Power steering pump squawking - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Murphy IRE · 08-21-2012, 10:21 AM

OK, I just installed a Hydraulic brake booster. So I drained and flushed the system. When I turn the wheel and/or apply the brakes. I get this loud squawking noise. There is also a fibration in the wheel or pedal, depending on what I'm using. Do I need to bleed or adjust the system? Or is it a sign that the old pump is struggling with the added load? Thanks in advance.

hugger6933 · 08-21-2012, 11:43 AM

Sounds like the pump is cavitating or pumpimg air. crank the truck turn the wheels all the way to one side and then shut it off and then fill. if that does'nt work after a few tries, jack the front wheels off the ground and rotate from lock to lock this time with the engine off do that several times then check the flid level. Go back over the lines and make sure the fittings are not positioned so that you could have air trapped somewhere. Jim

Tutt · 08-21-2012, 02:18 PM

hydroboost seems to make it harder to bleed the system. i have found that it helps to disconct the coil and spin the engine some with the starter. this will pump some fluid through the system without the pump cavitating and making the foam worse.

Murphy IRE · 08-23-2012, 06:25 PM

Tutt - "i have found that it helps to disconct the coil and spin the engine some with the starter". The coil??? I'm a rookie, do you mean loosen the HP side on the hydraulic brake? The HP line leaves the pump and goes into the brake system and the HP goes to the Steering pump. There is a by-pass hose on the return too!

oklalawnboy · 08-23-2012, 11:13 PM

Is the belt good and tight? It could be slipping under a load. The coil is what the center tower of the distributor cap wire goes too.

Murphy IRE · 08-24-2012, 11:37 PM

OK, DUH the coil! I thought there was something on the pump, you were calling the coil. The belt seems tight, but i"ll check it. It's not a losse belt squeek.

Frkypunk70 · 08-25-2012, 12:01 AM

I think he means the coil that you get your spark from...if you disconnect it, the engine won't start up....you will just be bumping it over. Hense less foaming (which is air in the power steering) .....I think that what he meant
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Murphy IRE · 08-25-2012, 10:05 PM

I cranked it over and over. I didn't set the choke and didn't give it any gas. I still have the Squawk (Not squweel). i will get the wheels back on tomorrow and see what's up.

08-21-2012, 10:21 AM	#1
Murphy IRE Registered User Join Date: Oct 2009 Location: South Denver Metro, CO Posts: 385	Power steering pump squawking OK, I just installed a Hydraulic brake booster. So I drained and flushed the system. When I turn the wheel and/or apply the brakes. I get this loud squawking noise. There is also a fibration in the wheel or pedal, depending on what I'm using. Do I need to bleed or adjust the system? Or is it a sign that the old pump is struggling with the added load? Thanks in advance.

08-21-2012, 11:43 AM	#2
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,280	Re: Power steering pump squawking Sounds like the pump is cavitating or pumpimg air. crank the truck turn the wheels all the way to one side and then shut it off and then fill. if that does'nt work after a few tries, jack the front wheels off the ground and rotate from lock to lock this time with the engine off do that several times then check the flid level. Go back over the lines and make sure the fittings are not positioned so that you could have air trapped somewhere. Jim

08-21-2012, 02:18 PM	#3
Tutt Registered User Join Date: Dec 2005 Location: Houston TX Posts: 77	Re: Power steering pump squawking hydroboost seems to make it harder to bleed the system. i have found that it helps to disconct the coil and spin the engine some with the starter. this will pump some fluid through the system without the pump cavitating and making the foam worse.

08-23-2012, 06:25 PM	#4
Murphy IRE Registered User Join Date: Oct 2009 Location: South Denver Metro, CO Posts: 385	Re: Power steering pump squawking Tutt - "i have found that it helps to disconct the coil and spin the engine some with the starter". The coil??? I'm a rookie, do you mean loosen the HP side on the hydraulic brake? The HP line leaves the pump and goes into the brake system and the HP goes to the Steering pump. There is a by-pass hose on the return too!

08-23-2012, 11:13 PM	#5
oklalawnboy Registered User Join Date: Jan 2012 Location: Glencoe Alabama Posts: 510	Re: Power steering pump squawking Is the belt good and tight? It could be slipping under a load. The coil is what the center tower of the distributor cap wire goes too. __________________ 72 Cheyenne super 10 08 3500 HD 4dr dually 12 ford flex (wifes ride) 76 Monte Carlo 83 Chevy short wide Silverado 96 Mazda Miata, 2000 Allegro Bus

08-24-2012, 11:37 PM	#6
Murphy IRE Registered User Join Date: Oct 2009 Location: South Denver Metro, CO Posts: 385	Re: Power steering pump squawking OK, DUH the coil! I thought there was something on the pump, you were calling the coil. The belt seems tight, but i"ll check it. It's not a losse belt squeek.

08-25-2012, 12:01 AM	#7
Frkypunk70 Registered User Join Date: Mar 2010 Location: Scranton,Pa Posts: 423	Re: Power steering pump squawking I think he means the coil that you get your spark from...if you disconnect it, the engine won't start up....you will just be bumping it over. Hense less foaming (which is air in the power steering) .....I think that what he meant Posted via Mobile Device Posted via Mobile Device __________________ "When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car. "

08-25-2012, 10:05 PM	#8
Murphy IRE Registered User Join Date: Oct 2009 Location: South Denver Metro, CO Posts: 385	Re: Power steering pump squawking I cranked it over and over. I didn't set the choke and didn't give it any gas. I still have the Squawk (Not squweel). i will get the wheels back on tomorrow and see what's up.



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