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


The replacement ignition switch could be defective or wired incorrectly.

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


The replacement alternator could be defective.

1991 Ford LTD... | Answered on Feb 28, 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


You probably will discover eventually that the battery is failing. Its age could be a factor.

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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