Ford Brakes/Suspension :: Power Steering Pump Boils Fluid
Aug 5, 2012
I am trying to use a ford pump to power a Hydro-boost off a diesel pickup, took everything off same truck. Started it up, ran ok for 5 mins & PS pump fluid boils. No PS box in the system, just the Hydro. Seems like the fluid is not getting out of the pump & circulating either. I figure a blocked pump discharge or blockage in the Hydro. I can shoot air backwards thru the hydro, too hot to touch the pressure side. I had the outlet nut off the pump, could I have blocked the discharge when I put it back?
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I just bought my first 79 Bronco knowing the steering had issues. I just replaced the pump but it did not fix the problem.
When running, if I rev the motor a bit I can turn it to the right but the pump growls. When I try to turn it back to the left it is hard, like I do not have a pump at all.
It seems to build pressure when I turn the wheel as as soon as I shut it of it blows the cap off. Am I looking at a new steering box or might it be the lines? Nothing appears to be crimped.
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AC compressor clutch bearings went bad (went AWAY, actually) and the serp. belt snapped. New clutch went on just fine and works great, but after about 20 miles the power steering pump pulley cracked and started spinning on the shaft and the new serp belt jumped half off and ate itself.
So last night I finished putting in a new pump and pulley. Flushed out the lines with new fluid, manually bled the new pump and then followed the bleeding procedure in Haynes carefully. All looks good. Pump spins freely and runs very quiet. No noise or hesitation lock-to-lock. No leaks. Fluid level holds steady right at the half-way mark on the reservoir.
Sitting in my yard it turns smooth and very easy all the way through the whole range.
BUT, out on the street I'm getting very frequent but random lock-up where the wheel doesn't want to turn AT ALL (I'm a big guy and it's HARD to turn)! And then I'll jiggle it a bit and it's smooth as silk again. It's done it while moving fast, moving slow, and standing still. I drove about 30 miles testing it out and it seems completely random when it will lock up, but it did it about six times in half an hour. And when I got home and parked? Perfect, smooth steering.
What could be doing this? Prior to the troubles last week, steering was perfect, so I don't think the steering box is bad. (Could be, of course...).
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Yesterday while driving, i lost all power steering and power brakes (you would automatically think Booster). I pulled over, popped the hood and fluid was spewing from behind the power steering pump somewhere. I limped the truck home about 20 miles. I checked brake fluid and it was full. checked power steering fluid and it appeared to be empty. Yet when i added fluid it took less than a half quart. I started the vehicle to pressurize the pump and find the leak. Yet the pump never pumped any fluid. (one would thing pump was out) I am baffled as to if the pump went out, why fluid loss? If the booster was out, why do i still have brakes just without power assist? Andif a hose is blown, why such small fluid loss? I dont want to just start replacing parts till it get the right one
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Proud owner here of a '96 3.0L RWD Aerostar Utility Van with about 138k miles, and leaking power steering fluid. At this point I'm replacing fluid from zero every time I have to drive it which is about once a week. I've located the leak and it seems to be coming from the pump/reservoir around the pressure hose. The hose is loose as in i can move it around a bit, but from what I've read, this is normal and the hose is supposed to be like that. I figure that at this mileage, with so much air going through the pump, all the crazy squealing and whining it does even when full, at this point it probably makes sense to replace the whole pump while I'm in there, as opposed to just doing the reservoir. Anyway, I'm planning to do this in a couple of weeks, and have some questions...
1) The pump - I've read on this forum that the best way to go on brand of the pump is Motorcraft.
2) Hoses - I'd like to replace the hoses coming out of the pump while I have this thing all taken apart, but I'm not exactly sure what parts to get. I know one is the pressure and one is the return, but there are variations of each based on the research I've done. The parts on the Napa site have different descriptions like "with switch port", "without switch port" "56in hose" "26in hose", and so on. Which ones I need, specifically the ones connecting directly to the pump? I havent been able to find anything in my research online, in Haynes, or Chiltons manuals.
3) Washers - Whether or not I replace the hoses, should I replace the washers at the connection point? Chilton's seems to recommend replacing them. Will they come with the new pump?
My local auto parts shop has the pulley remover/installer for me to rent so I've already got that squared away. I'm pretty sure I've covered all of my bases otherwise.
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Across Internet is lot of examples of using pump, usually drill pump or vacuum. It seam to me that drill pump would work good for that job. Pump that attach to battery have limited amount of power and vacuum pump is manual. Look like a excellent device for transmission fluid change. Clearly no drain screw at pan. I do not think I'm fan of disconnecting return line and live empty tranny.
For example here : [URL] .....
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I'd like to convert my power steering to manual. I've done this to my Mustang, but never a vehicle this long and heavy. Looking for impressions of the results. Also, any special tools that may be required for the swap.
My truck is a 1987 F-150 4x2 extended-cab long-bed with a 351w and C6.
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I have a 74 f100 4x4 with manual steering I would like to convert it over to power steering but every power gear box I have found the holes are in a different spot than the manual box is there anything out there that will match up or will I have to weld a plate on and drill new holes...
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My 97F250, 7.3 diesel, 4WD has an intermittent steering issue. When I come out of a turn, it doesn't want to come out of the turn all the way. It will keep pulling one way, and I have to jerk the steering wheel in opposite direction, and sometimes the truck then over corrects quickly the other direction. Mechanic said front end looks good, so he replace the power steering pump. That didn't work...
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I would like to add power steering to the truck. What I need to do and what parts are required. Could a 65F100 come from the factory with power steering?
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Driving home from movies tonight, I lost power steering and power brakes and the pump started growling. Looked in the reservoir and it was all foamed up. Within the last 20k mi I have flushed the system and refilled with power steering fluid. No apparent leaks at this time. And happened like someone flipped a switch. Fine one turn, nothing the next. What are the chances this is a fluid issue and not a mechanical one? Start with flushing system and adding Mercon V? Or is it likely pump is damaged?
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A few days ago I had a big PS fluid leak. Turned out the return line had been sliced a bit. I had to drive it for a couple days before I could get around to fixing it. The steering is still stiff and the pump whines. Is this an indicator that I need to replace the pump?
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I have a lexus rx 330. Pump started making noise and low on fluid. We replaced all the belts and new pump. After installing new pump it was leaking from fill cup cap when driving also making a lot of noise on cold start. Mechanic said new pump was bad so we put in another one. Car ran fine as soon as we put it in and bleed good. Following morning again a lot of noise on cold start and noise goes away about 10 minutes but again small amount of fluid leaking from cap on fill cup. I replaced the rubber ring on cap to get a tight seal but again nothing.
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Major screw up. Added steering fluid to brakes. Drove the car for about 300 miles. Car actually over-heated. Discovered the mistake after. Bleed brakes and added correct fluid. Not heating up now, but only bled the brakes one time. This is on my grandsons 91 Dynasty. Now worried the brakes are going to just go out.
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1984 f150 with a new master cylinder, new brake booster, and new fluid. I did use dot 4 fluid (as opposed to dot 3) and bled out the system. This was about 9-10 months ago.
Just recently I noticed my brake pedal was going further down before I stopped; but I stopped. Since I switch between my car and truck a lot I thought this may have just been my imagination. What finally clued me in was when I couldn't stop as easily that something was obviously wrong.
Checked the master cylinder and the front reservoir was obviously empty. I couldn't find an obvious leak so took it to a shop. The added more fluid, bled the brakes and said its fine. They couldn't find a leak either.
Sooooo, any thoughts as to where my front brake fluid went? I'm assuming they took the wheels off and looked at the calipers too but I'm not sure I'll find out when I go pick it up in an hour. Could the dot 4 fluid have something to do with it? The brake lines, mast cyl, booster, proportioning valve and calipers are all bone dry. No obvious fluid leaks. Soooo now what.
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My car is in the shop and has a leak at the Power Steering Pump. The rubber O-ring on the Power Steering Pump Solenoid Valve (p/n 4417030120) is leaking fluid. The Solenoid Valve is ok, just the Rubber O-ring is bad, but it looks like you have to buy a complete new Solenoid Valve to get the O-ring (a lotta bucks).
I did find a Lexus Power Steering Pump rebuild kit online at, but I can't see if it includes the solenoid valve o-ring or not. Have to replace their solenoid valve o-ring?
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I took my 2010 F-150 for brake job and ended up with brake fluid in intake!! How that happened?
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I have never noticed before but today I noticed the fluid inside the brake reservoir was bubbling or splashing around , whichever.What would cause this. I did just finish up on an intake manifold gasket replacement job. Drove for the first time today and that's when i noticed the 'bubbles'.
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1968 C-850 Super Duty. Cannot find the brake fluid reservoir on this Hahn Firetruck.
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So I have multiple issues that all seem to stem from a power steering leak. According to the dealership, the PS pump is leaking fluid onto the serpentine and timing belts causing them to swell. This in turn has something to do with the AC compressor not working but they wouldn't give me details. When I looked at the clutch wheels on the AC compressor, there seems to be a good amount of rust in between the two wheels. I can't say that I trust the dealership because the original owner was bought out by a larger group that is known to just say "replace everything". I usually do most of my own work on my 95 Tacoma, so I'm no stranger to import v6 motors.
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My driver side caliper will not bleed fluid, is it safe to say that the caliper needs replacing.
2000 f 150 4.2 v6 232,000 miles
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