Upfitter Switches causing M/C problem? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 08-26-2010, 11:32 AM Thread Starter
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Upfitter Switches causing M/C problem?

I bought an Upfitter switch kit off of ebay yeaterday and before I did so called my local dealer to try and get them to match the price, They wouldn't of course.

However, the dealer said that they have been seeing problems with the brake master cylinder and people having to replace them because they installed the upfitter switches. He would not go into more detail than that.

Anyone ever seen a problem like this before? or heard of it? I could maybe see if there was a switch hooked up to the braking system somehow??

Any way it just seems a bit strange to me.


Jon B
2010 F250 6.4L
6 Speed
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post #2 of 2 Old 08-28-2010, 04:12 PM
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Nope i bought mine off ebay and only have lights hooked up to them and no problems...

09 F250 SC/SB, 10inch Fabtech Susp., 38x15.5x20, 20inch Novakanes, Blackmaxx mini, AFE Stage 2, Doc/DPF delete, MRBP duals *sold*

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