20 Most Recent 1991 Ford LTD Crown Victoria Questions & Answers


turn on the ignition. if the yellow gets power with the key on, and no power with the key off, it connects to the yellow on the radio. Yellow on the radio is for memory power, to remember your presets and clock.

All aftermarket radios now are all the same when it comes to wiring colors.

black is always common, or ground for all aftermarket radios.

1991 Ford LTD... | Answered on Oct 09, 2018


that is a good thing

1991 Ford LTD... | Answered on Dec 14, 2015


I dont see if the turn signal light has to do any thing with the engine shutting off, make sure the IAC idle air control valve is working, air filter is good, fuel filter is good and IF your vehicle has a power steering pressure switch then that could be causing it but with 1985 Crown Vic I dout it.

1991 Ford LTD... | Answered on Jun 02, 2015


its located at the back of the engine near the firewall. it has a large hose connected to it(3/8") if I remember right. it is attached to top of the PCV valve. pull the hose off then you can pull the valve out of the rubber grommet that holds it into the engine.

1991 Ford LTD... | Answered on Sep 24, 2014


did you have your switches checked 1st? they may be the fault which is a lot easier to repair than stripping your door down just to find out is was the switch;
I did an electric window repair recently and found that the drive gear and track that runs on it just needed lubricating as they had become dry over the years as they do not get serviced.
To remove the motor you will need to remove the interior door trim and plastic weather seal behind it to gain access to the inside of the door.
some of the electric window mechanisms are pop riveted to the door panel which you will have to drill out the pop rivets and replace them with new ones when you are fitting it all back in the door.
Some electric widows run on a cable setup which you will have to replace the whole setup as a unit.

1991 Ford LTD... | Answered on Jul 23, 2014


keyon, very bad, and cranking very common.

battery power is weak, not 12.6v rested.
use a volt meter
or jumper cable start it.
walfart has voltmeter for $10 , the $20 Crown VIc meter ,is 20
get a cheap DMM and see.
or here.
a whopping 15 bucks and magic happens, you see the system mess up even driving. same place next o car batteries, walk in. see it.
http://www.walmart.com/ip/Equus-Innova-3721-Battery-and-Charging-System-Monitor/15137663

if the battery is good and the meter above is low, the cars wiring is bad. (corrosion does kill all old cars. )
i restore old cars, and can show this all day,..... its endless.
have lots of photos too.

that clattering is all the computers in car, (1 or 2 back when)
are going NUTS with 1/2 power appied. all modern cars do this.
and worse newer, (be happy car is not new)



Sig: I must ask questions first, I'm blind, and my tools can't reach, dig?

1991 Ford LTD... | Answered on Jun 22, 2014


Have you checked the brake light switch to see if you have power going in and out ?

1991 Ford LTD... | Answered on Mar 06, 2014


Usually 1 of 2 reasons. Some cars have a water control valve which makes hot water go through the heater core. The water valve is operated either by cable or Vacuum control.

Feel the 2 water lines from the heater core when the engine is hot. They should both be hot with the heat turned on. If one is cooler than the other, it is a water control valve problem.

If both lines are hot, then you have a problem inside the car and under the dash. The air flaps in the duct work are not changing the flow of air. You could have a slipped cable by the heater flap or a Vacuum pull-down is not working. Operate the heater control and see if the heater cable moves anything or not.

1991 Ford LTD... | Answered on Sep 23, 2013


A 1997 Jeep Cherokee has 190-hp and 225 ft/lbs of torque at 3,000 rpm. ---------------------------------------------------------------------------------------
Tacho Pro 2008 July PLUS

1991 Ford LTD... | Answered on Mar 27, 2013

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