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Thread: Power steering rack, no power assist.

  1. #1
    Join Date
    May 2003
    Location
    Waterloo, IA
    Age
    64
    Posts
    4,464

    Power steering rack, no power assist.

    Boy, I haven't had to ask for help in a long time! On ProRauder, I have the factory original rack still, but there is no power assist. The pump and everything else is working because my hydro-boost is working. I was doing some reading and I believe my problem is that it is now more race car than street car, and I think there is no wiring that was left to hook up to the rack. There is no box behind the glove box anymore either and I think that controlled the air ride and the variable power assist.

    If there is no power signal (12V key on), am I correct that this is causing it to feel like there is no power assist?

    If I just run a +12V (key on) to the rack, will I get my power assist again?

    Thanks in advance!

  2. #2
    Join Date
    Jan 2003
    Location
    Near Knoxville TN
    Age
    67
    Posts
    10,717
    I think there are 2 electrical connections to the rack. I believe the solenoid on the driver's side is for the variable assist. I don't know what the connector on the passenger's side is for, it is a device in the hydraulic line. I thought it was a pressure sensor, but it could be another solenoid. Sorry I'm not much help but maybe it could steer you in the right direction.
    Thanks to Darrin @ BC Automotive:
    $1800 and it was worse than when he started!

    Brian (FordNut) FPG # 1458 of 7838
    03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
    then 476/410 D1SC ProCharged on stock block
    then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
    then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
    Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker

    03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
    03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
    04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
    01 F150 longbed
    01 F150 shortbed
    00 F150 4x4 stepside
    01 F150 4x4 7700
    68 Stang FB (70 351C 4V, 4 wheel discs, project car)

    Mods listed here (some items not current): FordNut's Mods

  3. #3
    Join Date
    May 2003
    Location
    Waterloo, IA
    Age
    64
    Posts
    4,464
    I found a PWM adapter on Amazon that the F100 guys are using. As soon as I get my back axle freshened I'll do a quick write-up of how I fixed it.

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