brake master cylinder ?
What year is your truck?..
If it's up front/top threaded in, it's the brake pressure switch.. It's function is for criuse/speed control deactivation if equipped.. There's a safety recall for a variety of years (94-2002 F-150-550), and models for this switch, for possible overheat/burn problems..
Here's a portion of the recall/service advisory if it pertains to your truck..
SAFETY RECALL 05S28..
SUBJECT: Safety Recall 05S28 - Supplement #9
Certain 1994-1996 Model Year Bronco, 1994-2002 F-150 through F-550, 1997-2002 Expedition, 1998-2002 Navigator, 2002 Blackwood,1994-1996 E-150/250/350, 1996-2002 E-450, 2000-2002 Excursion, and 1998 Explorer and Mountaineer vehicles equipped with Speed Control
Speed Control System Modification
REASON FOR THIS RECALL
The underhood Speed Control Deactivation Switch (SCDS) may overheat, smoke, or burn, which could result in an underhood fire. The potential for a fire exists regardless of whether speed control is being used or the engine is running
If it's up front/top threaded in, it's the brake pressure switch.. It's function is for criuse/speed control deactivation if equipped.. There's a safety recall for a variety of years (94-2002 F-150-550), and models for this switch, for possible overheat/burn problems..
Here's a portion of the recall/service advisory if it pertains to your truck..
SAFETY RECALL 05S28..
SUBJECT: Safety Recall 05S28 - Supplement #9
Certain 1994-1996 Model Year Bronco, 1994-2002 F-150 through F-550, 1997-2002 Expedition, 1998-2002 Navigator, 2002 Blackwood,1994-1996 E-150/250/350, 1996-2002 E-450, 2000-2002 Excursion, and 1998 Explorer and Mountaineer vehicles equipped with Speed Control
Speed Control System Modification
REASON FOR THIS RECALL
The underhood Speed Control Deactivation Switch (SCDS) may overheat, smoke, or burn, which could result in an underhood fire. The potential for a fire exists regardless of whether speed control is being used or the engine is running
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thebran127
Ford Ranger
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Dec 6, 2018 08:56 AM




