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

106,025

How long since your last major tune up?

1 out of 1 people think this is helpful.
10

About a year and a half ago.

1 out of 1 people think this is helpful.
148,845

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

148,845

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 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Crown Victoria

Looking for a Used Crown Victoria in your area?

CarGurus has 1,217 nationwide Crown Victoria listings starting at $1,700.

ZIP:

Search Ford Crown Victoria Questions

Ford Crown Victoria Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 1,700
#2 Tom Demyan
Tom Demyan
Reputation 870
#3 FordNut
FordNut
Reputation 850
View All

Related Models For Sale

Used Mercury Grand Marquis
26 Great Deals out of 2,196 listings starting at $1,995
Used Chevrolet Impala
792 Great Deals out of 34,371 listings starting at $799
Used Ford Mustang
363 Great Deals out of 44,352 listings starting at $1,000
Used Lincoln Town Car
29 Great Deals out of 2,074 listings starting at $1,995
Used Ford Taurus
255 Great Deals out of 20,458 listings starting at $1,500
Used Ford F-150
2,691 Great Deals out of 211,555 listings starting at $1,000
Used Ford Explorer
940 Great Deals out of 73,742 listings starting at $750
Used Chevrolet Caprice
174 listings starting at $13,998
Used Honda Accord
814 Great Deals out of 81,559 listings starting at $899
Used Chevrolet Camaro
283 Great Deals out of 38,314 listings starting at $1,250

Used Cars For Sale

2011 Ford Crown Victoria For Sale
6 Great Deals out of 145 listings starting at $3,700
2008 Ford Crown Victoria For Sale
3 Great Deals out of 143 listings starting at $1,700
2007 Ford Crown Victoria For Sale
95 listings starting at $2,995