Engine Power Issues / Bucking
Posting Guru
Joined: Feb 2005
Posts: 2,295
Likes: 2
The most likely issue is an oxygen sensor failure. If memory serves, there are a total of 4 - one upstream and one downstream for each bank. These are common failure items.
Other possibilities would be a failed (or missing - don't have any thieves in the area do you) cat or an exhaust leak.
Other possibilities would be a failed (or missing - don't have any thieves in the area do you) cat or an exhaust leak.
Thread Starter
|
Freshman User
Joined: Mar 2010
Posts: 25
Likes: 0
ok, so its been down for a bit now and sadly i have had to drive it. I have been easy on the throttle, but i am afraid if i replace the 02 sensors that the cat is going to be bad too. Should i go ahead and assume the cat is done? Its only 30,000 miles on the engine, but i know this issue could have destroyed it. How likely is it that it is JUST the 02 sensors? By the way, i went ahead and ordered new COPS and plugs, a new air filter, and fuel filter. I am just waiting on it all to come in. Already cleaned the MAF and throttle body. I really just want this fixed.
Also, how easy is it to replace the cat? Should it go to the dealer or can i do it quick and simple?
And no, its not missing, no thieves.
Also, how easy is it to replace the cat? Should it go to the dealer or can i do it quick and simple?
And no, its not missing, no thieves.
Laughing Gas
Joined: Dec 2010
Posts: 1,200
Likes: 45
From: Timbuk3, MI
Of the possible causes for the P0430, IMO the most likely candidate is a damaged/contaminated O2 sensor(s) caused by using unleaded fuel (e.g. diesel).
BUT ... The catalytic convert for bank 2 may be damaged/contaminated -IF- the O2 sensors are reading correctly.
BTW ... Bank 2 is thr LH (driver size).
------------------------------
-click- the pic'
Goth 150
< This space intentionally -blank- >
BUT ... The catalytic convert for bank 2 may be damaged/contaminated -IF- the O2 sensors are reading correctly.
BTW ... Bank 2 is thr LH (driver size).
-click- the pic'
Goth 150
< This space intentionally -blank- >
Moderator
Joined: Jul 2011
Posts: 6,513
Likes: 669
From: Sioux Falls Area
if it is a dirty/contaminated O2 sensor, is there a do-it-yourself way to clean them?
i've read something about making the engine to lean at a high idle to get the temps up enough that they will burn off any contamination. but i don't know enough about it to say anything more than that.
any ideas?
i've read something about making the engine to lean at a high idle to get the temps up enough that they will burn off any contamination. but i don't know enough about it to say anything more than that.
any ideas?
Posting Guru
Joined: Feb 2005
Posts: 2,295
Likes: 2
The cat isn't a common failure item, and they are expensive... according to Tasca's site there are two (left and right) and they are almost $600/ea. (unless you're in California, then they're almost $800/ea.) The sensors are about $100/ea. - there are two uppers (left and right) and one lower.
The dealership should be able to look at the values from these sensors in real time... usually one that has failed will be really out of whack compared to the others. You can also do this yourself with the right OBD2 software and cables, if you want to make that investment.
Or, just use the shotgun approach. Order a new upper left O2 sensor and swap it out. They are usually easy to replace. Then reset the computer (pull ground off battery for 15 minutes) to reset all the fuel trims.
The dealership should be able to look at the values from these sensors in real time... usually one that has failed will be really out of whack compared to the others. You can also do this yourself with the right OBD2 software and cables, if you want to make that investment.
Or, just use the shotgun approach. Order a new upper left O2 sensor and swap it out. They are usually easy to replace. Then reset the computer (pull ground off battery for 15 minutes) to reset all the fuel trims.
Laughing Gas
Joined: Dec 2010
Posts: 1,200
Likes: 45
From: Timbuk3, MI
tvsjr ... there are two uppers (left and right) and one lower.
The dealership should be able to look at the values from these sensors in real time... usually one that has failed will be really out of whack compared to the others.
You can also do this yourself with the right OBD2 software and cables, if you want to make that investment.
.
Posting Guru
Joined: Feb 2005
Posts: 2,295
Likes: 2
Thanks gDMjoe... I thought there were 4 (even said that earlier) but looking at Tasca's site, that wasn't readily apparent. D'oh.
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
Thread Starter
|
Freshman User
Joined: Mar 2010
Posts: 25
Likes: 0
I do not think you all are getting the main point that even though its a Ford Dealer, ITS AFRICA!!! They get all their trucks (different models than US) from South Africa, so they are opposite drive sides, catalytic converter free, and different calibration equipment. They have helped me some, but they cannot perform too much. They simply aren't familiar with this engine, as they have 0 tritons here.
I have ordered the 02 sensors for both upstream and downstream, driver side. Thanks for the diagram, as the part numbers definitely helped on that part.
As far as resetting the throttle control module... how would i do that?
I have ordered the 02 sensors for both upstream and downstream, driver side. Thanks for the diagram, as the part numbers definitely helped on that part.
As far as resetting the throttle control module... how would i do that?
Thread
Thread Starter
Forum
Replies
Last Post
dyhrdford
1999 - 2003 7.3L Power Stroke Diesel
25
Jun 3, 2009 10:33 PM