Why is my catalytic converter glowing

30

Asked by Apr 24, 2015 at 06:52 AM about the 2003 Ford F-150 XLT Extended Cab 4WD SB

Question type: Maintenance & Repair

previous blew out spark plug out of
head

10 Answers

30

Catalytic clogged

1 people found this helpful.
285,375

Glowing cat is from a rich condition. So excess fuel is being burned int the cats vs the engine. Check for a misfire, or leaky fuel injector. How is the truck running? CEL on?

285,375

Unfortunately if you let this condition persist, then yes the cataltic convertor might be ready to replace. But fix the reason of the truck is running rich first, becuase you will be replacing the new cat in short order.

30

Intermittent misfire on 3 what is CEL

30

Both sides were hot I could understand if one side was hot and the other normal so it puzzled me

1 people found this helpful.
30

Check engine light is not on did put a new coil pack on when changed was on previously

1 people found this helpful.
285,375

CEL is Check engine light, fix the misfire condition, by changing the plugs, and or coil.

21,485

If your plug comes out of the head then raw fuel has the potential to contaminate the cat as it won't be firing and burning fuel. Ahh the ford triton motor

30,015

This is an example of a converter meltdown. The converter was super- heated due to a raw fuel condition in the exhaust flow. The excess unburned fuel ignited when it struck the hot ceramic catalyst and drove the temperature far above the normal operating condition of the converter. The ceramic catalyst is unable to withstand the extremely high temperature and begins to melt. The ceramic collapses and the converter is destroyed. The melted ceramic may block the exhaust flow and cause additional damage to the engine. A converter glowing red-hot, or evidence of heat discoloration, confirms this situation. The condition that led to this converter meltdown could be the result of a number of malfunctions including faulty oxygen sensor, an incorrect fuel mixture, worn spark plugs or plug wires, a faulty check valve, incorrect ignition timing, sticking float, faulty fuel injectors or other ignition malfunctions.

6 people found this helpful.

How do prevent my new cat from clogging?

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 215,477 nationwide F-150 listings starting at $1,300.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    10,210
  • #2
    dandyoun
    Reputation
    4,830
  • #3
    tennisshoes
    Reputation
    3,650
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,781 Great Deals out of 149,286 listings starting at $1,495
Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used Ford F-250 Super Duty
374 Great Deals out of 42,218 listings starting at $1,600
Used Toyota Tundra
478 Great Deals out of 38,526 listings starting at $1,999
Used Dodge Ram 1500
316 Great Deals out of 9,549 listings starting at $800
Used Toyota Tacoma
439 Great Deals out of 44,078 listings starting at $1,995
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150
Used Chevrolet Colorado
295 Great Deals out of 41,682 listings starting at $1,900
Used Ford F-350 Super Duty
431 Great Deals out of 24,311 listings starting at $3,900
Used Nissan Titan
254 Great Deals out of 22,941 listings starting at $1,995
Used Ford Explorer
801 Great Deals out of 64,315 listings starting at $1,000
Used Chevrolet Silverado 2500HD
361 Great Deals out of 29,859 listings starting at $2,500
Used Chevrolet Tahoe
528 Great Deals out of 36,655 listings starting at $1,375

Used Cars For Sale

2018 Ford F-150 For Sale
79 Great Deals out of 138,368 listings starting at $17,895
2017 Ford F-150 For Sale
144 Great Deals out of 10,171 listings starting at $19,499
2016 Ford F-150 For Sale
213 Great Deals out of 8,805 listings starting at $14,500
2015 Ford F-150 For Sale
280 Great Deals out of 10,501 listings starting at $11,990
2014 Ford F-150 For Sale
414 Great Deals out of 11,726 listings starting at $7,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.