Check engine light - lean airflow
Thread Starter
|
Junior User
Joined: Nov 2003
Posts: 74
Likes: 1
Okey-dokey.
I changed the fuel filter yesterday and the air filter.
I can notice a huge difference in power after changing the fuel filter.
Hopefully this is the problem. My ride into work was uneventful and the check engine light stayed off.
Hopefully the ride home will be just as boring...
I changed the fuel filter yesterday and the air filter.
I can notice a huge difference in power after changing the fuel filter.
Hopefully this is the problem. My ride into work was uneventful and the check engine light stayed off.
Hopefully the ride home will be just as boring...
Elder User
Joined: Oct 2001
Posts: 724
Likes: 0
From: Cypress, CA
Seismojones: Here is a website that has the OBD II code definitions for your reading pleasure or displeasure depending on the circumstances .
http://autorepair.about.com/cs/troub...l_obd_main.htm
Hope this is helpful
Russ
http://autorepair.about.com/cs/troub...l_obd_main.htm
Hope this is helpful
Russ
Thread Starter
|
Junior User
Joined: Nov 2003
Posts: 74
Likes: 1
Thanks for the info, Russ.
I'll give it a look. Unfortunately, in the meantime, my check engine light continues to come on.
While looking at the possibility of a vacuum leak, I ran across this hose that seems to be flattened.
Is this normal? Could this be the reason for my lean mixture codes?
http://home.alltel.net/seismo/images/hose.jpg
I'll give it a look. Unfortunately, in the meantime, my check engine light continues to come on.
While looking at the possibility of a vacuum leak, I ran across this hose that seems to be flattened.
Is this normal? Could this be the reason for my lean mixture codes?
http://home.alltel.net/seismo/images/hose.jpg
Freshman User
Joined: Oct 2003
Posts: 34
Likes: 0
hey that's the same elbow that was leaking on my sons 01 ranger . i used a piece of heater hose for a quick fix ( thread what to look for ) 
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
New User
Joined: Dec 2004
Posts: 6
Likes: 0
I have same problem
I have a 99 Ranger 3.0 v6 4x4, and am having the same problem with the same check engine light codes, I have changed my mass air flow sensor, new air filter,
New fuel filter, checked vaccum lines, at least what ones i can see and get to,
put a new egr pressure sensor & hoses on it, New spark plugs & wires, And also put 2 new O2 sensors on it, But yesterday I noticed that i actually have 3 O2 sensor's, I missed one. I took it to the local shop and for some reason they decided to clean out my convertors, It ran decent for about 50 miles, but was still idling rough, Now it is alot louder and the problem is getting worse it seems.
Also my truck has a problem with bogging out in basically every gear, but not consistantly, and has a top speed of about 75, anytime I try to get it up faster then that 5th gear bogs out and I have to down shift to get it back up to 75.
I took it to the muffler shop, and they say now i need new convertors, Funny thing is that when they checked the check enging codes at the shop, they said they were for O2 sensors, and when I go to AutoZone they say they are for system lean bank #1 and bank #2, Can the 1 O2 sensor I missed be the source of all these problems? If not what should I do next?
New fuel filter, checked vaccum lines, at least what ones i can see and get to,
put a new egr pressure sensor & hoses on it, New spark plugs & wires, And also put 2 new O2 sensors on it, But yesterday I noticed that i actually have 3 O2 sensor's, I missed one. I took it to the local shop and for some reason they decided to clean out my convertors, It ran decent for about 50 miles, but was still idling rough, Now it is alot louder and the problem is getting worse it seems.
Also my truck has a problem with bogging out in basically every gear, but not consistantly, and has a top speed of about 75, anytime I try to get it up faster then that 5th gear bogs out and I have to down shift to get it back up to 75.
I took it to the muffler shop, and they say now i need new convertors, Funny thing is that when they checked the check enging codes at the shop, they said they were for O2 sensors, and when I go to AutoZone they say they are for system lean bank #1 and bank #2, Can the 1 O2 sensor I missed be the source of all these problems? If not what should I do next?
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
Originally Posted by gutierrezre
I have a 99 Ranger 3.0 v6 4x4, and am having the same problem with the same check engine light codes, I have changed my mass air flow sensor, new air filter,
New fuel filter, checked vaccum lines, at least what ones i can see and get to,
put a new egr pressure sensor & hoses on it, New spark plugs & wires, And also put 2 new O2 sensors on it, But yesterday I noticed that i actually have 3 O2 sensor's, I missed one. I took it to the local shop and for some reason they decided to clean out my convertors, It ran decent for about 50 miles, but was still idling rough, Now it is alot louder and the problem is getting worse it seems.
Also my truck has a problem with bogging out in basically every gear, but not consistantly, and has a top speed of about 75, anytime I try to get it up faster then that 5th gear bogs out and I have to down shift to get it back up to 75.
I took it to the muffler shop, and they say now i need new convertors, Funny thing is that when they checked the check enging codes at the shop, they said they were for O2 sensors, and when I go to AutoZone they say they are for system lean bank #1 and bank #2, Can the 1 O2 sensor I missed be the source of all these problems? If not what should I do next?
New fuel filter, checked vaccum lines, at least what ones i can see and get to,
put a new egr pressure sensor & hoses on it, New spark plugs & wires, And also put 2 new O2 sensors on it, But yesterday I noticed that i actually have 3 O2 sensor's, I missed one. I took it to the local shop and for some reason they decided to clean out my convertors, It ran decent for about 50 miles, but was still idling rough, Now it is alot louder and the problem is getting worse it seems.
Also my truck has a problem with bogging out in basically every gear, but not consistantly, and has a top speed of about 75, anytime I try to get it up faster then that 5th gear bogs out and I have to down shift to get it back up to 75.
I took it to the muffler shop, and they say now i need new convertors, Funny thing is that when they checked the check enging codes at the shop, they said they were for O2 sensors, and when I go to AutoZone they say they are for system lean bank #1 and bank #2, Can the 1 O2 sensor I missed be the source of all these problems? If not what should I do next?
Have you tried changing the fuel filter? Ever run some fuel injector cleaner through the system? As I (and others) stated above, lean codes are the result of two things:
1) Too much unaccounted-for air getting into the cylinders (usually caused by a vacuum leak resulting from bad hoses and/or connections, manifold gaskets, etc.);
2) Not enough fuel getting into the cylinders (usually caused by restrictions in the fuel system or failing fuel system components).
New User
Joined: Dec 2004
Posts: 6
Likes: 0
I Dropped it off at the dealership, yesterday after work, they called me back and also said that it needed new cats, I hope that it fixes the problem. And yes I changed the fuel filter. My truck is making alot of noise, coming from the cats, I also put a bottle of fuel injector cleaner in it, to no avail. When the Ford Dealer called me they said that the cats were causing all of my problems, along with my check engine light, I am in doubts with that and totally agree with what you are saying, but either way the cats are under warranty , so no cost to me, I just hope they actually no what they are doing at the dealer. If not I guess I will be back on here asking you more questions..
Thread
Thread Starter
Forum
Replies
Last Post
JC155
6.0L Power Stroke Diesel
7
Sep 13, 2016 10:56 PM
misscali91
1973 - 1979 F-100 & Larger F-Series Trucks
38
Mar 1, 2016 04:44 AM
donnyh13
Escape & Escape Hybrid
7
Jun 8, 2013 09:09 AM