2004 XJ8 Power steering failure + overheating.
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Junior Member
Joined: Jul 2018
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From: Phoenix
2004 XJ8 Power steering failure + overheating.
Hello,
I am so hoping that I can get some insight into the following!
I was driving down the freeway here in Phoenix last night in my 2004 XJ8 with my daughter, when all of a sudden I hear a high pitched squeal for about 10 seconds, followed by the battery light coming on, loss of power steering, and temperature gauge rapidly climbing.
i slowed down and pulled over as quickly as I could and turned off the engine. I popped the hood while The fan continued for a while, and once cooled, I noticed that the PS res was bone dry (I just changed my oil the previous weekend and checked fluids... all good). I also lost some coolant. I ended up towing it.
Any idea what I am looking at? I am not a mechanic at all... any advice would be greatly appreciated!!
I am so hoping that I can get some insight into the following!
I was driving down the freeway here in Phoenix last night in my 2004 XJ8 with my daughter, when all of a sudden I hear a high pitched squeal for about 10 seconds, followed by the battery light coming on, loss of power steering, and temperature gauge rapidly climbing.
i slowed down and pulled over as quickly as I could and turned off the engine. I popped the hood while The fan continued for a while, and once cooled, I noticed that the PS res was bone dry (I just changed my oil the previous weekend and checked fluids... all good). I also lost some coolant. I ended up towing it.
Any idea what I am looking at? I am not a mechanic at all... any advice would be greatly appreciated!!
Joined: Dec 2011
Posts: 120,439
Likes: 17,011
From: Durham, UK
Welcome to the forum Azartist,
I've moved your question from General Tech Help to X350 forum. This is the place to post technical questions about your model.
Graham
I've moved your question from General Tech Help to X350 forum. This is the place to post technical questions about your model.
Graham
Last edited by GGG; Jul 19, 2018 at 02:13 AM.
Joined: Dec 2011
Posts: 120,439
Likes: 17,011
From: Durham, UK
1. the squeal suggests either the drive belt or an accessory issue.
2. the battery light coming on suggests the alternator was no longer rotating.
3. temperature rising suggests water pump no longer rotating.
3. an empty PS reservoir/loss of power steering suggests a broken pipe or steering rack seal.
You did exactly the right thing to stop and have the vehicle towed. Overheating a Jaguar V8 is an engine killer.
The simplest explanation is the Drive Belt (often called the 'serpentine' belt) has broken:
As can be seen from the diagram, it drives the Water Pump, Power Steering Pump, AC Compressor and Alternator (generator). Once the belt stops turning, so do all these accessories.
A second possibility is the Tensioner (item 2) has seized. This is a spring loaded pulley which keeps the drive belt under tension. It is a known failure on the V8 engine.
The loss of PS fluid raises a third possibility - power steering pump failed.
Your prompt action has almost certainly avoided catastrophic engine damage but, if you are not able to DIY repairs, the cost could still be an unpleasant surprise if it turns out to be the power steering compressor.
Graham
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Junior Member
Joined: Jul 2018
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From: Phoenix
Thank you for the reply, Graham.
I heard back from the local Jaguar shop I had it towed to. Got a call later in the day with this diagnosis:
Siezed AC compressor. AC seized up and the serpentine belt was consequently shot.
$1800 to fix. Ouch. What a rude awakening to the world of the Jaguar!
I heard back from the local Jaguar shop I had it towed to. Got a call later in the day with this diagnosis:
Siezed AC compressor. AC seized up and the serpentine belt was consequently shot.
$1800 to fix. Ouch. What a rude awakening to the world of the Jaguar!
Veteran Member
Joined: Dec 2009
Posts: 9,553
Likes: 2,553
From: Crewe, England
Thank you for the reply, Graham.
I heard back from the local Jaguar shop I had it towed to. Got a call later in the day with this diagnosis:
Siezed AC compressor. AC seized up and the serpentine belt was consequently shot.
$1800 to fix. Ouch. What a rude awakening to the world of the Jaguar!
I heard back from the local Jaguar shop I had it towed to. Got a call later in the day with this diagnosis:
Siezed AC compressor. AC seized up and the serpentine belt was consequently shot.
$1800 to fix. Ouch. What a rude awakening to the world of the Jaguar!
Veteran Member
Joined: Nov 2009
Posts: 3,145
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From: The beautiful Mornington Peninsula in OZ
"I heard back from the local Jaguar shop I had it towed to. Got a call later in the day with this diagnosis:
Siezed AC compressor. AC seized up and the serpentine belt was consequently shot.
$1800 to fix. Ouch. What a rude awakening to the world of the Jaguar!"
That's bad luck-a very rare fault AFIK.Siezed AC compressor. AC seized up and the serpentine belt was consequently shot.
$1800 to fix. Ouch. What a rude awakening to the world of the Jaguar!"
Last edited by meirion1; Jul 20, 2018 at 05:28 PM.
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Junior Member
Joined: Jul 2018
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From: Phoenix
Bad luck indeed! Car is fixed, blowing ice cold air, and running great... just like it was before the AC failure. Keeping my fingers crossed that my love of driving this car doesn't outweigh my bank account!
Veteran Member
Joined: Dec 2009
Posts: 9,553
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From: Crewe, England
BTW, glad to hear you're "up and running" as the IT industry guys would say !
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