hydroboost pump change - Pirate4x4.Com : 4x4 and Off-Road Forum

mÄrK · 02-04-2005, 08:48 PM

I have an 82 burb with hyrdoboost and my pump had been squeeling for a while now so I replaced it with a junkyard pump.. Well that one worked fine and first and now its squeeling when I turn. Is there possibly another prob or is this pump toast too? and do I need to bleed lines and do something special since I have changed pumps?

yettiatcpg · 02-05-2005, 07:12 AM

what did you use for fluid?
if it was trans fluid then you will need to remove it and use GM power steering fluid. it has better non foaming agent and will prevent squeeling & howling.

mÄrK · 02-05-2005, 08:07 AM

I used a cheap no name power steering fluid. I'll drain it out and try the GM stuff. Thanks!

yettiatcpg · 02-05-2005, 08:28 AM

one more thing, don't forget to dump the Hydroboosters acumulator. with the engine OFF, pump the brake pedel about 10 times, that way you will get any hidden oil out.

6.2Blazer · 02-07-2005, 09:35 AM

Are you sure it's not simply the belt squealing? On my hydroboot setup I have to go retighten the belt a couple of times a year.

Smash-K20 · 02-07-2005, 01:17 PM

Worn/loose belt is a common cause, but another little known problem is worn out pulleys. No they don't last forever!

mÄrK · 02-07-2005, 05:26 PM

I'm pretty sure its not the belt as when its squeeling the wheel is very hard to turn.. I was able to get the belt nice and tight when I changed pumps but it still seems to squeel when I turn in parking lots and tight places like that.

Magnum_Willys · 02-07-2005, 10:39 PM

Try spraying a little belt dressing on it - you'll find out if the belt is the culprit...also when the belt sqeals it is hard to turn.....

02-04-2005, 08:48 PM	#1 (permalink)
mÄrK Registered User Join Date: Mar 2000 Member # 506 Location: Peoples republic of Nine Mile Posts: 1,230	hydroboost pump change I have an 82 burb with hyrdoboost and my pump had been squeeling for a while now so I replaced it with a junkyard pump.. Well that one worked fine and first and now its squeeling when I turn. Is there possibly another prob or is this pump toast too? and do I need to bleed lines and do something special since I have changed pumps?

02-05-2005, 07:12 AM	#2 (permalink)
yettiatcpg Registered User Join Date: May 2003 Member # 19728 Location: To far from any good trails... Posts: 428	what did you use for fluid? if it was trans fluid then you will need to remove it and use GM power steering fluid. it has better non foaming agent and will prevent squeeling & howling. __________________ Yetti

02-05-2005, 08:28 AM	#4 (permalink)
yettiatcpg Registered User Join Date: May 2003 Member # 19728 Location: To far from any good trails... Posts: 428	one more thing, don't forget to dump the Hydroboosters acumulator. with the engine OFF, pump the brake pedel about 10 times, that way you will get any hidden oil out. __________________ Yetti

02-07-2005, 01:17 PM	#6 (permalink)
Smash-K20 Registered User Join Date: Feb 2004 Member # 26894 Location: arsehole of the world Posts: 373	Worn/loose belt is a common cause, but another little known problem is worn out pulleys. No they don't last forever! __________________ Dale _____________________________________________ [QUOTE=Entropy]Please, Rip isn't big enough to make me mumble. I could sing the Star Spangled Banner without a skip sucking Rip's dick.[/QUOTE]

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

02-05-2005, 08:07 AM	#3 (permalink)
mÄrK Registered User Join Date: Mar 2000 Member # 506 Location: Peoples republic of Nine Mile Posts: 1,230	I used a cheap no name power steering fluid. I'll drain it out and try the GM stuff. Thanks!

02-07-2005, 09:35 AM	#5 (permalink)
6.2Blazer Registered User Join Date: Jul 2003 Member # 21408 Posts: 1,157	Are you sure it's not simply the belt squealing? On my hydroboot setup I have to go retighten the belt a couple of times a year.

02-07-2005, 05:26 PM	#7 (permalink)
mÄrK Registered User Join Date: Mar 2000 Member # 506 Location: Peoples republic of Nine Mile Posts: 1,230	I'm pretty sure its not the belt as when its squeeling the wheel is very hard to turn.. I was able to get the belt nice and tight when I changed pumps but it still seems to squeel when I turn in parking lots and tight places like that.

02-07-2005, 10:39 PM	#8 (permalink)
Magnum_Willys Registered User Join Date: Dec 2003 Member # 25643 Location: Longview, WA Posts: 797	Try spraying a little belt dressing on it - you'll find out if the belt is the culprit...also when the belt sqeals it is hard to turn.....