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I have a 1994 Ford 350 with 7.3 IDI, always smokes very

Customer Question
I have a 1994...

I have a 1994 Ford 350 with 7.3 IDI, always smokes very light blue upon start up, usually has a rough idle, but runs good after you get going .... have had glow plugs replaced, no help, had injectors replaced....NO HELP.(well, it does run better, but) still smokes upon start up and usually runs rough at idle.

Mechanic's Assistant: Is the rough idle intermittent or consistent?

Once you start driving at higher speeds is "clears" out and usually runs pretty good until turning it off, and it "sits" and then upon initial start up starts smoking, rough idle, again.

Mechanic's Assistant: Are you fixing your F350 yourself? What have you tried so far?

As I previously stated, had one (professional) mechanic think it was glow plugs, he replaced them....didn't help.....found another (highly recommended) mechanic look at it, felt like it was injectors...replaced with NEW Standyne injectors.....runs "better", more power.....STILL smokes, with rough idle

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Don't guess, thanks

Submitted: 11 months ago.Category: Ford
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Answered in 1 hour by:
9/26/2017
Ford Mechanic: 6Bucs, Ford Senior Master replied 11 months ago
6Bucs
6Bucs, Ford Senior Master
Category: Ford
Satisfied Customers: 1,150
Experience: Ford senior master tech, 18 years experience.
Verified
Hello and thanks for your question. My name is James.Is your IDI a turbo or non turbo? A few of them were turbocharged that year.
Has the injection pump been replaced or timed recently?
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