Nov 11, 2012 at 8:37 PM
My 93 grand marquis keeps blowing the 20a ignition coil fuse under the hood. It will drive for a second then blow. Any suggestions on where to start.
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Problem with 93 grand marquis
Crown Victoria, Marauder, Marquis
Problem with 93 grand marquis
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Nov 12, 2012 at 6:56 AM
If you have the Haynes or Chilton manual, trace down the wiring diagram from the fue forward. To blow a 20amp fuse means you have a short, but where is the problem. Finding a short takes quite a while to trace each wire in the circuit to check if it is frayed. Also, it could be an internal short in the coils.And it will be time consuming.
The fuse is between the power supply and where it is shorting out. Start unwrapping wiring and check them carefully. Eventually you will find the problem.
The fuse is between the power supply and where it is shorting out. Start unwrapping wiring and check them carefully. Eventually you will find the problem.
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PROUD MEMBER of www.crownvic.net
It's just a SUPER-DUTY Mustang GT Sedan. 198K miles and still rolling HARD.
1997 Crown Victoria P71 SVT *** ex-US Marshall service (the CAR)
STOCK?? I bet it was modified.
13.26 @ 107.24 MPH 1/4 mi w/ me, tools, & full tank of 93 octane
I added CAI, NICHE 19 X 8.5 " wheels with 245/45ZR 19 rubbers, and completely rebuilt the front end with poly bushings, Kooks headers, 2 1/4inch exhaust, TCI 2200-2400 rpm Stall converter
.PLANS:: engine upgrade, 5.4L 2v stroker, rebuild interior in leather w/ buckets, thinking about turbos
PROUD MEMBER of www.crownvic.net
It's just a SUPER-DUTY Mustang GT Sedan. 198K miles and still rolling HARD.
1997 Crown Victoria P71 SVT *** ex-US Marshall service (the CAR)
STOCK?? I bet it was modified.
13.26 @ 107.24 MPH 1/4 mi w/ me, tools, & full tank of 93 octane
I added CAI, NICHE 19 X 8.5 " wheels with 245/45ZR 19 rubbers, and completely rebuilt the front end with poly bushings, Kooks headers, 2 1/4inch exhaust, TCI 2200-2400 rpm Stall converter
.PLANS:: engine upgrade, 5.4L 2v stroker, rebuild interior in leather w/ buckets, thinking about turbos
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