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Technical Info: 2nd Gen 12 VALVE DRIVETRAIN Technical discussion of second generation (1994 - 1998) 12-valve engine and drivetrain questions, solutions and upgrades.
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  #1  
Old 01-21-2017
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cougar cougar is offline
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Question ABS and brake light

Got a little puzzle to figure out when I get back to the world. On the way into Anchorage to catch my flight to hell, my ABS and brake light came on when I hit the coast button on the cruise control to reduce speed. Brakes and ABS seemed to be working normally before and after. No time to do any trouble kind of shooting, had a flight to catch. Any Ideas on what to start looking at and for? I'll check for codes 1st thing. Not too long ago I replaced both rear brake calipers, everything has been working fine.
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Old 01-21-2017
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I don't know what was going on but if you're riding, the Brake & ABS lights come on and you hear the ABS pump motor running, pull the bottom wire connector on the ABS module, next to the master cylinder, so you don't burn up the pump and/or motor.
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Last edited by Clunk; 01-21-2017 at 07:31 PM..
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Old 01-22-2017
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That is part of the weird thing. Everything was working normally including the ABS system after the lights came on. My first reaction was to test the brakes to make sure I had them. A "plan B" stop is never fun. I was at freeway speed with a stop light ahead and my usual left turn. I got in the right turn lane instead. The lane was icy and I could hear the ABS pump doing its thing as I pumped the brakes hard to see how they would respond. Came to a stop as advertised. Wondering if one of the sensors got soaked?
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RIP 1991.5 1991.5- 8/14/2013
92 W250 Xcab 4X4, HD 47RH with Compushift, Scheid Lightning VE, GDS moded H1C/w 16cm, 7X010 DAP injectors, the usual gauges.
01 2500 Q cab 4X4, stage II auto, fresh VP-44, HX35, B T E and F gauges, FASS 95 adjustable.
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Old 01-22-2017
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cougar, it's just those gremlins in Alaska
Get outta there and come to the lower 48, the land of sunshine and BBCOD's
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Old 01-23-2017
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Could be as simple as the sensor on top of the pumpkin gone bad or has a collection of metal filings on it, or the connector came off.
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Old 01-27-2017
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When mine came on yesterday it had blown the right rear wheel cylinder.
It was several more stops before the pedal began to slowly fade under pressure.
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Last edited by smokediver; 01-27-2017 at 04:50 PM..
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Old 01-28-2017
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2 more weeks before I'll be able to look at it.
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RIP 1991.5 1991.5- 8/14/2013
92 W250 Xcab 4X4, HD 47RH with Compushift, Scheid Lightning VE, GDS moded H1C/w 16cm, 7X010 DAP injectors, the usual gauges.
01 2500 Q cab 4X4, stage II auto, fresh VP-44, HX35, B T E and F gauges, FASS 95 adjustable.
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Old 01-29-2017
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Quote:
Originally Posted by cougar View Post
2 more weeks before I'll be able to look at it.
Bring it down here and I can look at it today.
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'91.5 somewhat stock w-250 4x4 5sp Except for the EVIL twin turbos, K&N filter, two small shopping cart dents in right door, Monroe SENAS-TRAC rear shocks. cheap $35 air horns. KDP tabbed. South Bend clutch 13-1.25 Con O. Max stixs, 4" Rip Exhaust,No Muffler, Old Smokey fuel pin. EGR rear disc. Engine breathed on by Max.
My Black Cloud Is Back!...
2012 3500 crew cab Ram 6spd manual, 8' box
I'm just so tired of being tired
Now on facebook
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  #9  
Old 02-12-2017
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Well, it healed itself.
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RIP 1991.5 1991.5- 8/14/2013
92 W250 Xcab 4X4, HD 47RH with Compushift, Scheid Lightning VE, GDS moded H1C/w 16cm, 7X010 DAP injectors, the usual gauges.
01 2500 Q cab 4X4, stage II auto, fresh VP-44, HX35, B T E and F gauges, FASS 95 adjustable.
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  #10  
Old 02-12-2017
dieselfarmboy dieselfarmboy is offline
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Quote:
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Well, it healed itself.
Or the light burned out haha.
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