Help from any injector gurus...

Reply Subscribe

Thread Tools

Search this Thread

Nov 23, 2012 | 06:46 PM

lalh20

Thread Starter

Freshman User

Joined: Oct 2011

Posts: 41

Likes: 0

Help from any injector gurus...

some may remember a post of mine a while back. I upgraded to single shot injectors early this summer. now my cold starts are great but I get strong white smoke for the first five or so seconds after starts. I'm changing out my up pipes this week which would mean easy access to injectors. I have one extra injector I can use if I can isolate one causing the smoke.

my two questions...
what's the chance it is in fact an injector causing the problem? buzz test and cylinder contribution test pass.
2nd question is how do I know which one to try changing. its such a minor issue I doubt I'll be able to see the diff based on oil spouts.

Nov 23, 2012 | 06:52 PM

BigAlsPSD

Post Fiend

Joined: May 2009

Posts: 5,470

Likes: 3

From: Pea Ridge, AR

With singles you will likely get a haze at idle.

Have you looked into your GPR and GP's to make sure they are working properly?

Nov 23, 2012 | 07:14 PM

JT250

Cargo Master

Joined: Jan 2009

Posts: 2,800

Likes: 31

From: OKC, OK

I think you have heard it a million times already, but make sure ALL the glow plugs are working.

Nov 23, 2012 | 07:31 PM

landmobile

Senior User

Joined: Mar 2012

Posts: 492

Likes: 0

From: Jenkintown, PA

^^^^ Ditto on the glow plugs. The unburned fuel from even one or two cylinders will blow white smoke on startup, especially as the weather is getting colder.

Nov 23, 2012 | 07:54 PM

fordpride

Post Fiend

Joined: Dec 2009

Posts: 15,505

Likes: 18

From: Livoina,La

Are hitting the key as soon as the wait to start light goes out ? If so wait another 15 sec or so then hit the key. The GP's stay on longer then the light. GP's can stay on up to two mins.

Nov 23, 2012 | 07:58 PM

SkySkiJason

Hotshot

Joined: Jul 2008

Posts: 12,782

Likes: 2,142

From: N.GA Mountains

A puff of smoke at start-up is not abnormal - especially on a higher-mileage engine. Does smoke smell like oil or diesel?

Some tunes have more smoke than others at start-up and cold-run.

Any way you can post a video?

Nov 23, 2012 | 08:14 PM

lalh20

Thread Starter

Freshman User

Joined: Oct 2011

Posts: 41

Likes: 0

I will maybe get a video tomorrow. I have tested and all gps are great. I have ohmed them and also have gpcm so it would throw a code anyways. I do wait past wts light by 5 to ten but it's not that cold here. It does this on 40 degree nights. puff is more than a puff... It whites the right side of the garage on the wy out. Smell is diesel.

Shot in the dark... Could fuel bowl heater or cps be at fault.? I'm looking for any possible easy solutions.

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Joe Kucinski

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Brett Foote

Top 10 Ford Truck Tragedies

Joe Kucinski

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

Brett Foote

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Michael S. Palmer

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Verdad Gallardo

10 Best Ford Truck Engines We Miss the Most!

Joe Kucinski

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Brett Foote

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Michael S. Palmer

10 Most Surprising 2026 Ford Truck Features!

Joe Kucinski

Nov 23, 2012 | 09:33 PM

SkySkiJason

Hotshot

Joined: Jul 2008

Posts: 12,782

Likes: 2,142

From: N.GA Mountains

Quote:

Originally Posted by fordpride

What tune are you starting in? If one of the higher tuned the try starting in the stock tune

What I meant was some tuners have more smoke than others. I can start my trucks in any tune and they run EXACTLY the same...

Some tooners recommend starting in lower HP settings and switching after warm-up.

BIG RED FLAG my friends!!

Ok, I'm done for tonite.

That's me on the right!

Nov 23, 2012 | 09:34 PM

#10

JT250

Cargo Master

Joined: Jan 2009

Posts: 2,800

Likes: 31

From: OKC, OK

Fuel heater....no....cps probably not.

Nov 24, 2012 | 07:57 AM

#11

lalh20

Thread Starter

Freshman User

Joined: Oct 2011

Posts: 41

Likes: 0

That's what I thought... Since I had no smoke prior to the injectors, and I feel it is probably an injector but apparently there is no way of knowing which one if it's just barely not perfect.