Injector cleaning 5.0
06-11-2015, 06:23 PM
#1
Injector cleaning 5.0
Ok so I have a 2011 f150 61500 miles. But less than 5000 miles on the 5.0 short block. New motor craft plugs gapped correctly. There a distinct slightly rough idle in park. Great power, throttle response, OK fuel mileage (16.5 but with 33 inch e load range mud grips so I think that's decent.) Do you think a full on injector cleaning from the dealership would be worth it? It's never been done, and since I've had the truck I've ran Shell 93 octane and run b 12 or seafoam every few tanks. Still that little rough idle is annoying. I know that on the older trucks they'd hook up a can of cleaner to a manifold gauge set and hook that up to the fuel rail. How's it done on the 5.0s?
06-11-2015, 08:49 PM
#2
Senior Member
have you ever tried any CHEVRON TECHRON?
06-12-2015, 11:22 AM
#3
Do you mean the actual fuel or the fuel treatment they sale in the store? I don't like the fuel treatment, I only use b 12 or seafoam. And for the fuel we have almost all shell gas stations here.
The following users liked this post:
130428 (03-07-2016)
06-20-2015, 12:53 AM
#5
Senior Member
Ok so I have a 2011 f150 61500 miles. But less than 5000 miles on the 5.0 short block. New motor craft plugs gapped correctly. There a distinct slightly rough idle in park. Great power, throttle response, OK fuel mileage (16.5 but with 33 inch e load range mud grips so I think that's decent.) Do you think a full on injector cleaning from the dealership would be worth it? It's never been done, and since I've had the truck I've ran Shell 93 octane and run b 12 or seafoam every few tanks. Still that little rough idle is annoying. I know that on the older trucks they'd hook up a can of cleaner to a manifold gauge set and hook that up to the fuel rail. How's it done on the 5.0s?
My smog tech also swears by Chevron with Techron every tank before a smog if your vehicle is questionable. If you don't have a chevron gas station then you can buy it by the bottle at many auto parts stores and/or Walmart.
While you're at the auto parts store, buy a can of CRC MAF cleaner and clean your MAF sensor. Make sure you let it dry before hooking it back up and driving. Not saying this will help your problem, but it's good maintenance IMO.
Last edited by mechanicboy; 06-20-2015 at 12:55 AM.
06-20-2015, 01:18 AM
#6
Senior Member
If e85 is available in your area run a couple tanks of that. This helps for two reasons; 1. It's a solvent (and the most common ingredient in most injector cleaners anyway). 2. Because it takes more fuel to operate the engine it will cycle the injectors more causing a better flush of the injectors.
My smog tech also swears by Chevron with Techron every tank before a smog if your vehicle is questionable. If you don't have a chevron gas station then you can buy it by the bottle at many auto parts stores and/or Walmart.
While you're at the auto parts store, buy a can of CRC MAF cleaner and clean your MAF sensor. Make sure you let it dry before hooking it back up and driving. Not saying this will help your problem, but it's good maintenance IMO.
My smog tech also swears by Chevron with Techron every tank before a smog if your vehicle is questionable. If you don't have a chevron gas station then you can buy it by the bottle at many auto parts stores and/or Walmart.
While you're at the auto parts store, buy a can of CRC MAF cleaner and clean your MAF sensor. Make sure you let it dry before hooking it back up and driving. Not saying this will help your problem, but it's good maintenance IMO.
Interesting what you say about 85, I ran a full tank in a Tahoe once. It never ran the same and I have never used it again in anything!
06-20-2015, 01:25 AM
#7
Senior Member
Edit: you got me thinking about GM ecus so I did some research. Apparently, when you switch ethanol contents on a GM vehicle, you need to leave the engine running for at least 7 minutes after the switch so it will get an accurate reading of the alcohol content. If you don't do this it will screw of the ecu and often won't recover properly until the computer is manually forced to relearn. I hope this helps someone.
OP, if you're sure the injectors are bad, you can get a set of brand new ones for about $250 to your door from Rockauto.com. If you look around you might be able to get them cheaper, just make sure they are the right ones.
Last edited by mechanicboy; 06-20-2015 at 01:45 AM.
The following users liked this post:
digitaltrucker (06-20-2015)
Trending Topics
06-20-2015, 02:13 AM
#8
Member
Injector cleaning 5.0
Techron fuel injector cleaner, Gumout all-in-1 or, any of the Gumout regane products will clean the injectors better than most anything else you can buy. They contain Polyetheramine (pea) which the strongest fuel additive there is and really the only one that works!
03-06-2016, 03:47 PM
#10
Sorry to bring up an old thread, but I bought a 13 Lariat Screw with 5.0 with 76k. It runs like new, no issues at all. However, I don't know how or what was maintained by the previous owner. So I've changed the oil and air filter. Now I'm looking to do a FI cleaner...
I found in the OM that you should not use additives in the trans, but nothing on if it's ok for the engine. I assume it's like any other, unless someone has found something I haven't...if so, do tell.
I'd like to run some of the stuff dealers run through it. What is it called and where can I get it?
I found in the OM that you should not use additives in the trans, but nothing on if it's ok for the engine. I assume it's like any other, unless someone has found something I haven't...if so, do tell.
I'd like to run some of the stuff dealers run through it. What is it called and where can I get it?