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Showing content with the highest reputation on 03/13/2025 in all areas
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[A proper] FSM-worthy explanation as always, slart, thank you!2 points
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The same sensor died in mine, started faulting out whenever it got wet. When I saw the price of a new one, I decided I didn't need ABS. Looks like the price has about doubled since then, holy crap.1 point
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I'm honestly not sure when ABS started in these, and whether it was a trim thing or a federal thing. The part numbers for the ABS valve block go back to '90, but it's not in the '90 manual. If yours has it, the valve block is under the truck, on the inside of the passenger's side frame rail, sorta under the passenger's seat area IIRC. Should be an aluminum casting with a bleeder, an electrical plug, and two brake lines going into it. The control computer for mine was under the driver's seat, but IIRC '92 (and earlier?) had it under the stereo. The sensor reads from the pinion flange on the rear axle. If yours doesn't have it, you're not missing much. All it does is release the rear brakes if it sees them lock up. There's no pulse action, no pump, no improved stopping distance. It's just trying to stop the rear end from stepping out and potentially rolling the truck. I guess if road conditions are bad enough to allow the rear brakes to lock, and the driver doesn't know to pump the pedal to regain control, then it's safer to nerf the rears, keep it straight, and take the hit in the crumple zone.1 point