300E misses when hot

Tiger wrote:
> I would say in your case, it is most likely the engine temperature sensor
> that may be the issue as your computer thinks the engine is still cold so
> provided too much fuel. Another possibility is idle control valve is bad...
> I would take it out and clean out the inside of it with carb cleaner until
> it comes out clean. Whack it on table to shake loose anything that might be
> stuck...
>
>
Tiger I just now was able to get time to look into the car. I removed
the idle control valve. With it out of the car, I can blow through it.
It is partially open without power being applied to the terminals. Is
this a problem? With the key in the on position, the valve does indeed
fully open. So it is actuating. The question is, should it normally be
completely closed with no air flow through it possible?
 >> Stay informed about: 300E misses when hot 

I don't recall if close or partially open... but clean it out well with carb
cleaner... lots of gunks get caught in there.
 >> Stay informed about: 300E misses when hot 

Tiger wrote:
> I don't recall if close or partially open... but clean it out well with carb
> cleaner... lots of gunks get caught in there.
>
>
thanks
 >> Stay informed about: 300E misses when hot 

I had the same problem.

It's a sensor that goes to the top of engine, at the very rear of the
engine. I think it's called a flywheel sensor. They go bad and you would
never guess that it's this part that causes the problem.



"jb" <jb3320 DeleteThis @indy.rr.com> wrote in message
news:481a40e5$0$20199$4c368faf@roadrunner.com...
> Tiger wrote:
>> I don't recall if close or partially open... but clean it out well with
>> carb cleaner... lots of gunks get caught in there.
> thanks
 >> Stay informed about: 300E misses when hot 

O.K. the correct name is the Crank position sensor. It's what has gone bad
and causes all sorts of problems. The engine dies when it gets hot and will
not start till it's cool. Replace this part and the car should run fine.


"corker" <corker1957.TakeThisOut@verizon.net> wrote in message
news:ubtSj.8190$zw6.5651@trnddc06...
>I had the same problem.
>
> It's a sensor that goes to the top of engine, at the very rear of the
> engine. I think it's called a flywheel sensor. They go bad and you would
> never guess that it's this part that causes the problem.
>
>
>
> "jb" <jb3320.TakeThisOut@indy.rr.com> wrote in message
> news:481a40e5$0$20199$4c368faf@roadrunner.com...
>> Tiger wrote:
>>> I don't recall if close or partially open... but clean it out well with
>>> carb cleaner... lots of gunks get caught in there.
>> thanks
>
>
 >> Stay informed about: 300E misses when hot 

corker wrote:
> O.K. the correct name is the Crank position sensor. It's what has gone bad
> and causes all sorts of problems. The engine dies when it gets hot and will
> not start till it's cool. Replace this part and the car should run fine.
>
>
> "corker" <corker1957 RemoveThis @verizon.net> wrote in message
> news:ubtSj.8190$zw6.5651@trnddc06...
>> I had the same problem.
>>
>> It's a sensor that goes to the top of engine, at the very rear of the
>> engine. I think it's called a flywheel sensor. They go bad and you would
>> never guess that it's this part that causes the problem.
>>
>>
>>
>> "jb" <jb3320 RemoveThis @indy.rr.com> wrote in message
>> news:481a40e5$0$20199$4c368faf@roadrunner.com...
>>> Tiger wrote:
>>>> I don't recall if close or partially open... but clean it out well with
>>>> carb cleaner... lots of gunks get caught in there.
>>> thanks
>>
>
>
It turns out we think to be worn valve step seals. The plugs were gunked
up. I just replaced them last fall. So I didn't suspect that they were
causing my issue. The cold start enrichment would run ok against the
fouled plugs , however, the leaner, warm engine mixture had trouble
igniting. I may have worn valve guides and I'm not sure what I will do.
Thanks for you help folks.
 >> Stay informed about: 300E misses when hot