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Old 08-06-2013, 07:35 PM   #1 (permalink)
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Exclamation No power steering all of a sudden

Hey guys, did some driving today, everything was fine, came home. Truck sat for awhile than went and picked up a buddy 4 blocks away and came back to my house to hook up my boat. Got it hooked up and drove about 2,3 blocks to th gas station and all of a sudden to power steering. But when rolling can turn pretty smooth ( I'm thinkin mainly because I'm rolling) but when I press brakes and turn it gets much harder, 2 hands needed. Wondering what I could do to diagnose, fix the problem. Thanks guys! Yes PS fluid is full, the truck is an 06 one tonne
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Old 08-06-2013, 07:54 PM   #2 (permalink)
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Bad pump ?
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Old 08-06-2013, 09:00 PM   #3 (permalink)
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Not sure. Just put in fresh new liquid and bleed it the best I could. No difference. Seems to be some squish in my brake pedal to. Wondering if it could be the booster?
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Old 08-06-2013, 09:13 PM   #4 (permalink)
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If you have no leaks, it's most likely your PS pump. It could be your hydraboost as well but that is far far less common. The two systems run on a loop (aka your pump pressurizes the steering box and the booster) so I would start with the more obvious choice of the pump and work your way back if you are continuing to have issues.

If it's still on the factory pump, 7 years is a long time so I'm not surprised to see it go. Luckily, new pumps around $50-60 and it's a pretty straight forward job to swap them out. Make sure you have some u-joints/knuckles for your sockets and a puller to take off the pulley from the old pump to swap onto the new one. Other than that, it's not a bad job. Throw in a couple beers too to reward yourself
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Old 08-06-2013, 09:45 PM   #5 (permalink)
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Sounds good. Would have thought it would be more than. FYI I just changed my box about 2 weeks ago, and the steering was amazing. Super tight and light to turn the wheel. My friends were all jealous saying best steering dodge. But I was just looking in my dodge Manuel and it says to use ATF +4 .... I used power steering fluid. I just did a complete flush and replaced with mopar +4 ATF fluid and still the same. Could have using power steering fluid have caused the problem? And would the ps pump cause me to have a squish in the brake pedal?
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Old 08-06-2013, 09:53 PM   #6 (permalink)
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Eeek, PS fluid and not ATF +4 is a big no-no. That very well could be the root of your problem. There is no turning around from the potential damage it will have done. That in mind, the PS pump would be the issue.

Yes, a weak or broke PS pump will make the brakes become squishy as the PS pump is tied into the booster and that's where it receives its pressure.

Just curious, what box did you upgrade to? Some of the Mopar upgrade boxes randomly have issues with older pumps. The new boxes like to have a lot of pressure and flow built up for them to work best and it may have actually been the thing that wore down your pump enough as it would have been stressed more than usual.

Double check all of your connections and make sure you're not leaking anywhere too. A leaky hose can cause the same issues but the signs of it being incorrect are much more obvious... aka - PS fluid barfing everywhere.
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Last edited by Craig@StraptPerformance; 08-06-2013 at 09:56 PM.
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Old 08-06-2013, 10:13 PM   #7 (permalink)
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Wow thankyou very much. Not very often you find someone very knowledgable. Thankyou again. An unfortunately it wasn't a planned upgrade and being where I live (Canada) I'm weeks away from getting a nice performance one. So all I could do was a napa reman, but with that said, the steering was great. Super tight and light to turn. And stupid me, seeing replace with approved power steering fluid on the filler cap wasn't enough information for me to know to replace with ATF +4. But now I know. Can it be any atf+4? Or does it have to be mopar brand? I will be replacing ps pump tomoro when the shops open back up. And for my own knowledge the hydro boost is located behind the brake reservoir, where the power steering lines are going to. And as far as leaks there are None, nothing under my truck. I have noticed some around the filler cap on the Reservoir thought. Thankyou again
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Last edited by tyler-brown; 08-06-2013 at 10:16 PM. Reason: Forgot to mention something
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Old 08-06-2013, 10:18 PM   #8 (permalink)
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No worries mang, always glad to help!

Napa pump should work out just fine. We've used them on multiple trucks and they hold up well. If you see zero improvement with the pump, the box would be the next thing to look at. Luckily, Napa has a pretty solid return policy so they should take care of you on that if it comes down to it.

Yes, you can use any ATF +4.

Yes, the unit that the PS lines screw into thats attached to the firewall is your booster/hydraboost.
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Old 08-08-2013, 12:46 AM   #9 (permalink)
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That was the problem. Runnin good now! Thank fully wasn't the hydra boost. Pricy little units haha. Thanks for your help!
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Old 08-08-2013, 12:56 AM   #10 (permalink)
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Niiiiiice! Glad you're up and running.
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