XJ XJ8 / XJR ( X308 ) 1997 - 2003

Slightly hard downshift to 1st when coming to stop 2002 VDP

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Old 02-21-2020 | 12:38 AM
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Default Slightly hard downshift to 1st when coming to stop 2002 VDP

Just working out the bugs on my new to me 2002 VDP, I've noticed a slightly jarring harder downshift from 2nd to 1st gear when coming to a stop than any of my other 3 x308s.

Can anything be done to correct this, or do I just have to wait for a catastrophic failure, then swap in a rebuilt trans?

Also, I live in California, might anyone know where I could get a good rebuilt trans if/when that time comes?

As always, thank you in advance for your help :0)
 
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Old 02-21-2020 | 06:41 AM
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A cheap fix & catastrophe preventive may be the Trans-go Pressure Release Valve. It's done both in many cases.

https://transgo.com/product-details/...ulator-repair/

 

Last edited by King Charles; 02-21-2020 at 06:43 AM.
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Old 02-21-2020 | 07:38 AM
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with KC

Sure sounds like a Transgo pressure regulator upgrade is needed

I had mine done at a local reputable trans shop here in Redding CA.
Transgo valve $60.00
Pan gasket $9:00
Trans filter $17.80
6 qts ZF-Lifeguard-5 fluid $138.00,
Labor $200,
 
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  #4  
Old 02-21-2020 | 10:33 AM
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Originally Posted by King Charles
A cheap fix & catastrophe preventive may be the Trans-go Pressure Release Valve. It's done both in many cases.

https://transgo.com/product-details/...ulator-repair/



WoW! Thank you!
 
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Old 02-21-2020 | 10:36 AM
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Originally Posted by Carnival Kid
with KC

Sure sounds like a Transgo pressure regulator upgrade is needed

I had mine done at a local reputable trans shop here in Redding CA.
Transgo valve $60.00
Pan gasket $9:00
Trans filter $17.80
6 qts ZF-Lifeguard-5 fluid $138.00,
Labor $200,


Thank you very much for this info- You guys may have saved me an expensive fix down the road...
 
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Old 02-21-2020 | 12:09 PM
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Here is a pic of the new car after just getting new shoes and new Penta wheels - nicknamed the Pretty Kitty. It is Blue Zircon over Ivory, a combo I've been looking for for years. 47K miles, came with all records since birth :0)


I'm saving the nickname "Myyawh" <--said with an east coast gangster accent for my next supercharged x308, hopefully a SuperV8 if I can find a good one.

So right now I have (in x308s)
2001 Sapphire over oatmeal VDP
2002 Mystral Blue over oatmeal xj8
2002 Zircon over oatmeal xj8
2002 Zircon over ivory VDP
 

Last edited by WaterDragon; 02-21-2020 at 12:15 PM.
  #7  
Old 02-21-2020 | 01:51 PM
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I want to say Check transmission fluid level and colour but the car is low mileage .
 
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Old 02-21-2020 | 05:31 PM
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I have one of those Transgo kits WD (never needed it), I'll give you a good price, just PM me. I also have a new trans electrical adapter.
 
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Old 02-21-2020 | 09:30 PM
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Thank you but I already ordered one and it has shipped
 
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Old 03-11-2020 | 08:45 PM
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Just an update after the install of the valve, the shifts are so soft and smooth, you have to concentrate to notice them.

I'll be adding these to my other x308s
 
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Old 03-11-2020 | 09:02 PM
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Originally Posted by WaterDragon
Just an update after the install of the valve, the shifts are so soft and smooth, you have to concentrate to notice them.
I'll be adding these to my other x308s
AWESOME!
 
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Old 03-12-2020 | 02:02 AM
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Old 03-12-2020 | 03:50 PM
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This thread is exactly what makes this board so good.

None of the local Jaguar "specialist" shops knew anything about this transco kit, but you guys did.

It made such a huge improvement :0)
 
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