Camshaft and Crankshaft Sensors--I'M BACK

My saga is found he

http://groups.google.com/group/rec.a...e=source&hl=en

Here is what has happened since the crankshaft sensor, camshaft
sensor, and power control module was replaced.

Vehicle ran good for a couple of weeks, then would occasionally die at
idle while at stop lights. This would happen perhaps 1 out of 3 days
the car was driven. At highway speeds it would violently jerk--once--
while temporarily lighting the Service Engine light. The jerking was
more consistent.

I took it back to the dealer that installed the power control module.
There were no stored codes. They suggested that I replace the spark
plugs and plug wires and clean the throttle body and fuel system with
chemicals. They had pulled a spark plug and its gap was at .090,
should be .050. They said once the plugs and wires had been replaced
and fuel system cleaned it should take care of it, but if it still
exhibited the symptoms I should take it back to them.

I cleaned the throttle body area with 3M Throttle Plate and Intake
Cleaner. Didn't do a super thorough job since I Ieft the part intact
and sprayed and wiped with a rag inside the throttle body cavity.
However, this seems to have stopped the problem with the vehicle dying
at idle at stop lights.

Now all that remains is the violent jerk and temporary lighting of the
Service Engine light. Curiously, this symptom always occurs at the
same area of my wife's drive to work. In fact, she says it is
predictable and anticipates when it will happen. She's rarely
disappointed.

I don't think it is elapsed time the engine has been running, nor is
it distance traveled. I'm thinking it's related to engine temperature.
But what? I doubt this is spark plugs causing this problem. One jerk
at about the same time after engine startup and momentary flash of
Service Engine Light. Again, when the dealer hooked up the scan tool
there were no stored codes.

So, any ideas? Temperature related problem? Some sensor hiccuping?

Not sure if it was on '97 models, but there was a TSB that dealt with
a problem like this. It involved removing the knock sensor because it
would cause the PCM to reset while driving.


On 23 Mar 2007 16:45:14 -0700, "powrwrap" > wrote:

>My saga is found he
>
>http://groups.google.com/group/rec.a...e=source&hl=en
>
>Here is what has happened since the crankshaft sensor, camshaft
>sensor, and power control module was replaced.
>
>Vehicle ran good for a couple of weeks, then would occasionally die at
>idle while at stop lights. This would happen perhaps 1 out of 3 days
>the car was driven. At highway speeds it would violently jerk--once--
>while temporarily lighting the Service Engine light. The jerking was
>more consistent.
>
>I took it back to the dealer that installed the power control module.
>There were no stored codes. They suggested that I replace the spark
>plugs and plug wires and clean the throttle body and fuel system with
>chemicals. They had pulled a spark plug and its gap was at .090,
>should be .050. They said once the plugs and wires had been replaced
>and fuel system cleaned it should take care of it, but if it still
>exhibited the symptoms I should take it back to them.
>
>I cleaned the throttle body area with 3M Throttle Plate and Intake
>Cleaner. Didn't do a super thorough job since I Ieft the part intact
>and sprayed and wiped with a rag inside the throttle body cavity.
>However, this seems to have stopped the problem with the vehicle dying
>at idle at stop lights.
>
>Now all that remains is the violent jerk and temporary lighting of the
>Service Engine light. Curiously, this symptom always occurs at the
>same area of my wife's drive to work. In fact, she says it is
>predictable and anticipates when it will happen. She's rarely
>disappointed.
>
>I don't think it is elapsed time the engine has been running, nor is
>it distance traveled. I'm thinking it's related to engine temperature.
>But what? I doubt this is spark plugs causing this problem. One jerk
>at about the same time after engine startup and momentary flash of
>Service Engine Light. Again, when the dealer hooked up the scan tool
>there were no stored codes.
>
>So, any ideas? Temperature related problem? Some sensor hiccuping?

> On Mar 23, 11:36*pm, bllsht > wrote:

> Not sure if it was on '97 models, but there was a TSB that dealt with
> a problem like this. It involved removing the knock sensor because it
> would cause the PCM to reset while driving.

Hey thanks! I'll research it...

On Mar 24, 12:23 pm, "powrwrap" > wrote:
> > On Mar 23, 11:36?pm, bllsht > wrote:
> > Not sure if it was on '97 models, but there was a TSB that dealt with
> > a problem like this. It involved removing the knock sensor because it
> > would cause the PCM to reset while driving.
>
> Hey thanks! I'll research it...

Can someone that has access to Chrysler technical service bulletins
please post #19-34-98? I believe it is dated 11/27/1998. I found this
while searching Yahoo Groups. It may contain the solution to a long
running problem. Thanks.

"powrwrap" > wrote in message
ups.com...
> On Mar 24, 12:23 pm, "powrwrap" > wrote:
> > > On Mar 23, 11:36?pm, bllsht > wrote:
> > > Not sure if it was on '97 models, but there was a TSB that dealt with
> > > a problem like this. It involved removing the knock sensor because it
> > > would cause the PCM to reset while driving.
> >
> > Hey thanks! I'll research it...
>
> Can someone that has access to Chrysler technical service bulletins
> please post #19-34-98? I believe it is dated 11/27/1998. I found this
> while searching Yahoo Groups. It may contain the solution to a long
> running problem. Thanks.
>
not a good number

"powrwrap" > wrote in message
ups.com...
> On Mar 24, 12:23 pm, "powrwrap" > wrote:
> > > On Mar 23, 11:36?pm, bllsht > wrote:
> > > Not sure if it was on '97 models, but there was a TSB that dealt with
> > > a problem like this. It involved removing the knock sensor because it
> > > would cause the PCM to reset while driving.
> >
> > Hey thanks! I'll research it...
>
> Can someone that has access to Chrysler technical service bulletins
> please post #19-34-98? I believe it is dated 11/27/1998. I found this
> while searching Yahoo Groups. It may contain the solution to a long
> running problem. Thanks.

18-34-98 is a TSB that requires disconnecting and taping the wire of the
knock sensor for a symptom you are describing BUT this only occurs if the
Module is resetting itself back to zero and all the learn values resets. A
scan tool is required to determine if this is what is happening.

Glenn

"powrwrap" > wrote in message
ups.com...
> On Mar 24, 12:23 pm, "powrwrap" > wrote:
> > > On Mar 23, 11:36?pm, bllsht > wrote:
> > > Not sure if it was on '97 models, but there was a TSB that dealt with
> > > a problem like this. It involved removing the knock sensor because it
> > > would cause the PCM to reset while driving.
> >
> > Hey thanks! I'll research it...
>
> Can someone that has access to Chrysler technical service bulletins
> please post #19-34-98? I believe it is dated 11/27/1998. I found this
> while searching Yahoo Groups. It may contain the solution to a long
> running problem. Thanks.
>

18-34-98 is a TSB that requires disconnecting and taping the wire of the
knock sensor for a symptom you are describing BUT this only occurs if the
Module is resetting itself back to zero and all the learn values resets. A
scan tool is required to determine if this is what is happening.

Glenn

It doesn't take a scan tool to determine if disconnecting the knock
sensor eliminates the symptoms.



On Sat, 24 Mar 2007 20:25:36 -0500, "maxpower"
> wrote:

>
>"powrwrap" > wrote in message
oups.com...
>> On Mar 24, 12:23 pm, "powrwrap" > wrote:
>> > > On Mar 23, 11:36?pm, bllsht > wrote:
>> > > Not sure if it was on '97 models, but there was a TSB that dealt with
>> > > a problem like this. It involved removing the knock sensor because it
>> > > would cause the PCM to reset while driving.
>> >
>> > Hey thanks! I'll research it...
>>
>> Can someone that has access to Chrysler technical service bulletins
>> please post #19-34-98? I believe it is dated 11/27/1998. I found this
>> while searching Yahoo Groups. It may contain the solution to a long
>> running problem. Thanks.
>>
>
>18-34-98 is a TSB that requires disconnecting and taping the wire of the
>knock sensor for a symptom you are describing BUT this only occurs if the
>Module is resetting itself back to zero and all the learn values resets. A
>scan tool is required to determine if this is what is happening.
>
>Glenn
>

"bllsht" > wrote in message
...
> It doesn't take a scan tool to determine if disconnecting the knock
> sensor eliminates the symptoms.
>
>
>
> On Sat, 24 Mar 2007 20:25:36 -0500, "maxpower"
> > wrote:
>
> >
> >"powrwrap" > wrote in message
> oups.com...
> >> On Mar 24, 12:23 pm, "powrwrap" > wrote:
> >> > > On Mar 23, 11:36?pm, bllsht > wrote:
> >> > > Not sure if it was on '97 models, but there was a TSB that dealt
with
> >> > > a problem like this. It involved removing the knock sensor because
it
> >> > > would cause the PCM to reset while driving.
> >> >
> >> > Hey thanks! I'll research it...
> >>
> >> Can someone that has access to Chrysler technical service bulletins
> >> please post #19-34-98? I believe it is dated 11/27/1998. I found this
> >> while searching Yahoo Groups. It may contain the solution to a long
> >> running problem. Thanks.
> >>
> >
> >18-34-98 is a TSB that requires disconnecting and taping the wire of the
> >knock sensor for a symptom you are describing BUT this only occurs if the
> >Module is resetting itself back to zero and all the learn values resets.
A
> >scan tool is required to determine if this is what is happening.
> >
> >Glenn
> >

No it doesn't. But the OP stated that it happens sometimes, a scanner would
have determined that the PCM went into a reset mode and cleared all learned
values

Glenn

find a shop that has a bore scope and have the flex plate checked for cracks/breakage and jambed
into place
i have one if you are near brighton michigan

powrwrap wrote:

> My saga is found he
>
> http://groups.google.com/group/rec.a...e=source&hl=en
>
> Here is what has happened since the crankshaft sensor, camshaft
> sensor, and power control module was replaced.
>
> Vehicle ran good for a couple of weeks, then would occasionally die at
> idle while at stop lights. This would happen perhaps 1 out of 3 days
> the car was driven. At highway speeds it would violently jerk--once--
> while temporarily lighting the Service Engine light. The jerking was
> more consistent.
>
> I took it back to the dealer that installed the power control module.
> There were no stored codes. They suggested that I replace the spark
> plugs and plug wires and clean the throttle body and fuel system with
> chemicals. They had pulled a spark plug and its gap was at .090,
> should be .050. They said once the plugs and wires had been replaced
> and fuel system cleaned it should take care of it, but if it still
> exhibited the symptoms I should take it back to them.
>
> I cleaned the throttle body area with 3M Throttle Plate and Intake
> Cleaner. Didn't do a super thorough job since I Ieft the part intact
> and sprayed and wiped with a rag inside the throttle body cavity.
> However, this seems to have stopped the problem with the vehicle dying
> at idle at stop lights.
>
> Now all that remains is the violent jerk and temporary lighting of the
> Service Engine light. Curiously, this symptom always occurs at the
> same area of my wife's drive to work. In fact, she says it is
> predictable and anticipates when it will happen. She's rarely
> disappointed.
>
> I don't think it is elapsed time the engine has been running, nor is
> it distance traveled. I'm thinking it's related to engine temperature.
> But what? I doubt this is spark plugs causing this problem. One jerk
> at about the same time after engine startup and momentary flash of
> Service Engine Light. Again, when the dealer hooked up the scan tool
> there were no stored codes.
>
> So, any ideas? Temperature related problem? Some sensor hiccuping?