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rattling/knocking sound around P/S pump 

 

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 Post subject: rattling/knocking sound around P/S pump
Posted: Mon Oct 02, 2006 4:13 pm 
Oompa Loompa
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VIC, Australia

When starting the ef cold theres a rattling/knocking sound from around the power steering pump, then after a few minutes it stops. Replaced pump with one from a wrecker which seemed to have a new pulley on it and even though it wasnt as bad it still did it, any suggestions would be helpful, thanks.
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Posted: Mon Oct 02, 2006 11:13 pm 
Getting Side Ways
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spray some water or CRC belt grip on the belt while engine at idle, if the noise goes away, it's a worn belt.

Commom problem on EF/EL's for a worn belt to make wierd noises on that big pwr str plastic pulley.

cheers............

 

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Posted: Tue Oct 03, 2006 12:40 am 
Getting Side Ways
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I agree, sounds like the belt may be worn. Check your pulley over for hairline cracks as when the belt applies pressure to this crack, could cause your knocking.

To check if its internals of the pump, take the cap off. If the noise is noticably louder with cap off, then you picked up a dodgy pump. If the noice is no different then the pump is pumping fine.

I rebuild pwr steer pumps and racks, and ive found that half the time its either the pulley, or the other half is a blown o'ring inside causing valve plates to move when they shouldnt.

 

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Posted: Tue Oct 03, 2006 7:22 am 
Oompa Loompa
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i had a similar noise from that area turns out my water pump bearing had gone and was causing the impaller to rattle slightly pump $80 $120 labour.
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Posted: Tue Oct 03, 2006 9:09 am 
Getting Side Ways
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Another thing to check is the alternator bolts, if they are loose it will rattle around.
Also, If you get a long screw driver put one end on the power steering pump/alternator/water pump and the other on your ear you will easily find which is making the noise..
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Posted: Tue Oct 03, 2006 1:40 pm 
Getting Side Ways
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tjb45 wrote:
Another thing to check is the alternator bolts, if they are loose it will rattle around.
Also, If you get a long screw driver put one end on the power steering pump/alternator/water pump and the other on your ear you will easily find which is making the noise..



garden hose cut at a length of about 1m works alot better than a screwdriver, when locating noise problems.

 

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97 EL Fairmont 4l OHC .Silver.
Exhaust: Pacemaker's, 2.5" exhaust and Hiflow cat
Intake: FRAM AIRHOG , EL GT snorkel
XR6 300kpa fuel reg Stg 2 Auto Shift Kit.6DJA ECU
PM in Qld looking too buy Toyota 4*4 SR5 Dualcab Hilux 91-97 with 2.8l diesel engine/5spd manual

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Posted: Tue Oct 03, 2006 5:23 pm 
Oompa Loompa
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Location: melbourne
VIC, Australia

its been suggested to me that it might be the belt but since it was replaced new by a mechanic 3-4 years ago i thought that it might have something to do with a vane sticking in the pump but im no expert , thanks for the help, ill see what i can find.
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