My 93 Crown Vic is running very rough and backfires when accelerating sometimes. What is wrong?

10

Asked by Jan 31, 2014 at 02:09 AM about the 1993 Ford Crown Victoria 4 Dr LX Sedan

Question type: Maintenance & Repair

5 Answers

116,535

How long since your last major tune up?

1 of 1 people found this helpful.
10

About a year and a half ago.

1 of 1 people found this helpful.

1993...what engine? ..does it have a distributor or coil pack(s)? If it has a distributor the timing may be way too advanced. The backfiring is unburnt fuel in the combustion chamber igniting before it's supposed to. Put a timing light on it, and even without knowing what engine you can't go wrong setting it at 6 to 8 BTDC

4.6 with distributor I think. Looked up the car. Turn distributor until it idles as high as it will go, then turn it counter-clockwise until the idle slows down a little bit. Re- tighten hold-down bolt (I forgot to say loosen first)

4.6 has coil packs

1 of 1 people found this helpful.

Your Answer

Crown Victoria

Looking for a Used Crown Victoria in your area?

CarGurus has 950 nationwide Crown Victoria listings starting at $1,496.

ZIP:

Ford Crown Victoria Experts

  • #1
    Tracy Hooks
    Reputation
    1,890
  • #2
    Tom Demyan
    Reputation
    1,120
  • #3
    tennisshoes
    Reputation
    800
View All

Related Models For Sale

Used Mercury Grand Marquis
26 Great Deals out of 1,702 listings starting at $800
Used Ford Taurus
244 Great Deals out of 15,126 listings starting at $1,800
Used Lincoln Town Car
27 Great Deals out of 1,686 listings starting at $1,099
Used Ford Mustang
604 Great Deals out of 39,738 listings starting at $1,988
Used Chevrolet Impala
580 Great Deals out of 34,544 listings starting at $900
Used Ford Explorer
1,269 Great Deals out of 70,071 listings starting at $1,000
Used Ford F-150
3,258 Great Deals out of 223,478 listings starting at $1,200
Used Chevrolet Caprice
150 listings starting at $9,995
Used Honda Accord
1,116 Great Deals out of 74,391 listings starting at $1,100
Used Toyota Camry
1,109 Great Deals out of 87,562 listings starting at $995
Used Chevrolet Camaro
456 Great Deals out of 31,823 listings starting at $1,450

Used Cars For Sale

2011 Ford Crown Victoria For Sale
119 listings starting at $4,250
2008 Ford Crown Victoria For Sale
106 listings starting at $4,000
2007 Ford Crown Victoria For Sale
74 listings starting at $3,499

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.