Abs Light Wobbly Speedo - Ranger-Forums - The Ultimate Ford Ranger Resource


Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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Old 07-23-2007
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Abs Light Wobbly Speedo

2000 Ford Ranger 4cyl. 5speed, Standard Pickup.

I Replaced Speed Sensor In Rear, Followed Wires From Everywhere, Checked Tail-lights

When I Brake My Speedometer Shuts Off, When I Let Off The Break The Speedometer Works Fine. Abs Light Is On.

When I Unhooked The Brake Sensor (brake Sensor On Brake Petal) The Speedometer Works Fine.

Can Anyone Help, Thanks!!!
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Old 07-23-2007
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sounds like you need to replace the switch on the pedal
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Old 07-23-2007
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But I Cleaned All The Connections And Cleaned All The Leads.
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Old 07-23-2007
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the switch is bad on the inside not the outside
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Old 07-23-2007
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Another thing to check:

Open up the large 40-pin connector under the truck directly below the driver seat. Over time, this connector has a nasty habit of filling with water which causes crossed circuits and pin corrosion. The truck may exhibit a wide variety of symptoms involving circuits in the rear of the truck, none of them good.

Remove any water, clean the pins and reassemble with dielectric grease inside. This is good preventative maintenance on any 99~2003 Ranger.
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Old 07-24-2007
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wheres this harness on the 04+ rangers? cause i dont recall a harness being there when i pulled my seats
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Old 07-24-2007
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Quote:
Originally Posted by FMD
wheres this harness on the 04+ rangers? cause i dont recall a harness being there when i pulled my seats
The Ranger electrical system was reengineered in 2004 and the large connector under the seat was eliminated. It was replaced by 2 smaller connectors: a square one from the body harness and a round connector from the transmssion.
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