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Driving to work this morning my 99 350 with a 7.3 and 6 speed quit in a traffic jam this morning got it pushed off the road (heavy truck) my buddy came to the rescue he checked for any codes and there was none he started pulling me with his truck so I put it in gear and dropped the clutch it fired up had no power and smoked (blue smoke) so I held it to the floor and it cleared up and ran fine after that but we went to the dealer and picked up a cps and changed it out I was wondering if you guys think he fixed the problem??
Thanks Dave
truck has 175500 miles it had the new cps I changed it in last winter
I haven't heard of the CPS causing smoke like that before.
Blue or blue/white smoke:
Caused by insufficient fuel or oil consumption. Normal when engine is cold or idling for extended periods.
Excessive smoke could be caused by air in the fuel, contaminated fuel, loose or plugged injectors, worn or leaking injector o-rings, thermostat stuck open, oil consumption, or plugged crankcase depression regulator valve. Also PCM inputs such as MAP or ICP sensors.
Engine oil full? Air & fuel filters clean? Any of the above sound like a possibility?
changed the oil last night and its full changed the fuel filter today my buddy had one on his service truck so he out it on and it still wouldn't start the engine was not cold as the truck was driven about 9 miles this morning before it quit
Is the oil still full? What oil did you use, and how much did you put in? I'm not saying this is oil related, but you changed the oil then this showed up, so it's something to consider.
When is the last time you filled up with fuel? Any possibility of bad fuel? Have you driven it any since the ride home? Any symptoms re-appearing?
If it stalls again, and it's safe to do so, quickly turn the key off and check the fuel level in the fuel filter bowl to make sure your pump isn't cutting out on you.
Good call on the tin nut Ray. Check to make sure that thing's not loose and causing your problems. If you get another no start condition, you can test the ICP by just unplugging it and trying to start. You can test the MAP sensor the same way.
Injection Pressure Regulator. It controls what pressure oil the injectors see to fire. If it opens all the way up, you get no oil pressure to the injectors and the truck dies. It's on the back side of the HPOP reservoir on the drivers side.
Here's a picture I borrowed from Barry. The IPR is about the 2 o'clock position on the fuel filter bowl.
I haven't heard of the CPS causing smoke like that before.
Blue or blue/white smoke:
Caused by insufficient fuel or oil consumption. Normal when engine is cold or idling for extended periods.
Excessive smoke could be caused by air in the fuel, contaminated fuel, loose or plugged injectors, worn or leaking injector o-rings, thermostat stuck open, oil consumption, or plugged crankcase depression regulator valve. Also PCM inputs such as MAP or ICP sensors.
Engine oil full? Air & fuel filters clean? Any of the above sound like a possibility?
Smoke caused by the thermostat being stuck open??!
Smoke caused by the thermostat being stuck open??!
Think light white smoke like when the truck is first started on a cold morning and the engine isn't warmed up yet. The factory dummy temp gauge will help determine if this is it. I don't think that's the case here, but thought I would list it anyway.