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Home > Puma (Tdci) > Motor cranks but won't start - does it have an immobilizer?

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Siwynne

Member Since: 04 Nov 2016
Location: West lancs
Posts: 578

Presume since it was a starter replacement the battery terminals were removed and replaced in the correct order. +first. Try it. Relock the truck. Sometimes working in a garage vehicles sit permanently open. Close all doors and bonnet. Rearm the alarm using the locking fob. Try again.

My 2.2 will crank but not restart if I don’t follow these steps

9th Sep 2024 5:55am

mrodey

Member Since: 18 May 2023
Location: Svedala
Posts: 30

2009 Defender 110 Puma 2.4 CSW Scotia Grey

Siwynne, there is no FOB and the immobilizer is bypassed. How would the battery or immobilizer system interrupt fuel getting to the rail?[/quote]

9th Sep 2024 6:22am

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605

2015 Defender 90 Puma 2.2 XS CSW Montalcino Red

Are you getting a correct (low) coolant gauge position and a battery + oil warning light on the cluster when you key on?

1988 90 Td5 NAS soft top

2015 D90 XS SW

9th Sep 2024 6:30am

mrodey

Member Since: 18 May 2023
Location: Svedala
Posts: 30

Martin, coolant is pegged at the bottom and battery oil light is on if I remember right.

11th Sep 2024 1:39pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17388

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Siwynne wrote:
Presume since it was a starter replacement the battery terminals were removed and replaced in the correct order. +first. ...

The order in which the battery terminals are disconnected and reconnected cannot make the slightest difference (nothing on the vehicle can determine which order you've used). The only reason why good practice dictates disconnect earth first and reconnect earth last is to reduce the risk of shorting the battery by grounding the non-ground terminal with a tool.

11th Sep 2024 4:50pm

mrodey

Member Since: 18 May 2023
Location: Svedala
Posts: 30

Car came back from another mechanic who confirmed immobilizer was set to off.

Could the VCV suddenly have complete failure and prevent fuel from getting to the rail? Trying to eliminate options here. Never had any limp mode, power loss, etc. before it suddenly stopped starting.

12th Sep 2024 9:43am

mrodey

Member Since: 18 May 2023
Location: Svedala
Posts: 30

Well after a week at the mechanics with no progress I rolled my sleeves up and got busy. Long story but in the end... air in the fuel line caused air lock at the pump in the motor (2.4 so no pump in fuel tank). Thanks for all who contributed to this weird issue that shows no reason for happening.

15th Sep 2024 6:35pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20382

$W33T $0U7H3RN $UG4R
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15th Sep 2024 6:57pm

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