Noisy Power Steering
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Senior User
Joined: Jul 2014
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From: London,UK
Noisy Power Steering
Guys, is it possible to buy a PS pump that stays reasonably quiet?
The pump that was on my 69 F100 truck when I got it a few years ago (one for an older model with a fixing on the rear of the case) leaked from everywhere but at least it was pretty quiet. I replaced it with a re-manufactured (Cardone) correct TRW/Thomson pump, but this became really noisy after a few weeks. I posted about this here..
https://www.ford-trucks.com/forums/1...ring-pump.html
I thought I'd either just got a bad pump, or possibly hadn't run it in properly, so replaced with another re-manufactured pump, this time from ACDelco. This one was great at first, but after several months has now started making that same loud whining noise....pretty annoying!!
Could this just be a second 'bad' pump?!? If so then I'll hope for 3rd time lucky...but don't want to waste my time and money if they all do this. Also, I notice that new as well as re-manufactured pumps are available...maybe that's the better option?
The pump that was on my 69 F100 truck when I got it a few years ago (one for an older model with a fixing on the rear of the case) leaked from everywhere but at least it was pretty quiet. I replaced it with a re-manufactured (Cardone) correct TRW/Thomson pump, but this became really noisy after a few weeks. I posted about this here..
https://www.ford-trucks.com/forums/1...ring-pump.html
I thought I'd either just got a bad pump, or possibly hadn't run it in properly, so replaced with another re-manufactured pump, this time from ACDelco. This one was great at first, but after several months has now started making that same loud whining noise....pretty annoying!!
Could this just be a second 'bad' pump?!? If so then I'll hope for 3rd time lucky...but don't want to waste my time and money if they all do this. Also, I notice that new as well as re-manufactured pumps are available...maybe that's the better option?
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
I am not much on snake oils but I can recommend this product as rock solid. Lucas Oil Power Steering Stop Leak. Put about half of a small bottle should start working very quick. Made me a believer.
John
John
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Senior User
Joined: Jul 2014
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From: London,UK
@John - thanks, but just to be clear...this one isn't leaking at all...it's just NOISY!! I guess the Stop Leak will quieten it down too?
@Gary - yes, I primed it very carefully and the fluid level (Type F) has never been low, plus it was quiet for a few months...if it was a priming issue I guess the damage would have been done when I first fitted it and it would have been noisy from the start.
@Gary - yes, I primed it very carefully and the fluid level (Type F) has never been low, plus it was quiet for a few months...if it was a priming issue I guess the damage would have been done when I first fitted it and it would have been noisy from the start.
Lead Driver
Joined: Aug 2003
Posts: 7,592
Likes: 10
From: **** hole San Jose ca.
A lot of people have poor driving habits.
1. Like having your foot on the brake pedal while turning the steering wheel puts an over load bind on your whole system. The wheels needs to have a little movement while at a dead stop turning.
Women our great for this foot on the brake hard turning the wheel. If your standing out side of a vehicle while someone has the brakes locked up turning the steering wheel you can hear the whole steering under a strain while the steering wheel is being turned.
This slowly causes damage to all steering components an many times the pump will start to whine when under a heavy load.
Like manual steering it's much easier to turn the steering wheel while the vehicle moving a little same with PS.
Orich
1. Like having your foot on the brake pedal while turning the steering wheel puts an over load bind on your whole system. The wheels needs to have a little movement while at a dead stop turning.
Women our great for this foot on the brake hard turning the wheel. If your standing out side of a vehicle while someone has the brakes locked up turning the steering wheel you can hear the whole steering under a strain while the steering wheel is being turned.
This slowly causes damage to all steering components an many times the pump will start to whine when under a heavy load.
Like manual steering it's much easier to turn the steering wheel while the vehicle moving a little same with PS.
Orich
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Senior User
Joined: Jul 2014
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From: London,UK
Orich, I get you...but something i do try and avoid. I must admit that the steering on my truck does seem to struggle at low speed, like when manoeuvring into a parking spot and sometimes slows the engine down so much that it starts to shudder.
I wonder, could my PS pulley be too big a diameter? I guess a smaller one would be like changing into a lower gear and maybe the steering would struggle less to turn the wheels. The tires are wider than original too, so harder to turn I guess.
I wonder, could my PS pulley be too big a diameter? I guess a smaller one would be like changing into a lower gear and maybe the steering would struggle less to turn the wheels. The tires are wider than original too, so harder to turn I guess.
Lead Driver
Joined: Aug 2003
Posts: 7,592
Likes: 10
From: **** hole San Jose ca.
Aw yeah wider tires do grip the pavement while turning just keep them aired up good.
I know their no easy way to check line pressure as it may be on the low side for a smooth turn at low rpm's.
Orich
I know their no easy way to check line pressure as it may be on the low side for a smooth turn at low rpm's.
Orich
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From: London,UK
Just quickly measured my pulley diameters (outer edge to outer edge) and crank pulley is approx. 7 7/8" and the PS is about 4 3/4". Sound about right or could the ratio be out?
https://1drv.ms/i/s!AhwQvBFR4krEql-2xgFskHjoCgeH
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Hotshot
Joined: Mar 2013
Posts: 14,255
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From: Phoenix, Az.
Sounds to me like your king pins are freezing up and not wanting to allow the spindles to pivot. And the pump is forcing them to. Putting added strain on the pump. Who knows the last time they were greased? Jack up the front end and see if you can move the steering with the engine off. And get out a grease gun and see if you can get the king pins to accept some grease.
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Senior User
Joined: Jul 2014
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From: London,UK
Hi, by coincidence I had the front jacked up over the weekend as I replaced a couple of freeze plugs and also checked my wheel bearings. The steering turns fine with the engine off. But I will still see if I can get any grease into the king pins.
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