i know i have a glow plug issue which gives me white FOG (smoke) on start up.

Here recently she has started dropping idle and it will bounce between 632 and 670. When it does this she starts blowing with white smoke. This all after driving and oil temp around 180.

i am at a loss. Injector going bad? CPS failing (replaced a couple months ago)?

Ideas much appreciated.

Thanks
Dale

 

Subscribing, mine does this at idle as well but without the white smoke and no known GP issues.

Edit: I'm almost sure it's not CPS related, mine is only a few months old as well. Which one do you happen to be using?

 

Try unplugging the ICP sensor and see if it still does it.

 

That's good advice. I'll try that. Note that I changed my ICP sensor a while back with a new Motorcraft unit.

 

Not sure on the cps. The mechanic at work got it from the parts store thwt they get our fleet stuff through.

I will try the icp. It is only a couple months old as well.

 

Sorry OP, I feel like I sorta jacked your thread.

The last "common" item I have yet to replace is the IPR, and we have several new ones in stock at our shop. If I can find time to put one on I'll see if that corrects it for us. It won't cost me anything anyway.

 

I had a new one from ford to and had to exchange it under warranty cause it was bad. New doesn't mean good.

 

That's true. I wasn't aware there were issues with new ICP's like there can sometimes be with CPS's. I just wanted to make it known that I wasn't still using my original sensor.
Looks like there was another thread just created, seems like another member is having a similar issue

 

what is the IPR? I checked the acronym list but can not find it.

 

Injection Pressure Regulator, located on the HPOP.

 

Thank you sir!!!

 

Hey OP, not sure if you're still having this problem... But I was. So I installed a new Motorcraft IPR tonight and it seems to be corrected. Before I was idling at around 660 RPMs, but was experiencing surges up to 700 and then back down to 640 before leveling off at around 660 for a few seconds, then repeat.
Now I'm idling between 650-660 without any surges. I'm monitoring on an Infinity in case you were wondering or didn't know.
If you were considering buying yourself a new IPR, consider holding off until I can confirm tomorrow. I only stopped and paid attention once or twice after I installed it.

I'm gonna post this up in the other thread too.

 

Will do. Thanks for the folow up. How much did the IPR run you?

 

Clay has them for $175 I believe, and Bob at DieselORings has them for $205 or so I think. My family business as a small fleet of 7.3s so we keep 2 on hand. I just used one of those.
It is the most pricey of all the sensor-type parts but plays a big role it seems.
You can rebuild it also if you're willing to go that route, it's much much cheaper but a member in the other thread said he had this same issue and a rebuild didn't work, only a new one. Also the OP over there has rebuilt his already.