Car shaking after changing spark plugs

Hi,

Today I replaced the six spark plugs of my 94 Ford Taurus.
However, when I stop for red lights, the car shakes every one or two
seconds.
Does anybody know the reason?
Could it be that I didn't adjust the gap?

Thanks,
Wei

One wire is not plugged in properly or the wires are in the wrong order or
you cracked a plug during the installation.
"Wei Hu" > wrote in message
oups.com...
> Hi,
>
> Today I replaced the six spark plugs of my 94 Ford Taurus.
> However, when I stop for red lights, the car shakes every one or two
> seconds.
> Does anybody know the reason?
> Could it be that I didn't adjust the gap?
>
> Thanks,
> Wei
>



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Wei Hu wrote:
>
> Hi,
>
> Today I replaced the six spark plugs of my 94 Ford Taurus.
> However, when I stop for red lights, the car shakes every one or two
> seconds.
> Does anybody know the reason?
> Could it be that I didn't adjust the gap?
>
> Thanks,
> Wei

Add to what Shep said:
Possibly destroyed a wire or several while changing plugs.

«» wrote:
> Wei Hu wrote:
> >
> > Hi,
> >
> > Today I replaced the six spark plugs of my 94 Ford Taurus.
> > However, when I stop for red lights, the car shakes every one or two
> > seconds.
> > Does anybody know the reason?
> > Could it be that I didn't adjust the gap?
> >
> > Thanks,
> > Wei
>
> Add to what Shep said:
> Possibly destroyed a wire or several while changing plugs.
I replaced my wire because I came into a new set for free, an that
problem of yours I had for years went away.

On 26 Aug 2006 16:41:00 -0700, "Wei Hu" > wrote:

>Hi,
>
>Today I replaced the six spark plugs of my 94 Ford Taurus.
>However, when I stop for red lights, the car shakes every one or two
>seconds.
>Does anybody know the reason?
>Could it be that I didn't adjust the gap?

Your car will miss at idle if the spark plug gaps are too close.
Also, if you put in Bosch take them out.

Don
www.donsautomotive.com


>
>Thanks,
>Wei

Why no Bosch?


"Don" > wrote in message
...
> On 26 Aug 2006 16:41:00 -0700, "Wei Hu" > wrote:
>
> >Hi,
> >
> >Today I replaced the six spark plugs of my 94 Ford Taurus.
> >However, when I stop for red lights, the car shakes every one or two
> >seconds.
> >Does anybody know the reason?
> >Could it be that I didn't adjust the gap?
>
> Your car will miss at idle if the spark plug gaps are too close.
> Also, if you put in Bosch take them out.
>
> Don
> www.donsautomotive.com
>
>
> >
> >Thanks,
> >Wei
>

Wei Hu Wrote:
> Hi,
>
> Today I replaced the six spark plugs of my 94 Ford Taurus.
> However, when I stop for red lights, the car shakes every one or two
> seconds.
> Does anybody know the reason?
> Could it be that I didn't adjust the gap?
>
> Thanks,
> Wei

I'll cocurr with the others...cracked insulator or damaged plug wire
most likely, gap not so much so, but possible...if they were platinum
plugs with the preset gap, they are rarely ever wrong...the electrode
is tough as hell and doesn't bend easily..

I agree also, Bosch Plats are crap, I'd throw them away if that's what
you got, get Motorcraft or Autolite for it...


--
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jeffcoslacker > wrote in article
>...
>
>
> I'll cocurr with the others...cracked insulator or damaged plug wire
> most likely, gap not so much so, but possible...if they were platinum
> plugs with the preset gap, they are rarely ever wrong...the electrode
> is tough as hell and doesn't bend easily..
>
> I agree also, Bosch Plats are crap, I'd throw them away if that's what
> you got, get Motorcraft or Autolite for it...
>
>


I, for one, would be interested in hearing what, exactly, is "crap" about
the Bosch plugs.

Resistors? Metallurgy? Ceramic composition?

Where do they fail in your testing?

What type of testing did you subject them to?

What is it, exactly, that makes them inferior to other spark plugs?

Plat Bosch's in a 97 Lumina 3.1, replaced OE plats at 70k, at 22k Bosch's
began misfire under load, pulled em out the center electrode had eroded
below the insulator, put oe's in another 70k no problem, field test seemed
to indicate they wouldn't work in this car.
"*" > wrote in message
news:01c6c9dc$a5ce8100$da96c3d8@race...
>
>
> jeffcoslacker > wrote in article
> >...
>>
>>
>> I'll cocurr with the others...cracked insulator or damaged plug wire
>> most likely, gap not so much so, but possible...if they were platinum
>> plugs with the preset gap, they are rarely ever wrong...the electrode
>> is tough as hell and doesn't bend easily..
>>
>> I agree also, Bosch Plats are crap, I'd throw them away if that's what
>> you got, get Motorcraft or Autolite for it...
>>
>>
>
>
> I, for one, would be interested in hearing what, exactly, is "crap" about
> the Bosch plugs.
>
> Resistors? Metallurgy? Ceramic composition?
>
> Where do they fail in your testing?
>
> What type of testing did you subject them to?
>
> What is it, exactly, that makes them inferior to other spark plugs?
>
>



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Shep > wrote in article
>...
> Plat Bosch's in a 97 Lumina 3.1, replaced OE plats at 70k, at 22k Bosch's

> began misfire under load, pulled em out the center electrode had eroded
> below the insulator, put oe's in another 70k no problem, field test
seemed
> to indicate they wouldn't work in this car.


So, you're absolutely sure that it was the plug - not the ignition system's
inability to deal with the resistance of the Bosch Platinum plug???