Before I turn it on
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it could have something to do with your brake system under the hood. may have something to do with your abs system too. could be your stock lift pump but since you say it is before the wait to start light is on probably not. mine makes a noise for a second, its sounds like its somethin to do with the brake system, sounds like an electric motor. (but its not the lift pump)
Last edited by TCdodge; 08-15-2009 at 02:38 PM.
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i dont think it could be from replacing them. i dont know to much about the brake system on these truck, there a little different form the 12v. I just know mine makes a noise and its around the master cylinder somewhere. have somebody turn the key on and off why you look under the hood and see if you can figure out where it is coming from. And the brakes.. did you replace the brake hoses that bolt on to the calipers? they will collapse and not let the brakes release very well (or sometimes not at all) but if you bought reman. calipers from oriellys (or anywhere for that matter) they may be bad. i went through three on the drivers side and two on the passanger side in three years on my old truck dodge. mine pulled to the right but i thought it was the brake hose, replaced it but it ended up being the caliper so i replaced it too. I had lifetime warranties on my calipers, that was nice