Injector Question

Reply Subscribe

Thread Tools

Search this Thread

Nov 19, 2013 | 01:20 PM

frosty38506

Thread Starter

Freshman User

Joined: Dec 2007

Posts: 32

Likes: 0

From: Cookeville, TN

Injector Question

Ok, i replaced all of my injectors with remans from swamps, i had an AE injector in the #8 hole, but, i replaced all my sticks with AD's. I installed a FRX and HPX from riff raff, my question; do i need to re-flash my PCM to accommodate for the AD replacing the AE?

Nov 19, 2013 | 01:41 PM

Shake-N-Bake

Post Fiend

Joined: Sep 2003

Posts: 6,096

Likes: 26

From: Mesa AZ

Quote:

Originally Posted by frosty38506

...do i need to re-flash my PCM to accommodate for the AD replacing the AE?

No. You don't need to do or change anything. Your engine will run just fine with it like that.

Nov 19, 2013 | 01:44 PM

Tugly

Hotshot

Joined: Jan 2011

Posts: 18,849

Likes: 179

From: Puget Sound

▲
▲
▲
Yup... what he said.

Nov 19, 2013 | 01:58 PM

frosty38506

Thread Starter

Freshman User

Joined: Dec 2007

Posts: 32

Likes: 0

From: Cookeville, TN

Thanks guys!

Nov 20, 2013 | 06:06 AM

DP-Tuner

PREMIUM SPONSOR

Joined: Mar 2005

Posts: 1,863

Likes: 19

From: Hoschton,GA

Quote:

Originally Posted by frosty38506

Stock remans I'm assuming?

We've had 4 customers including Justin recently replace all their injectors with stock AD's. All had a low rpm or idle knock. The AE long lead was ford's fix for cackle. I would get an AE for #8.

To you question-staying with stock split shot injectors you will be fine with the tunes you have. Only issue you will have is idle knock with an AD in #8.

~Diane

__________________
Jody & Diane Tipton- DP-Tuner®
FTE Legacy Sponsors since 2006
Custom tuning for 7.3l, 6.0l, 6.4l,6.7l, Ecoboost,
Get Tuned! 828-221-0076 ext. 802
Become our Facebook Fan

Nov 20, 2013 | 06:49 AM

Tugly

Hotshot

Joined: Jan 2011

Posts: 18,849

Likes: 179

From: Puget Sound

The FRx should help with idle knock, but a better fix is the Hutch mod (link is in my signature).

Nov 20, 2013 | 07:55 AM

DP-Tuner

PREMIUM SPONSOR

Joined: Mar 2005

Posts: 1,863

Likes: 19

From: Hoschton,GA

Quote:

Originally Posted by Tugly

The FRx should help with idle knock, but a better fix is the Hutch mod (link is in my signature).

Helpful, but it won't eliminate the idle knock.

Jody did every thing back in 2003 on his 2002 truck to try and fix the idle knock after doing the same thing the OP did including your suggestion. He did the same to my old Excursion at first, still had knock.

Truthfully, going to single shots is the best cure for cackle or replace the AD he got for #8 with an AE.

~Diane

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

Top 10 Ford Trucks Coming to Mecum Indy 2026

Brett Foote

5 Best / 5 Worst Ford Truck Wheels of All Time

Joe Kucinski

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Joe Kucinski

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Michael S. Palmer

The Best F-150 Deal of Every Trim Level (XL through Raptor)

Joe Kucinski

Nov 20, 2013 | 09:22 AM

BWST

Got Data?

Joined: Dec 2012

Posts: 4,238

Likes: 1,368

From: Lake Stevens, WA

Now this suprises me. I thought FRx took care of the need for an AE in #8. And the Hutch mod worked to quiet all the injectors including #8 by feeding them air-free fuel.

Single shots as the best cure for cackle sounds like a good plan anyway, as AC's are readily available.

Nov 20, 2013 | 09:48 AM

#10

DP-Tuner

PREMIUM SPONSOR

Joined: Mar 2005

Posts: 1,863

Likes: 19

From: Hoschton,GA

Quote:

Originally Posted by BWST

Didn't help our trucks and several customers trucks. Off chance, maybe?

I am OCD and would rather do things once than try 3 things to accomplish the same task. Yes, I am boring!

Nov 20, 2013 | 01:34 PM

#11

frosty38506

Thread Starter

Freshman User

Joined: Dec 2007

Posts: 32

Likes: 0

From: Cookeville, TN

ok....1st off, yes, stock remans, i went with all AD sticks because when international/navistar built the engine, they used AD's, then ford come up with the AE as a fix for the sound/cackle the #8 makes since it is on a dead end for fuel. the cackle doesn't harm the engine in any way, it's just a noise. Is this right or am i missing something? 2nd... i have a kit for the hutch mod, haven't had time to install yet... After i installed everything, it quieted the truck down ALOT, it was actually kinda scary.... but it is a little louder now with about 500 miles down since the install, it's like i can really hear the solenoids clicking but not the engine running if that makes sense at all.... will the hutch mod help with making it even more quiet?

Nov 20, 2013 | 05:15 PM

#12

Bonanza35

Lead Driver

Joined: Sep 2005

Posts: 9,399

Likes: 188

From: Norco,CA

All this helps, just don't completely make it quite. Do all that and change injectors and it will make a big difference.

Nov 20, 2013 | 06:39 PM

#13

Shake-N-Bake

Post Fiend

Joined: Sep 2003

Posts: 6,096

Likes: 26

From: Mesa AZ

Quote:

Originally Posted by frosty38506

....the cackle doesn't harm the engine in any way, it's just a noise. Is this right or am i missing something? ...

Correct. It's just a different sound and only observable at idle. My '99 has eight AD injectors that were original to the engine. I get the cackle from time to time, it used to freak me out at first but now I have gotten used to it. Almost 320k miles on that truck so far and the engine runs great.

Quote:

Originally Posted by frosty38506

.... will the hutch mod help with making it even more quiet?

Only if there is a problem with the fuel delivery system. The stock system has been known to allow air to mix with the fuel when one or more components aren't working properly. A perfectly working stock system should have little or no air in the fuel. A quick check is to connect a clear tube to the lower test port on the fuel bowl, start the engine and see what the fuel looks like that comes out. If you see bubbles then you have a problem. Don't check at the FPR because that is the high point of the system and designed to purge air and fuel back to the tank.