Uh, you must not be familiar with the 7.3 motor because the vacuum pump most definitely has to do with the brakes (pre 1999). You ought to know what you're talking about before sounding so dismissive. See how that works ?
vacuum pump keeps breaking
I have a 2002 E350 Super Duty 7.3 PSD, and have a recurring problem with vacuum pumps. I am now on my fourth pump in a year and a half. I have checked all related components, brake booster, master cylinder, pads, discs, and can find no other problems in the system. Can the pumps be overworked? It seems that they work continuously anyway but I don"t know. Another, probably related problem, is a brake warning light that goes on and off for reasons I can't figure. Any help would be greatly appreciated, thank you.
PS. I know that the brake light goes on when vacuum gets low, but it also goes on when the vacuum is fine and a new pump has been installed.
PS. I know that the brake light goes on when vacuum gets low, but it also goes on when the vacuum is fine and a new pump has been installed.
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This guy doesn't know the 7.3The vacuum pump on 7.3L's has nothing to do with the brakes. It's a small electric pump that supplies vacuum to the HVAC controls and the auto locking hubs.
The brake booster is hydraulically powered by the Power Steering pump.
You need to be a bit more specific on your problem in order to get help.
1 - 2 of 11 Posts
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