Spongy Brakes after cruise control pressure switch change - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 03-03-2014, 04:15 AM Thread Starter
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Spongy Brakes after cruise control pressure switch change

My issue started out that I lost cruise control on my 2008 F250 CCSB. Looked and sure enough had a DTC(P0703 BRAKE SWITCH B ). Easy enough right ? Went to dealer and purchased the new switch (SW-6349(9F924)) and cruise works just like it should but now I have a new issue brakes are WAY spongy. No fluid was lost, not even a drop, when changing the out the bad switch.

Any ideas ? These spongy brakes are driving me CRAZY !!!!! Could air have migrated into the system ? Do you think bleeding will fix the problem ? Bleed all four lines or just the front or rear ?

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post #2 of 4 Old 03-03-2014, 06:48 AM
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I would bleed all four calipers. Its fairly easy and good to change out the brake fluid anyway. I did it last year and it made a nice difference.

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #3 of 4 Old 03-03-2014, 02:01 PM Thread Starter
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Originally Posted by 04hdfatboy View Post
I would bleed all four calipers. Its fairly easy and good to change out the brake fluid anyway. I did it last year and it made a nice difference.
What is the recommended fluid ?
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post #4 of 4 Old 03-03-2014, 02:08 PM
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I used the Valvoline dot 3 brake fluid.

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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