Franklin Jones
Well-Known Member
Morning all!
'14 EL KR 4WD w/127k miles. No codes/MIL.
Question: Do you consider fuel injectors as a wear item that should be replaced periodically?
I'm struggling to hit double digit MPG in the city, and only reach around 12 on the highway. From what I see, those are both about 25% below where they should be and what others report.
Had a "tune up" done around 110k miles with new plugs, new filter, cleaned MAF, new O2s, fresh fluids, etc. etc. Still has stock coils.
Tires are stock Michelin defenders w/good tread. No lift.
Idle is good, plenty of power, no signs of a miss.
My driving is mostly urban/suburban, but when we hit the highway we're cruising @68-70mph for 100's of miles at a time. I've learned to drive with a light foot and really p|$$ off the drivers behind me pulling away from a stoplight.
We're in corn country, so I use E10. While I have my favorite station for convenience, I get the same MPG behavior regardless of where i fuel up.
The exhaust smells rich, like it's from the 1970s, and when I pop the hood I feel like there's an odor there as well.
If I run a bottle of regane through the system, MPG perks right up... but then fades as soon as I fill the tank again.
I'm thinking I have a leaky/weepy injector or two, but with no codes and a smooth idle, it'll be tough to track down if that's the case. I've never considered injectors a wear item - if they don't work, they'll tell you - but in researching I'm seeing places claim that they should be -replaced- every 100k.
So, thoughts? Am I chasing an MPG figure (12-13 city, 16-18 highway) that isn't attainable? Or do I have an issue that needs addressed? If an issue, am I headed in the right direction? Don't want to throw $250 down the drain if injectors are fine, but I'm feeling that way every time I fuel up anyway and single-digit city MPG is making me want to trade it in if I can't figure it out.
'14 EL KR 4WD w/127k miles. No codes/MIL.
Question: Do you consider fuel injectors as a wear item that should be replaced periodically?
I'm struggling to hit double digit MPG in the city, and only reach around 12 on the highway. From what I see, those are both about 25% below where they should be and what others report.
Had a "tune up" done around 110k miles with new plugs, new filter, cleaned MAF, new O2s, fresh fluids, etc. etc. Still has stock coils.
Tires are stock Michelin defenders w/good tread. No lift.
Idle is good, plenty of power, no signs of a miss.
My driving is mostly urban/suburban, but when we hit the highway we're cruising @68-70mph for 100's of miles at a time. I've learned to drive with a light foot and really p|$$ off the drivers behind me pulling away from a stoplight.
We're in corn country, so I use E10. While I have my favorite station for convenience, I get the same MPG behavior regardless of where i fuel up.
The exhaust smells rich, like it's from the 1970s, and when I pop the hood I feel like there's an odor there as well.
If I run a bottle of regane through the system, MPG perks right up... but then fades as soon as I fill the tank again.
I'm thinking I have a leaky/weepy injector or two, but with no codes and a smooth idle, it'll be tough to track down if that's the case. I've never considered injectors a wear item - if they don't work, they'll tell you - but in researching I'm seeing places claim that they should be -replaced- every 100k.
So, thoughts? Am I chasing an MPG figure (12-13 city, 16-18 highway) that isn't attainable? Or do I have an issue that needs addressed? If an issue, am I headed in the right direction? Don't want to throw $250 down the drain if injectors are fine, but I'm feeling that way every time I fuel up anyway and single-digit city MPG is making me want to trade it in if I can't figure it out.