7.3 Diesel smokes at idle - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old November 12th, 2013, 06:43 PM   #1
chevyk10
FORD / GM
 
chevyk10's Avatar
 
Join Date: 11-21-09
Location: Howell
Posts: 891
iTrader: (0)
Mentioned: 1 Post(s)
Default 7.3 Diesel smokes at idle

Looking at buying an 03 F-250 Crew cab lariat 4x4 7.3 PSD fairly clean with 337k miles for a pretty decent deal. At cold start it smoked white smoke for a while, then was still puffing a good amount of white / blueish smoke once warm. I drove it for a good half hour, parked it and let it sit for about 5 mins, then it started puffing a good amount of white / blue tinted smoke again and progressively got worse. Got it back on the road and it'll clear right up with no smoke at all under load. At idle it roughs a little rough like its got a miss, but while driving it runs fine. Any ideas what this could be??? $5,200 for this truck seems like a good deal to me even with the miles and work it needs. The body is very solid and its a very nice looking truck. Has brand new tires 6 months ago and all new front end parts. Seems like a decent deal... but maybe someone here could help me out on this.

Last edited by chevyk10; November 12th, 2013 at 08:02 PM.
chevyk10 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old November 12th, 2013, 06:56 PM   #2
Bones
skillicous
 
Bones's Avatar
 
Join Date: 11-06-05
Location: Dearborn Heights, MI
Posts: 11,554
iTrader: (37)
Mentioned: 3 Post(s)
Send a message via AIM to Bones
Default

if you are lucky it is only injector O rings. But it might be the injectors themselves...

unless it smelled like burning oil...
__________________
Inviscid Motorsports

Special Thanks and Recommendations to;
Motorcity Machines
Ironman Offroad
Branik Motorsports
Maxxis Tires

Raceline Wheels
PAC Racing Springs
Joint Clutch and Gear
Bones is offline   Reply With Quote
Old November 12th, 2013, 07:00 PM   #3
chevyk10
FORD / GM
 
chevyk10's Avatar
 
Join Date: 11-21-09
Location: Howell
Posts: 891
iTrader: (0)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by Bones View Post
if you are lucky it is only injector O rings. But it might be the injectors themselves...

unless it smelled like burning oil...
What would it be if it was burning oil? piston rings? Someone said could be the turbo? Also heard compression issues could cause this...
It was more white smoke than anything and got really bad after sitting at idle for a while. I just don't understand why it still runs fine and clears right up while driving... I had a duramax do exactly what this truck is doing, then one day BAM is blew a cylinder and left the entire city smoked out while driving it to the scrap yard.
chevyk10 is offline   Reply With Quote
Old November 12th, 2013, 07:06 PM   #4
Bones
skillicous
 
Bones's Avatar
 
Join Date: 11-06-05
Location: Dearborn Heights, MI
Posts: 11,554
iTrader: (37)
Mentioned: 3 Post(s)
Send a message via AIM to Bones
Default

Quote:
Originally Posted by chevyk10 View Post
What would it be if it was burning oil? piston rings? Someone said could be the turbo? Also heard compression issues could cause this...
It was more white smoke than anything and got really bad after sitting at idle for a while. I just don't understand why it still runs fine and clears right up while driving... I had a duramax do exactly what this truck is doing, then one day BAM is blew a cylinder and left the entire city smoked out while driving it to the scrap yard.
is it making proper boost and power? White smoke can be a host of things including unburnt diesel (if an injector was leaking).

Would the guy care if you took it somewhere and got a buzz test and cylinder contribution test?
__________________
Inviscid Motorsports

Special Thanks and Recommendations to;
Motorcity Machines
Ironman Offroad
Branik Motorsports
Maxxis Tires

Raceline Wheels
PAC Racing Springs
Joint Clutch and Gear
Bones is offline   Reply With Quote
Old November 12th, 2013, 07:11 PM   #5
chevyk10
FORD / GM
 
chevyk10's Avatar
 
Join Date: 11-21-09
Location: Howell
Posts: 891
iTrader: (0)
Mentioned: 1 Post(s)
Default

Quote:
Originally Posted by Bones View Post
is it making proper boost and power? White smoke can be a host of things including unburnt diesel (if an injector was leaking).

Would the guy care if you took it somewhere and got a buzz test and cylinder contribution test?

Appears to make plenty of power. And the guy is a "mechanic" at an oil change shop and says he doesn't know much about these diesels and just selling them for a friend (already sold 3 others). I don't know if it is the injectors or not but I told him it needed all 8 new injectors to talk him down on the price. He didn't seem to know much about diesels, but I told him they cost $285 a piece and the IP would have to be replaced too ($700). Of course really I have no idea whats going on with it as I'm kinda new to diesels too. I have some experience with the 7.3 though and they are very tough long lasting engines if maintained.
chevyk10 is offline   Reply With Quote
Old November 13th, 2013, 07:29 AM   #6
frdboy
Wishin' I waz fishin'
 
frdboy's Avatar
 
Join Date: 03-29-06
Location: Grand Haven, MI
Posts: 11,276
iTrader: (25)
Mentioned: 12 Post(s)
Default

Like Bones said......white smoke is unburnt fuel, could be injector issues or low compression. I would pay a shop that knows diesels to do a compression test and look at the turbo.
__________________
Cheap Thrills Off Road

2003 F-250 4X4 7.3 PSD Crew Cab

1971 Bronco
frdboy is offline   Reply With Quote
Old November 14th, 2013, 12:11 PM   #7
NewXj
Senior Member
 
Join Date: 07-01-12
Location: Hillsdale mi
Posts: 126
iTrader: (-1)
Mentioned: 0 Post(s)
Default

Mine had light blue to white smoke at all times..hot cold idle or on load. Turned timing advance( passenger side) .06 .....no more smoke
NewXj is offline   Reply With Quote
Old November 14th, 2013, 05:11 PM   #8
NewXj
Senior Member
 
Join Date: 07-01-12
Location: Hillsdale mi
Posts: 126
iTrader: (-1)
Mentioned: 0 Post(s)
Default

If u need the funky wrench to loosen pump u can borrow mine or make one .
NewXj is offline   Reply With Quote
Old November 14th, 2013, 08:36 PM   #9
MilwaukeeF350
Dan
 
Join Date: 05-31-09
Location: Alpena/ Trenton
Posts: 886
iTrader: (7)
Mentioned: 0 Post(s)
Default

7.3L PSD DOESN'T HAVE injector pump. It use oil to fire injectors.

With the amount of miles I hope you check blow-by by remove oil cap.


Had one that lost #8 cylinder it was smoke like you describe. Were it idle smooth or had vibration that shake little?
MilwaukeeF350 is offline   Reply With Quote
Old November 15th, 2013, 03:35 PM   #10
snocross2xtremes
Senior Member
 
snocross2xtremes's Avatar
 
Join Date: 11-27-05
Location: brighton or Fenton
Posts: 6,540
iTrader: (69)
Mentioned: 3 Post(s)
Send a message via AIM to snocross2xtremes
Default

To many miles for me. Heck I could only get 8500 out my 01 with 180k on it
snocross2xtremes is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 04:01 AM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.17529 seconds with 50 queries