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Thread: Coolant Sensor Connector - 1.9CDTI

  1. #1
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    Default Coolant Sensor Connector - 1.9CDTI

    Has anyone ever had to replace the coolant sensor connector on a 1.9CDTI 8v? If so I'm just wondering where you sourced the connector from as I suspect that Vauxhall will want to sell me a new wiring loom.

    On my car the connector's two wires move in and out ever so slightly - just enough to either break the connection or subject the connection to high resistance intermittently when the car is travelling >30mph. I've tried opening the connector up and packing it to help restrict the movement of the terminals, but the problem still shows intermittently, resulting in either a fault code or rogue readings on the temperature gauge (the thermostat was recently replaced with the revised version, which is when the sensor connection was disturbed and the problem started).

    I am certain that the connector is the problem as I can replicate both faults (and see the wild temperature fluctuations in Op-Com) at standstill by wiggling the connector's wires. I don't suspect the new thermostat as the cabin heater temperature doesn't change when the temperature gauge's needle suddenly drops to the bottom of the scale.

    Thanks
    Chris

  2. #2
    Regular Member lee gsi's Avatar
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    Vehicle : Signum

    Trim : Design

    Engine : 1.9 CDTi

    Year : 2005

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    Any pictures of the connector?

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    Quote Originally Posted by lee gsi View Post
    Any pictures of the connector?
    Not to hand I'm afraid, but I can take one if it would help. It's the 2-way connector that plugs into the sensor on top of the thermostat housing.

    Thanks
    Chris

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    Regular Member merikiito's Avatar
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    Vehicle : Insignia CDTi SRi NAV 160

    Trim : SRi

    Engine : A20DTH

    Year : 2009

    Mileage : 88000

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    You can get repair kits for most connectors from Vx

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    Quote Originally Posted by merikiito View Post
    You can get repair kits for most connectors from Vx
    That's very useful to know. I'll give them a call in the morning and report back with any info I can glean from them as it may help others reading this thread in the future.

    Thanks for your advice...

    Chris

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    I spoke to Vauxhall yesterday morning, but they don't appear to sell a repair kit for this particular connector. The advice they gave was to find a connector from a salvage vehicle and splice it into the wiring loom.

    Vectras appear to be uncommon in salvage yards around here (Rossendale). I've tried a local SAAB specialist but it seems that the equivalent connector on the 9-3's equivalent 1.9TiD 120 & 150 engines is slightly different, so the search continues...

    Cheers
    Chris

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