2005 Ford Taurus bucks at 18-20 mph

10

Asked by Oct 21, 2014 at 11:36 AM about the 2005 Ford Taurus SE

Question type: Maintenance & Repair

Codes indicate possible bad catalytic converter, but I already replaced it. Codes went off for a while after replacing, then came back on. Not sure if pertinent, but I know a bad cat can cause a bucking. So maybe something else is making the cat go bad or has similar codes? Misfire/ lean / etc

Anyway...

when coming out of a stop, car bucks at around 18- 20 mph. I can sometimes prevent it from happening by either accelerating slowly past that mark, or letting off the gas right before it then accelerating again.

If I have a long drive (2 hours+), sometimes it doesn't do it at all or as much after that for the rest of the day.

Doesn't usually buck when coming out of a stop and making a wide turn (like an intersection).

Doesn't usually do it if I slow down to go under 20, then accelerate again without actually stopping.

Thank you in advance for any help .

1 Answer

10

Codes are P0300 Random Misfire p0420 catalytic system below threshold bank 1 p0430 catalytic system below threshold bank 2

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Ford Taurus Questions

Ford Taurus Experts

#1 Tom Demyan
Tom Demyan
Reputation 3,790
#2 lightGear
lightGear
Reputation 1,910
#3 dandyoun
dandyoun
Reputation 1,870
View All

Related Models For Sale

Used Ford Fusion
1,005 Great Deals out of 84,247 listings starting at $1,900
Used Chevrolet Impala
523 Great Deals out of 29,491 listings starting at $799
Used Dodge Charger
285 Great Deals out of 27,027 listings starting at $2,250
Used Ford Explorer
805 Great Deals out of 74,600 listings starting at $750
Used Ford Mustang
371 Great Deals out of 46,937 listings starting at $1,999
Used Chrysler 300
346 Great Deals out of 20,406 listings starting at $1,000
Used Ford F-150
2,232 Great Deals out of 208,467 listings starting at $1,499
Used Honda Accord
758 Great Deals out of 87,618 listings starting at $1,250
Used Chevrolet Malibu
862 Great Deals out of 81,172 listings starting at $995
Used Ford Focus
534 Great Deals out of 56,290 listings starting at $800
Used Toyota Camry
841 Great Deals out of 90,103 listings starting at $950
Used Nissan Maxima
282 Great Deals out of 26,375 listings starting at $1,989
Used Buick LaCrosse
178 Great Deals out of 22,253 listings starting at $2,200

Used Cars For Sale

2017 Ford Taurus SE For Sale
742 listings starting at $21,000
2016 Ford Taurus SE For Sale
461 listings starting at $16,000
2015 Ford Taurus SE For Sale
3 Great Deals out of 100 listings starting at $9,995
2014 Ford Taurus SE For Sale
6 Great Deals out of 170 listings starting at $9,500
2013 Ford Taurus SE For Sale
7 Great Deals out of 177 listings starting at $7,900