's going to move it will move easily.
> >> >>
> >> >>--
> >> >>DougW
> >> >
> >> >
> >

Re: clanking sound that driving me nuts.
 

Another thing, my exhaust sounds aweful when I'm driving, there is a
distinct humm, like ummmmmmmmmmmmmmmmmm, and when I started the car,
there's a sound, I'm thinking something is loose, some clamps...maybe
I'll craw under with a flash light tonight.
billy ray wrote:
> Did you go with them on the test drive?
>
> <lilgrasshopper@gmail.com> wrote in message
> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
> > went to cottman. they said everything related to trans is working fine.
> > they could not replicate the problem, have a nice day.
> >
> >
> > Lon wrote:
> >> If you pretty much know cars, the factory service manual is the best, in
> >> that it explains how each of the systems works, plus how to perform
> >> simple and complex checks. You can usually guesstimate the pita factor
> >> from the FSM.
> >>
> >>
> >>
> >> lilgrasshopper@gmail.com proclaimed:
> >> > Hi guys:
> >> >
> >> > What's a good book for cars? I know when it gets complicated like this,
> >> > take it to the shop, turn around and bend down but I'd like to read and
> >> > see how things work. (I work as a network Admin at my corp. inc).
> >> > Shilman? Shulman?
> >> >
> >> > Thanks,
> >> >
> >> > John,
> >> >
> >> > Roosevelt, NJ
> >> >
> >> >
> >> > DougW wrote:
> >> >
> >> >>lilgrasshopper@gmail.com wrote:
> >> >>
> >> >>>Hi all,
> >> >>>
> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
> >> >>
> >> >>>I can drive on the highway all day and nothing bad will happen but
> >> >>>once I get into stop and go traffic, like today, on a hot day, I
> >> >>>would start to hear some clanking, then it would get louder, like
> >> >>>something spinning and hitting something else. If I press on the gas
> >> >>>pedal to go faster, the clanking sound would be faster, more frequent
> >> >>>so I am thinking it has something to do with something spinning while
> >> >>
> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
> >> >>They usually make a bad clank/grind noise when the engine is under load
> >> >>(like pulling a trailer) but eventually will make that noise even when
> >> >>taking off.
> >> >>
> >> >>Get yourself a big flat screwdriver or small pry bar. From under
> >> >>the engine see how far the harmonic balancer will pry forward from the
> >> >>engine and go back into the engine. It shouldn't move more than about
> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's time
> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring on
> >> >>the balancer. If it's going to move it will move easily.
> >> >>
> >> >>--
> >> >>DougW
> >> >
> >> >
> >

Re: clanking sound that driving me nuts.
 

Another thing, my exhaust sounds aweful when I'm driving, there is a
distinct humm, like ummmmmmmmmmmmmmmmmm, and when I started the car,
there's a sound, I'm thinking something is loose, some clamps...maybe
I'll craw under with a flash light tonight.
billy ray wrote:
> Did you go with them on the test drive?
>
> <lilgrasshopper@gmail.com> wrote in message
> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
> > went to cottman. they said everything related to trans is working fine.
> > they could not replicate the problem, have a nice day.
> >
> >
> > Lon wrote:
> >> If you pretty much know cars, the factory service manual is the best, in
> >> that it explains how each of the systems works, plus how to perform
> >> simple and complex checks. You can usually guesstimate the pita factor
> >> from the FSM.
> >>
> >>
> >>
> >> lilgrasshopper@gmail.com proclaimed:
> >> > Hi guys:
> >> >
> >> > What's a good book for cars? I know when it gets complicated like this,
> >> > take it to the shop, turn around and bend down but I'd like to read and
> >> > see how things work. (I work as a network Admin at my corp. inc).
> >> > Shilman? Shulman?
> >> >
> >> > Thanks,
> >> >
> >> > John,
> >> >
> >> > Roosevelt, NJ
> >> >
> >> >
> >> > DougW wrote:
> >> >
> >> >>lilgrasshopper@gmail.com wrote:
> >> >>
> >> >>>Hi all,
> >> >>>
> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
> >> >>
> >> >>>I can drive on the highway all day and nothing bad will happen but
> >> >>>once I get into stop and go traffic, like today, on a hot day, I
> >> >>>would start to hear some clanking, then it would get louder, like
> >> >>>something spinning and hitting something else. If I press on the gas
> >> >>>pedal to go faster, the clanking sound would be faster, more frequent
> >> >>>so I am thinking it has something to do with something spinning while
> >> >>
> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
> >> >>They usually make a bad clank/grind noise when the engine is under load
> >> >>(like pulling a trailer) but eventually will make that noise even when
> >> >>taking off.
> >> >>
> >> >>Get yourself a big flat screwdriver or small pry bar. From under
> >> >>the engine see how far the harmonic balancer will pry forward from the
> >> >>engine and go back into the engine. It shouldn't move more than about
> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's time
> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring on
> >> >>the balancer. If it's going to move it will move easily.
> >> >>
> >> >>--
> >> >>DougW
> >> >
> >> >
> >

Re: clanking sound that driving me nuts.
 

Another thing, my exhaust sounds aweful when I'm driving, there is a
distinct humm, like ummmmmmmmmmmmmmmmmm, and when I started the car,
there's a sound, I'm thinking something is loose, some clamps...maybe
I'll craw under with a flash light tonight.
billy ray wrote:
> Did you go with them on the test drive?
>
> <lilgrasshopper@gmail.com> wrote in message
> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
> > went to cottman. they said everything related to trans is working fine.
> > they could not replicate the problem, have a nice day.
> >
> >
> > Lon wrote:
> >> If you pretty much know cars, the factory service manual is the best, in
> >> that it explains how each of the systems works, plus how to perform
> >> simple and complex checks. You can usually guesstimate the pita factor
> >> from the FSM.
> >>
> >>
> >>
> >> lilgrasshopper@gmail.com proclaimed:
> >> > Hi guys:
> >> >
> >> > What's a good book for cars? I know when it gets complicated like this,
> >> > take it to the shop, turn around and bend down but I'd like to read and
> >> > see how things work. (I work as a network Admin at my corp. inc).
> >> > Shilman? Shulman?
> >> >
> >> > Thanks,
> >> >
> >> > John,
> >> >
> >> > Roosevelt, NJ
> >> >
> >> >
> >> > DougW wrote:
> >> >
> >> >>lilgrasshopper@gmail.com wrote:
> >> >>
> >> >>>Hi all,
> >> >>>
> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
> >> >>
> >> >>>I can drive on the highway all day and nothing bad will happen but
> >> >>>once I get into stop and go traffic, like today, on a hot day, I
> >> >>>would start to hear some clanking, then it would get louder, like
> >> >>>something spinning and hitting something else. If I press on the gas
> >> >>>pedal to go faster, the clanking sound would be faster, more frequent
> >> >>>so I am thinking it has something to do with something spinning while
> >> >>
> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
> >> >>They usually make a bad clank/grind noise when the engine is under load
> >> >>(like pulling a trailer) but eventually will make that noise even when
> >> >>taking off.
> >> >>
> >> >>Get yourself a big flat screwdriver or small pry bar. From under
> >> >>the engine see how far the harmonic balancer will pry forward from the
> >> >>engine and go back into the engine. It shouldn't move more than about
> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's time
> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring on
> >> >>the balancer. If it's going to move it will move easily.
> >> >>
> >> >>--
> >> >>DougW
> >> >
> >> >
> >

Re: clanking sound that driving me nuts.
 

Another thing, my exhaust sounds aweful when I'm driving, there is a
distinct humm, like ummmmmmmmmmmmmmmmmm, and when I started the car,
there's a sound, I'm thinking something is loose, some clamps...maybe
I'll craw under with a flash light tonight.
billy ray wrote:
> Did you go with them on the test drive?
>
> <lilgrasshopper@gmail.com> wrote in message
> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
> > went to cottman. they said everything related to trans is working fine.
> > they could not replicate the problem, have a nice day.
> >
> >
> > Lon wrote:
> >> If you pretty much know cars, the factory service manual is the best, in
> >> that it explains how each of the systems works, plus how to perform
> >> simple and complex checks. You can usually guesstimate the pita factor
> >> from the FSM.
> >>
> >>
> >>
> >> lilgrasshopper@gmail.com proclaimed:
> >> > Hi guys:
> >> >
> >> > What's a good book for cars? I know when it gets complicated like this,
> >> > take it to the shop, turn around and bend down but I'd like to read and
> >> > see how things work. (I work as a network Admin at my corp. inc).
> >> > Shilman? Shulman?
> >> >
> >> > Thanks,
> >> >
> >> > John,
> >> >
> >> > Roosevelt, NJ
> >> >
> >> >
> >> > DougW wrote:
> >> >
> >> >>lilgrasshopper@gmail.com wrote:
> >> >>
> >> >>>Hi all,
> >> >>>
> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
> >> >>
> >> >>>I can drive on the highway all day and nothing bad will happen but
> >> >>>once I get into stop and go traffic, like today, on a hot day, I
> >> >>>would start to hear some clanking, then it would get louder, like
> >> >>>something spinning and hitting something else. If I press on the gas
> >> >>>pedal to go faster, the clanking sound would be faster, more frequent
> >> >>>so I am thinking it has something to do with something spinning while
> >> >>
> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
> >> >>They usually make a bad clank/grind noise when the engine is under load
> >> >>(like pulling a trailer) but eventually will make that noise even when
> >> >>taking off.
> >> >>
> >> >>Get yourself a big flat screwdriver or small pry bar. From under
> >> >>the engine see how far the harmonic balancer will pry forward from the
> >> >>engine and go back into the engine. It shouldn't move more than about
> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's time
> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring on
> >> >>the balancer. If it's going to move it will move easily.
> >> >>
> >> >>--
> >> >>DougW
> >> >
> >> >
> >

Re: clanking sound that driving me nuts.
 

It can be really hard to diagnose a problem if it only happens occasionally
and it never seems to happen when the service manager is doing the test
drive!

We will assume Cottman checked the atf level again yesterday as well as the
fluid's consistency and smell and found no problem such as burnt or foam
there.

Hopefully you mean to drain the fluid in the pan and change the filter not a
'flush'. Most autoboxs now have one-way valves in the system and the
'flushes' promoted by the quickie-lubes attempt to back flush the system
which is either ineffective or will damage the system. And well ..... back
flushing is not recommended by any of the manufacturers.

While you have the pan off you may consider adding a drain plug. It makes
fluid changes as easy as an oil change.

I'm not sure what effect the exhaust might have although I am wondering if
the exhaust problem night be the cause of the 'transmission' noise.

I've had pipe joint failures, pipes rust/rot out, mufflers rust out, and one
that the end seams (crimped) failed and the end flap would flex out at
certain RPMs They all have their own characteristic noises but generally
all get louder under load.

<lilgrasshopper@gmail.com> wrote in message
news:1154006340.007636.113310@b28g2000cwb.googlegr oups.com...
> Hi Billy Ray!
>
> I did not but I know if I did, the same result would happen: NOTHING.
>
> They said they checked everything and as far as trans is concerned,
> they are in the clear, goodbye, have a nice day. Maybe the guy that
> changed your radiator left a wrench in there. (he was joking?? )
>
>
> I drove there and everything was fine. I would have to do an hour plus
> drive on highway, then get stuck in stop and go traffic.
>
> Maybe the coolant line to the tranny (I'm getting the lingo down now!)
> is blocked? I might do a flush this weekend. comments?
>
> -John
>
> billy ray wrote:
>> Did you go with them on the test drive?
>>
>> <lilgrasshopper@gmail.com> wrote in message
>> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
>> > went to cottman. they said everything related to trans is working fine.
>> > they could not replicate the problem, have a nice day.
>> >
>> >
>> > Lon wrote:
>> >> If you pretty much know cars, the factory service manual is the best,
>> >> in
>> >> that it explains how each of the systems works, plus how to perform
>> >> simple and complex checks. You can usually guesstimate the pita
>> >> factor
>> >> from the FSM.
>> >>
>> >>
>> >>
>> >> lilgrasshopper@gmail.com proclaimed:
>> >> > Hi guys:
>> >> >
>> >> > What's a good book for cars? I know when it gets complicated like
>> >> > this,
>> >> > take it to the shop, turn around and bend down but I'd like to read
>> >> > and
>> >> > see how things work. (I work as a network Admin at my corp. inc).
>> >> > Shilman? Shulman?
>> >> >
>> >> > Thanks,
>> >> >
>> >> > John,
>> >> >
>> >> > Roosevelt, NJ
>> >> >
>> >> >
>> >> > DougW wrote:
>> >> >
>> >> >>lilgrasshopper@gmail.com wrote:
>> >> >>
>> >> >>>Hi all,
>> >> >>>
>> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
>> >> >>
>> >> >>>I can drive on the highway all day and nothing bad will happen but
>> >> >>>once I get into stop and go traffic, like today, on a hot day, I
>> >> >>>would start to hear some clanking, then it would get louder, like
>> >> >>>something spinning and hitting something else. If I press on the
>> >> >>>gas
>> >> >>>pedal to go faster, the clanking sound would be faster, more
>> >> >>>frequent
>> >> >>>so I am thinking it has something to do with something spinning
>> >> >>>while
>> >> >>
>> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
>> >> >>They usually make a bad clank/grind noise when the engine is under
>> >> >>load
>> >> >>(like pulling a trailer) but eventually will make that noise even
>> >> >>when
>> >> >>taking off.
>> >> >>
>> >> >>Get yourself a big flat screwdriver or small pry bar. From under
>> >> >>the engine see how far the harmonic balancer will pry forward from
>> >> >>the
>> >> >>engine and go back into the engine. It shouldn't move more than
>> >> >>about
>> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's
>> >> >>time
>> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring
>> >> >>on
>> >> >>the balancer. If it's going to move it will move easily.
>> >> >>
>> >> >>--
>> >> >>DougW
>> >> >
>> >> >
>> >
>

Re: clanking sound that driving me nuts.
 

It can be really hard to diagnose a problem if it only happens occasionally
and it never seems to happen when the service manager is doing the test
drive!

We will assume Cottman checked the atf level again yesterday as well as the
fluid's consistency and smell and found no problem such as burnt or foam
there.

Hopefully you mean to drain the fluid in the pan and change the filter not a
'flush'. Most autoboxs now have one-way valves in the system and the
'flushes' promoted by the quickie-lubes attempt to back flush the system
which is either ineffective or will damage the system. And well ..... back
flushing is not recommended by any of the manufacturers.

While you have the pan off you may consider adding a drain plug. It makes
fluid changes as easy as an oil change.

I'm not sure what effect the exhaust might have although I am wondering if
the exhaust problem night be the cause of the 'transmission' noise.

I've had pipe joint failures, pipes rust/rot out, mufflers rust out, and one
that the end seams (crimped) failed and the end flap would flex out at
certain RPMs They all have their own characteristic noises but generally
all get louder under load.

<lilgrasshopper@gmail.com> wrote in message
news:1154006340.007636.113310@b28g2000cwb.googlegr oups.com...
> Hi Billy Ray!
>
> I did not but I know if I did, the same result would happen: NOTHING.
>
> They said they checked everything and as far as trans is concerned,
> they are in the clear, goodbye, have a nice day. Maybe the guy that
> changed your radiator left a wrench in there. (he was joking?? )
>
>
> I drove there and everything was fine. I would have to do an hour plus
> drive on highway, then get stuck in stop and go traffic.
>
> Maybe the coolant line to the tranny (I'm getting the lingo down now!)
> is blocked? I might do a flush this weekend. comments?
>
> -John
>
> billy ray wrote:
>> Did you go with them on the test drive?
>>
>> <lilgrasshopper@gmail.com> wrote in message
>> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
>> > went to cottman. they said everything related to trans is working fine.
>> > they could not replicate the problem, have a nice day.
>> >
>> >
>> > Lon wrote:
>> >> If you pretty much know cars, the factory service manual is the best,
>> >> in
>> >> that it explains how each of the systems works, plus how to perform
>> >> simple and complex checks. You can usually guesstimate the pita
>> >> factor
>> >> from the FSM.
>> >>
>> >>
>> >>
>> >> lilgrasshopper@gmail.com proclaimed:
>> >> > Hi guys:
>> >> >
>> >> > What's a good book for cars? I know when it gets complicated like
>> >> > this,
>> >> > take it to the shop, turn around and bend down but I'd like to read
>> >> > and
>> >> > see how things work. (I work as a network Admin at my corp. inc).
>> >> > Shilman? Shulman?
>> >> >
>> >> > Thanks,
>> >> >
>> >> > John,
>> >> >
>> >> > Roosevelt, NJ
>> >> >
>> >> >
>> >> > DougW wrote:
>> >> >
>> >> >>lilgrasshopper@gmail.com wrote:
>> >> >>
>> >> >>>Hi all,
>> >> >>>
>> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
>> >> >>
>> >> >>>I can drive on the highway all day and nothing bad will happen but
>> >> >>>once I get into stop and go traffic, like today, on a hot day, I
>> >> >>>would start to hear some clanking, then it would get louder, like
>> >> >>>something spinning and hitting something else. If I press on the
>> >> >>>gas
>> >> >>>pedal to go faster, the clanking sound would be faster, more
>> >> >>>frequent
>> >> >>>so I am thinking it has something to do with something spinning
>> >> >>>while
>> >> >>
>> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
>> >> >>They usually make a bad clank/grind noise when the engine is under
>> >> >>load
>> >> >>(like pulling a trailer) but eventually will make that noise even
>> >> >>when
>> >> >>taking off.
>> >> >>
>> >> >>Get yourself a big flat screwdriver or small pry bar. From under
>> >> >>the engine see how far the harmonic balancer will pry forward from
>> >> >>the
>> >> >>engine and go back into the engine. It shouldn't move more than
>> >> >>about
>> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's
>> >> >>time
>> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring
>> >> >>on
>> >> >>the balancer. If it's going to move it will move easily.
>> >> >>
>> >> >>--
>> >> >>DougW
>> >> >
>> >> >
>> >
>

Re: clanking sound that driving me nuts.
 

It can be really hard to diagnose a problem if it only happens occasionally
and it never seems to happen when the service manager is doing the test
drive!

We will assume Cottman checked the atf level again yesterday as well as the
fluid's consistency and smell and found no problem such as burnt or foam
there.

Hopefully you mean to drain the fluid in the pan and change the filter not a
'flush'. Most autoboxs now have one-way valves in the system and the
'flushes' promoted by the quickie-lubes attempt to back flush the system
which is either ineffective or will damage the system. And well ..... back
flushing is not recommended by any of the manufacturers.

While you have the pan off you may consider adding a drain plug. It makes
fluid changes as easy as an oil change.

I'm not sure what effect the exhaust might have although I am wondering if
the exhaust problem night be the cause of the 'transmission' noise.

I've had pipe joint failures, pipes rust/rot out, mufflers rust out, and one
that the end seams (crimped) failed and the end flap would flex out at
certain RPMs They all have their own characteristic noises but generally
all get louder under load.

<lilgrasshopper@gmail.com> wrote in message
news:1154006340.007636.113310@b28g2000cwb.googlegr oups.com...
> Hi Billy Ray!
>
> I did not but I know if I did, the same result would happen: NOTHING.
>
> They said they checked everything and as far as trans is concerned,
> they are in the clear, goodbye, have a nice day. Maybe the guy that
> changed your radiator left a wrench in there. (he was joking?? )
>
>
> I drove there and everything was fine. I would have to do an hour plus
> drive on highway, then get stuck in stop and go traffic.
>
> Maybe the coolant line to the tranny (I'm getting the lingo down now!)
> is blocked? I might do a flush this weekend. comments?
>
> -John
>
> billy ray wrote:
>> Did you go with them on the test drive?
>>
>> <lilgrasshopper@gmail.com> wrote in message
>> news:1153962515.352420.27840@m79g2000cwm.googlegro ups.com...
>> > went to cottman. they said everything related to trans is working fine.
>> > they could not replicate the problem, have a nice day.
>> >
>> >
>> > Lon wrote:
>> >> If you pretty much know cars, the factory service manual is the best,
>> >> in
>> >> that it explains how each of the systems works, plus how to perform
>> >> simple and complex checks. You can usually guesstimate the pita
>> >> factor
>> >> from the FSM.
>> >>
>> >>
>> >>
>> >> lilgrasshopper@gmail.com proclaimed:
>> >> > Hi guys:
>> >> >
>> >> > What's a good book for cars? I know when it gets complicated like
>> >> > this,
>> >> > take it to the shop, turn around and bend down but I'd like to read
>> >> > and
>> >> > see how things work. (I work as a network Admin at my corp. inc).
>> >> > Shilman? Shulman?
>> >> >
>> >> > Thanks,
>> >> >
>> >> > John,
>> >> >
>> >> > Roosevelt, NJ
>> >> >
>> >> >
>> >> > DougW wrote:
>> >> >
>> >> >>lilgrasshopper@gmail.com wrote:
>> >> >>
>> >> >>>Hi all,
>> >> >>>
>> >> >>>I have a 1995 Jeep Grand Cherokee from hell.
>> >> >>
>> >> >>>I can drive on the highway all day and nothing bad will happen but
>> >> >>>once I get into stop and go traffic, like today, on a hot day, I
>> >> >>>would start to hear some clanking, then it would get louder, like
>> >> >>>something spinning and hitting something else. If I press on the
>> >> >>>gas
>> >> >>>pedal to go faster, the clanking sound would be faster, more
>> >> >>>frequent
>> >> >>>so I am thinking it has something to do with something spinning
>> >> >>>while
>> >> >>
>> >> >>I hope I'm wrong, but that sounds like a bad rear mains bearing.
>> >> >>They usually make a bad clank/grind noise when the engine is under
>> >> >>load
>> >> >>(like pulling a trailer) but eventually will make that noise even
>> >> >>when
>> >> >>taking off.
>> >> >>
>> >> >>Get yourself a big flat screwdriver or small pry bar. From under
>> >> >>the engine see how far the harmonic balancer will pry forward from
>> >> >>the
>> >> >>engine and go back into the engine. It shouldn't move more than
>> >> >>about
>> >> >>1/8" max. If it moves 1/4 like mine did way back when, then it's
>> >> >>time
>> >> >>for a shortblock. Do not pry hard.. and pry against the inner ring
>> >> >>on
>> >> >>the balancer. If it's going to move it will move easily.
>> >> >>
>> >> >>--
>> >> >>DougW
>> >> >
>> >> >
>> >
>