XJ XJ8 / XJR ( X308 ) 1997 - 2003

Rattle at cold startup?

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Old Jan 1, 2008 | 08:24 PM
  #4  
worldpower's Avatar
Joined: Sep 2007
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Default RE: Rattle at cold startup?

its not always the tensioners, i had mine replaced and i still get that rattle upon startup, i just ignore it now.
i think some situations are because of not enough oil pumping through

 
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Old Jan 2, 2008 | 07:32 PM
  #5  
jag_genius's Avatar
Joined: Jun 2007
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From: Pompino Beach , FL
Default RE: Rattle at cold startup?

it's not always the secondary ones(the easy ones)
sometimes it's the primary as well .. or worn out sprockets..
 
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Old Jan 12, 2008 | 03:53 PM
  #7  
worldpower's Avatar
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Default RE: Rattle at cold startup?

does your mechanic know what to look for? is he experienced with Jags?
 
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Old Jan 12, 2008 | 06:09 PM
  #9  
FactoryJaguarTech's Avatar
Joined: Jan 2008
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From: 33498
Default RE: Rattle at cold startup?

If your mechanic was in there already, what did he have apart? A kit for the tensioners that can be installed in 2 hours? Man if I could do that in 2 hours I would be rich.

It is like an 8 hour job to do tensioners. If you are going in there to do them, do them all. When you half *** it you will be paying again to get things done.

If they were done then I wouldnt worry. As said could be the lack of oil pressure on first start. Look inside the throttle housing and see if you have any oil there. If so the 98 motor probably has some blowby. Most commonly however if the noise exists after tensioners done, VVT units make a rattle on first start.
That may be common only to my area however due to differing climates, different noises can mean different things.
 
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