I own a 2005 Ford F-150 which I received a letter from Ford stating that my fuel injectors were given a defect only extended warranty to 150,000 miles. I have had a few injectors replaced since the letter because of defect..I.e white smoke from exhaust and stutter of engine while driving. Right after my last replacement of a fuel injector my catalytic converter was giving a bad odor..afterwards I had a diagnostic checked and the outcome was a bad converter. After several forums I have read I have noticed that several....several.. people have catalytic converter problems after the replacement of fuel injectors..some even having two or three replaced within just a few thousand miles and after having another fuel injector replaced. Is the fuel injector problem a problem for the converter..its a big coincidence that so many have had the same problems after replacing defective fuel injectors..

- Crossville, TN, USA

Spark plugs breaking off in engine head because of poor design. Just happened to me and after looking around the internet it has happened to a lot of people and now the service department of my local Ford dealership says it common and now they are charging me becuase they broke it and its common.

- Ephrata, PA, USA

As I was driving down a major highway in South Carolina, I felt like my transmission might be slipping in my 2005 Ford F-150. I took it immediately to a local and reputable mechanic who tested the transmission and subsequently informed me that it was the engine, specifically the spark plugs. In their investigation it was determined that 4 of my 8 spark plugs were broken. They had to use a special tool, developed by Ford just for this "problem", in order to extract the broken plugs. The mechanic stated that Ford should have to recall these or forced to reimburse consumers for the expensive repairs due to a design error. Upon researching on-line, I was totally amazed at how many and how much a problem people have had with these plugs and the consumer is paying for their defect. This is not right. The total cost for this repair for me was $358.55. Tell me how many other cars or trucks require this type of repair to replace spark plugs? I would L like for your Agency to investigate the number of repairs consumers have had to make because of this defect. [xxx] SC drivers license no. [xxx] VIN [xxx] thank you for investigating this defect. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Spartanburg, SC, USA

Notified today that there is an issue with removing and replacing spark plugs for the Ford 5.3 Triton V8 3 valve engine. Ford has issued a technical service bulletin tsb 08-7-6 and it is not available on your website. Why" if this is indeed a manufacturers defect should it not be covered by their original warranty or the magnusen-moss warranty act and or the ucc, article 2. this procedure can be both timely and costly for a consumer. I have received quotes ranging from 250 to 1600 dollars. Should the consumer be expected to shoulder the burden of this issue"

- Gastonia, NC, USA