New Injectors
Thread Starter
|
New User
Joined: Dec 2008
Posts: 15
Likes: 0
New Injectors
Im told I need new injectors in 2000 dually 7.3, 140K miles, as well harness and injector module. New PCM this year took care of unpredictable stalling for a while.
Are ONLINE injectors reliable? Ive seen inexpensive for $130 and a very scary core return policy, and International dealer sells locally new at $275.
Big difference in price there. Local Ford dealer wants over $5000 for job.
I dont want to pay for HIS next winter vacation, but have some left over for mine. Clarity over this issue is appreciated. Thanks!!
Are ONLINE injectors reliable? Ive seen inexpensive for $130 and a very scary core return policy, and International dealer sells locally new at $275.
Big difference in price there. Local Ford dealer wants over $5000 for job.
I dont want to pay for HIS next winter vacation, but have some left over for mine. Clarity over this issue is appreciated. Thanks!!
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
Welcome to FTE. If you get "online" injectors from one of our site sponsors, you will get quality injectors. New Alliant Power injectors are the way to go if you want to replace with stock. You may think of an injector upgrade, if doing the whole set.
Kinda like Ray said. You need to be sure you really need all this before jumping into it. That sounds like too many things to be wrong at once.
Kinda like Ray said. You need to be sure you really need all this before jumping into it. That sounds like too many things to be wrong at once.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Welcome to FTE. Before I dropped money on 8 new injectors, 2 new harnesses, and a new IDM, I'd find someone who can tell you exactly what the problem is. It sounds to me like someone is just trying to throw parts to fix a problem they can't figure out.
Tell us a little more about how you came to the conclusion you need to spend all that money.
Tell us a little more about how you came to the conclusion you need to spend all that money.
Thread Starter
|
New User
Joined: Dec 2008
Posts: 15
Likes: 0
Thanks for the reply!! I appreciate the advice. Symptoms initially were unpredictable stalling at any speed, including hiway. Simply let up on pedal and truck restarted since I have 6spd. International dealer locally did computer diagnostic that said PCM was bad. Replaced PCM and took care of problem for a while. Stalling started again so went to Ford dealer this time and said 3rd injector was gone. Replaced one (mistake?) injector and ran OK for a while again. Now is not only stalling but got noticeable skip as well. MPG dropped average from 17 to about 12. Im told by many owners/mechanic that the injectors GO bad in 7.3 after 100K. My road mechanic was former International guy.
SO, no-one really seems to know the exact problem. Im wondering if there's a really good Powerstroke guy here in New England? Another truck, International
dump 4700 w/ 444E also needs them because will not start below 40 degrees. I had Blackstone labs do oil analysis and Iron content in oil suggested to them
the spray pattern was poor. Same injectors? I use only Stanadyne additive religiously, all year, because it takes out water at the filter, rather than dispersing it. I do maintenance religiously, like Rotella w/ filters 4 - 5000 miles, fuel filters, air, etc.
SO, no-one really seems to know the exact problem. Im wondering if there's a really good Powerstroke guy here in New England? Another truck, International
dump 4700 w/ 444E also needs them because will not start below 40 degrees. I had Blackstone labs do oil analysis and Iron content in oil suggested to them
the spray pattern was poor. Same injectors? I use only Stanadyne additive religiously, all year, because it takes out water at the filter, rather than dispersing it. I do maintenance religiously, like Rotella w/ filters 4 - 5000 miles, fuel filters, air, etc.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
What kind of dash lights do you get flashing when the truck acts up?
There's nothing wrong with replacing just one injector if that's the only one that's bad. I've got over 275k on my stock injectors so don't replace yours just because they've gone over 100k miles.
A noticeable skip could be a bad injector, or injector wire, or it could be a CPS issue as Roland mentioned. There may also be a wiring issue between the IDM and the valve covers.
I'd try and find someone who can do an injector buzz test and cylinder contribution test to see what that tells you. Have you had the CPS replaced under recall from Ford? The CPS they are using in the recall has been known to cause contribution faults on cylinders 3 & 8 so keep that in mind when you do the testing.
There's nothing wrong with replacing just one injector if that's the only one that's bad. I've got over 275k on my stock injectors so don't replace yours just because they've gone over 100k miles.
A noticeable skip could be a bad injector, or injector wire, or it could be a CPS issue as Roland mentioned. There may also be a wiring issue between the IDM and the valve covers.
I'd try and find someone who can do an injector buzz test and cylinder contribution test to see what that tells you. Have you had the CPS replaced under recall from Ford? The CPS they are using in the recall has been known to cause contribution faults on cylinders 3 & 8 so keep that in mind when you do the testing.
Trending Topics
Fleet Mechanic
Joined: Dec 2007
Posts: 1,766
Likes: 8
From: Hutchinson, KS
That was going to be my question. I had the diesel tech at the local Ford dealership here tell me that he's hooked trucks up to diagnostics before and getting info that injectors were bad, only to replace them and still getting the same issues and info on the scanner. Ended up being the CPS all along and had nothing to do with under the valve covers.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
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
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
#8 failing a buzz test is bad Justin. Did it fail the buzz test, or the contribution test? If it was the buzz test, did it just sound weak, or was there no sound at all? No buzz either means a bad wire or a dead injector.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Either way, it sounds like it's time for a new injector unless you want to give the much debated Hot Shot's Secret a try. You might PM Jeremy and see if he ever got his refund.