XJ XJ6 / XJR6 ( X300 ) 1995-1997

Cranks but wont start

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Old Dec 27, 2019 | 01:09 PM
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Default Cranks but wont start

97 VDP 145k
Just completed an in depth tune up, transmission servicing for shifter cables, sensors and realignment, complete brakes and brake lines overhaul and intake manifold replacement which was cracked when I bought the car last month. However, the car wont start. It'll crank but wont start. My mechanic has spent the last week chasing this issue.
 
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Old Dec 28, 2019 | 04:23 AM
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See the 'Sticky' at the top of the forum.
https://www.jaguarforums.com/forum/x...ngines-120221/
 
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Old Jan 18, 2020 | 11:02 PM
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turns out the ecm crap the bed. my mechanic is going to send the unit to his connect in LA. luckily they're both jaguar techs.
 
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Old Jan 18, 2020 | 11:13 PM
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Hi novemberjazz,

ECM failure is rare, though not unheard of. More common causes of cranks/no-start include failure of the crankshaft position sensor or its wiring, or failure of the fuel pump, fuel pump relay or associated wiring.

Rarely it's the inertia switch, but once in awhile it is.

We'll be anxious to follow your journey.

Cheers,

Don
 
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Old Jan 18, 2020 | 11:25 PM
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Originally Posted by Don B
Hi novemberjazz,

ECM failure is rare, though not unheard of. More common causes of cranks/no-start include failure of the crankshaft position sensor or its wiring, or failure of the fuel pump, fuel pump relay or associated wiring.

Rarely it's the inertia switch, but once in awhile it is.

We'll be anxious to follow your journey.

Cheers,

Don

it was specifically water damage. I'll be sure to keep those interested in the loop!

 
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Old Feb 23, 2020 | 08:19 PM
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Originally Posted by novemberjazz
97 VDP 145k
Just completed an in depth tune up, transmission servicing for shifter cables, sensors and realignment, complete brakes and brake lines overhaul and intake manifold replacement which was cracked when I bought the car last month. However, the car wont start. It'll crank but wont start. My mechanic has spent the last week chasing this issue.
yep. After a full tune up, headgasket repair, intake manifold gasket repair, dry and wet pressure testing, turned out the issue was a water damaged ECU. Chump that up along with a complete braking system overhaul, transmission and shifter servicing and realignment and paint... I spent 3800$ on a 600$ car lol but at least shes bullet proof and looks good doing it.
 
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