Well I have an issue with my pick up it stumbles hard at idle when it is cold outside and the grid is cycling. This started earlier this fall. Fuel pressure is good the entire time no codes are showing up at all. It will stumble hard then go right back to normal idle, however if you start driving it will not do it again. I have been doing some research and I believe it is the CSS, however I want some other opinions on the situation.

I have included a video of what it does. Truck was just previously started before I started filming.

 

Cam sensor isn't known to fail without a code. Definatly a pretty big hiccup. You using a good scanner or just key trick?

 

Actually they are know to quit working intermittently with out a code. I am just doing the key trick.

 

No kidding, first time I've heard that. One thing I can say for sure is that things a **** to get at... I was told to do mine while I had VP off and I failed. I did do my crank sensor and have heard those 2 have similar symptoms?

 

Mine went out without any codes. It was really hard to start and would intermittently die. And yeah, it was a hard one to get to. Lucky for me I have little girl hands
But the sensor is only like $40. It's definitely worth a try.

 

If I remember correctly 24v don't have crank sensor they have the cam sensor.

Yeah I think I will give it a shot because like you said they only cost 40 bones.

 

Well I changed it out today. Let me tell you what that is a real chore with these big ole paws I call hands. Geeze it is in a horrible location! Good thing I had an extra set of hands. I will report back if this cured the ole girl.

 

24 v does have a crank position sensor, behind the starter.

 

Well didn't know that Dan, good to know.


So far so good the ole girl didn't stumble this morning. I think I got it figured out.

 

'01 and '02's only have the cam sensor. None on the crank.