Brake issue - Dodge Cummins Diesel Forum
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post #1 of 6 (permalink) Old 06-04-2019, 03:08 PM Thread Starter
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Brake issue

I have a 1991 w250 and my brakes take a lot to start working. I have to push almost all the way to the ground to get it to a slowing stop. If I push it any farther it will come to a sliding hault but that’s it. Does anyone know what the issue may be.

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post #2 of 6 (permalink) Old 06-04-2019, 04:20 PM
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Have you checked your vacuum after the booster in the little line that goes to the black box behind the left hood hinge, unplug it from there and put a gauge in there. It should be around 20 to 26 hg's.

84 K5 Blazer 97 12v, 47re with E-TransControl, Dodge Dana 60 with free spin hubs, Dana 70, B&M Mega shifter

96 F350 SC dually zf5, 4x4, 92 Cummins, THD 5x12's, THD fuel pin, THD HVLP with adjustable fuel pressure mod, WM, h1c 60/60/12cm WG wired
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post #3 of 6 (permalink) Old 06-04-2019, 04:31 PM Thread Starter
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Originally Posted by 9297oldram View Post
Have you checked your vacuum after the booster in the little line that goes to the black box behind the left hood hinge, unplug it from there and put a gauge in there. It should be around 20 to 26 hg's.
Will try thanks.
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post #4 of 6 (permalink) Old 06-11-2019, 06:50 PM
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Did you figure out the problem?

84 K5 Blazer 97 12v, 47re with E-TransControl, Dodge Dana 60 with free spin hubs, Dana 70, B&M Mega shifter

96 F350 SC dually zf5, 4x4, 92 Cummins, THD 5x12's, THD fuel pin, THD HVLP with adjustable fuel pressure mod, WM, h1c 60/60/12cm WG wired
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post #5 of 6 (permalink) Old 06-11-2019, 10:46 PM Thread Starter
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[QUOTE=9297oldram;29004737]Did you figure out the problem?[/QUOTE

Have yet to get to. What’s the gauge exactly called and am I able to just find it on amazon or Napa or where.
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post #6 of 6 (permalink) Old 06-12-2019, 07:31 AM
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Any auto parts store should have one they are called vacuum/fuel pump test gauge.

I just Googled it and Harbor Freight has them also.

84 K5 Blazer 97 12v, 47re with E-TransControl, Dodge Dana 60 with free spin hubs, Dana 70, B&M Mega shifter

96 F350 SC dually zf5, 4x4, 92 Cummins, THD 5x12's, THD fuel pin, THD HVLP with adjustable fuel pressure mod, WM, h1c 60/60/12cm WG wired

Last edited by 9297oldram; 06-12-2019 at 07:34 AM.
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