2000 4.2L Power Steering Noise Remedy
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Joined: Sep 2005
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2000 4.2L Power Steering Noise Remedy
I searched f150online and other websites (about 3 hours) and could not find anyone experiencing the same noise (rattle) that I encountered and cured on my 2000 F150 XL 4.2L 82k miles.
This post is written as a courtesy post for those who may be looking for a solution to the common belt/pulley noises that we all encounter on our Fords.
Noise started as a slight tapping sound (like a plastic bead inside a pvc pipe being shook real fast). I isolated it to the AC compressor or ps pump as the noise was coming from the drivers side. It got worse over time to the point that I was afraid to drive it any long distances.
I bought a rebuilt pump from autozone, transferred the pulley using the correct puller set. Noise was still there and even worse with new ps pump. I looked and checked everything under the hood to find where/what the noise is with no results. I swapped belts too. I notice that our pulleys are made of plastic, so I decided to buy a metal one (Dorman part number 300-010). Installed the metal pulley and presto the noise was gone. I was beginning to think I had an internal problem (cam synchronizer, phaser, timing chain, etc.) but it just turned out to be the plastic pulley. I believe that it has a hair line crack that expands when it's spinning, thus creating the tapping/rattle noise.
I hope this helps the next guy who hears this funky noise.
best regards....cg22.
This post is written as a courtesy post for those who may be looking for a solution to the common belt/pulley noises that we all encounter on our Fords.
Noise started as a slight tapping sound (like a plastic bead inside a pvc pipe being shook real fast). I isolated it to the AC compressor or ps pump as the noise was coming from the drivers side. It got worse over time to the point that I was afraid to drive it any long distances.
I bought a rebuilt pump from autozone, transferred the pulley using the correct puller set. Noise was still there and even worse with new ps pump. I looked and checked everything under the hood to find where/what the noise is with no results. I swapped belts too. I notice that our pulleys are made of plastic, so I decided to buy a metal one (Dorman part number 300-010). Installed the metal pulley and presto the noise was gone. I was beginning to think I had an internal problem (cam synchronizer, phaser, timing chain, etc.) but it just turned out to be the plastic pulley. I believe that it has a hair line crack that expands when it's spinning, thus creating the tapping/rattle noise.
I hope this helps the next guy who hears this funky noise.
best regards....cg22.
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Follow Up
I cleaned the plastic pulley thoroughly and looked for chips, cracks, etc., there are none. The only conclusion I can make at this is that the pulley has a metal center that is pressed into the plastic pulley.....I believe that when spinning, there is a slight separation of the metal center and plastic pulley resulting in a ticking/rattling noise.
Hope this helps those who may experience this annoying noise.
Hope this helps those who may experience this annoying noise.
Junior Member
Joined: Jan 2014
Posts: 1
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From: Latta, SC
I cleaned the plastic pulley thoroughly and looked for chips, cracks, etc., there are none. The only conclusion I can make at this is that the pulley has a metal center that is pressed into the plastic pulley.....I believe that when spinning, there is a slight separation of the metal center and plastic pulley resulting in a ticking/rattling noise.
Hope this helps those who may experience this annoying noise.
Hope this helps those who may experience this annoying noise.
Technical Article Contributor
Joined: Jan 2007
Posts: 10,636
Likes: 264
From: Vernon, NY
I had to replace my grooved plastic idler pulley because of this similar noise. This was when I was also having alternator issues. I found that noise using a stethoscope.
Why would they use plastic on moving engine parts is beyond me...
Why would they use plastic on moving engine parts is beyond me...