Blue smoke occasionally?
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Fleet Mechanic
Joined: Nov 2009
Posts: 1,381
Likes: 193
From: Cambs, England
Blue smoke occasionally?
I noticed a bit of blue smoke today, everything is running fine but, when cruising along at a steady slowish speed, around 1500rpm, a bit of blue smoke will start, it gets steadily worse. If I accelerate it will clear & at higher speeds or driving in traffic (on & off the skinny pedal) there's nothing.
I'm thinking a blocked breather, or pcv?
Any thoughts or suggestions welcome.
I'm thinking a blocked breather, or pcv?
Any thoughts or suggestions welcome.
Got Data?
Joined: Dec 2012
Posts: 4,248
Likes: 1,381
From: Lake Stevens, WA
There's a couple of ideas from the following thread: https://www.ford-trucks.com/forums/1...e-smoke-3.html
@BigAlsPSD had some blue smoke and had low compression on one cylinder. His blowby check of the oil cap upsidedown on the fill tube showed it hopping a bit.
Other suggestions include a leaking turbo seal, putting some oil in the exhaust.
How does a CCT look on your rig? All cylinders contributing fairly equally?
Any codes?
oil in crankcase not overfull?
@BigAlsPSD had some blue smoke and had low compression on one cylinder. His blowby check of the oil cap upsidedown on the fill tube showed it hopping a bit.
Other suggestions include a leaking turbo seal, putting some oil in the exhaust.
How does a CCT look on your rig? All cylinders contributing fairly equally?
Any codes?
oil in crankcase not overfull?
Thread Starter
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Fleet Mechanic
Joined: Nov 2009
Posts: 1,381
Likes: 193
From: Cambs, England
Just done a CCT, no 8 failed which I believe is normal, it was exactly the same last time I checked.
Oil level is low, just finished a 300 mile trip pulling my toy hauler this morning, I didn't see any smoke the whole trip.
Oil level is low, just finished a 300 mile trip pulling my toy hauler this morning, I didn't see any smoke the whole trip.
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Fleet Mechanic
Joined: Nov 2009
Posts: 1,381
Likes: 193
From: Cambs, England
My truck now has 120k KM's, I'm probably gonna pull the turbo & have a look through everything on the intake, been thinking about upgrading the boots so just do it all in one hit!
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Fleet Mechanic
Joined: Nov 2009
Posts: 1,381
Likes: 193
From: Cambs, England
I probably will, I've started another thread about what I'll need to get, I'm in the UK & want to do it all in one hit with minimal down time.
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mjnoakes
1999 - 2003 7.3L Power Stroke Diesel
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Dec 16, 2003 02:36 PM
