Tip & How-To about Ford Crown Victoria

Disconnect or Replace Battery on Ford Motor Cars and Trucks

Disconnecting or replacing your battery can lead to erratic behavior in the performance, idle, and other related drive-ability issues. Ford did not incorporate the( PROM) Program Read Only Memory in its computer.

That said Fords Failure Effects Management (FMEM) states in order for the computer to relearn its systems of inputs and outputs you must use this procedure for the vehicle's computer to re-learn its systems by using adaptive learning techniques.

FMEM Procedure:
-First, start the engine allow it to warm up to normal operating temperature.

- Raise RPMs to 2000 and hold it for two minutes. (needed for to heat up the oxygen (02) sensors).

-Then if you have a/c turn it on and allow to run for 5 minutes.

-Continue on with depressing the brake pedal once and let go - for those who have cruise control (this is for the BOO Switch- Brake On/ Brake Off Switch).

-In addition, turn the steering wheel half way one direction to the other direction and leave it there.

-Finally, drive the vehicle for 5 miles.

Customers have complained about rough idle, car cuts out when they make a turn, turn on a/c and car's idle is low and cuts out. For those of you who are computer literate when you format your hard drive the drive is wiped out- clean- of everything; then you install an operating system. Well, the car's computer is kept alive by the battery; when power is interrupted so is its memory. Battery Maintainer will save you headaches down the line

Note: GM does not have this problem because GM incorporates the PROM in its computers.

  • To help you save radio presets, clock settings, and computer memory codes, and will not have to worry about re calibrating sensors, and have to get a Radio Code from the dealership.
Click this link today to get yours Tools For Sale Cheap Auto Repair Help US
Thank you, and Happy Motoring, Lee Davidian, Sr.

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What is the firing order on 2004 alero.
The firing order for a 2004 Oldsmobile Alero with a V6 engine is typically 1-2-3-4-5-6. Cylinder 5 would be the fifth cylinder in the firing order. A misfire in cylinder 5 could potentially cause the symptoms you described, including the car shutting off while driving and the RPM gauge behaving erratically.

When a cylinder misfires, it can disrupt the engine's smooth operation and cause a loss of power. In some cases, it can be severe enough to stall the engine while driving. The erratic behavior of the RPM gauge could also be related to this misfire.
To address the issue, you should consider the following steps:

  1. Diagnose the Misfire: Confirm that the problem is indeed a misfire in cylinder 5. Use a scan tool to retrieve trouble codes and identify the specific issue causing the misfire. This could be related to ignition, fuel delivery, or other engine components.
  2. Check Spark Plugs and Ignition Components: Inspect and replace the spark plugs and ignition components, such as the ignition coil and spark plug wires, if they are worn or damaged.
  3. Check Fuel System: Ensure that the fuel injector for cylinder 5 is functioning correctly. It should provide the right amount of fuel to the cylinder.
  4. Examine Vacuum Leaks: Vacuum leaks can also cause misfires. Check for vacuum leaks in the intake manifold or vacuum hoses.
  5. Perform a Compression Test: Low compression in cylinder 5 could lead to a misfire. Perform a compression test to check the compression levels in all cylinders.
  6. Consider Other Sensors: Sometimes, faulty sensors like the crankshaft position sensor or camshaft position sensor can also cause misfires. These sensors help the engine's control module determine the correct timing for fuel injection and spark.
  7. Professional Diagnosis: If you're unable to identify and fix the issue on your own, it's advisable to seek the help of a qualified mechanic or technician. They can perform a comprehensive diagnostic check to pinpoint the problem accurately.
A misfire can lead to various engine performance issues and potentially dangerous situations, so it's essential to address it promptly. Ignoring a misfire can also cause damage to other engine components over time.
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Sep 03, 2023 • Cars & Trucks
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Disconnecting your Ford Battery can lead to Erratic engine behavior, loss of codes, and radio presets
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Dec 30, 2010 • Ford Cars & Trucks
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so I broke my indicator switch and light switch got a second hand 1 put it on but once I connect the battery the horn sounds continuously?
Hello,

If you've recently replaced your indicator switch and light switch with a second-hand one and now your horn is sounding continuously when you connect the battery, there could be a few potential reasons for this issue:

  1. Wiring Issue: Double-check the wiring connections for the indicator switch and light switch. Ensure that all wires are correctly connected to their respective terminals. A loose or incorrect connection could be causing a short circuit, which might trigger the horn.
  2. Faulty Switch: The second-hand switch you obtained might be faulty or damaged. It's possible that there's an internal issue within the switch itself, causing it to send a constant signal to the horn.
  3. Short Circuit: It's possible that during the installation process, a wire got pinched or damaged, creating a short circuit. This could lead to continuous power being supplied to the horn circuit.
  4. Grounding Issue: Check the grounding of the switches and the horn. Poor grounding can lead to erratic behavior in electrical systems.
  5. Compatibility: Ensure that the second-hand switch is compatible with your vehicle's make and model. Different vehicles might have variations in wiring and electrical systems.

Here are a few steps you can take to troubleshoot and address the issue:

  1. Disconnect Battery: Disconnect the battery to stop the continuous horn sound and prevent any further electrical issues.
  2. Inspect Wiring: Carefully inspect the wiring connections for any signs of damage, loose connections, or incorrect connections. Make sure that each wire is connected to the correct terminal on the switches.
  3. Check Switch Functionality: Test the second-hand switch separately before connecting it to your vehicle. Verify that it functions correctly and doesn't cause any issues when operated.
  4. Test Horn Circuit: Test the horn circuit by disconnecting the wires from the horn itself. If the horn stops sounding, then the issue is likely related to the wiring or the switch. If the horn continues to sound, the problem might be in the horn relay or elsewhere in the electrical system.
  5. Professional Help: If you're unable to identify and resolve the issue, consider seeking assistance from a professional mechanic or an automotive electrician. They have the expertise to diagnose and fix electrical problems effectively.
It's important to address electrical issues promptly to avoid potential damage to your vehicle's electrical system and ensure safe operation.
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Aug 11, 2023 • Ford Cars & Trucks
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1993 ford e350 econoline 5.8 liter, has no power but battery is good 12.9 volts
If your 1993 Ford E-350 Econoline with a 5.8-liter engine is experiencing a lack of power even though the battery voltage is good, there could be several potential issues to consider:
  1. Fuel Delivery Issues: A clogged fuel filter, failing fuel pump, or fuel injector problems can all result in insufficient fuel reaching the engine, leading to a lack of power.
  2. Ignition System Problems: If the ignition system components such as spark plugs, ignition coils, or ignition control module are malfunctioning, it can cause poor engine performance and reduced power.
  3. Exhaust Restrictions: A clogged catalytic converter or exhaust system can limit the engine's ability to expel exhaust gases, leading to decreased power output.
  4. Air Intake Blockages: An obstructed air filter or intake manifold can limit the amount of air entering the engine, causing poor combustion and reduced power.
  5. Vacuum Leaks: Leaks in the vacuum lines or intake manifold can disrupt the air-fuel mixture and negatively impact engine performance.
  6. Sensor Issues: Malfunctioning sensors such as the Mass Air Flow (MAF) sensor or Oxygen (O2) sensor can lead to incorrect fuel-air mixture and power loss.
  7. Timing and Distributor Problems: Incorrect ignition timing or issues with the distributor can affect engine performance and power output.
  8. Engine Compression: If the engine's compression is low due to worn piston rings or cylinder head issues, it can lead to reduced power.
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Aug 09, 2023 • Ford Cars & Trucks
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how to reset the settings back to ford tempo 89 after battery disconnect...dumb dumb me after replacing a belt tentioner assembly on my 89 ford tempo with 99k on it,io removed the positive lead to the battery and it took me 2 days to replace the part ie belt tentioner,someone told me driving it will reset everything back to normal but i been driving it for 3 days and its not resetting stalls at stop lugs down in park i know thats the issue but how long will it take it drives fine otherwise... thanks mark
From my experiance, your ok, disconnecting the battery on that year car was common practise to clear computor codes, sound to me like the tork converter
lock out selonoid has gone bad, I don't remember how to test them, but if I can remember the symptoms, stalling at stopes, ruff idle in gear, slow pick up from a stop. yep that's it.,
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Oct 10, 2011 • 1989 Ford Tempo
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