Rank: Member
Groups: Registered
Joined: 17/01/2013(UTC)
Posts: 10
|
WB Statesman blue 308 Hi. My temp gauge is not working. Iv put a test light on the green wire that goes to the sender on the motor and there's no power. Checked all fuses, disconnected the quad gauge to see if there's power from the green wire in the plug to the gauge Nothing. Got me stumped Any ideas before I call a sparky Edited by user Sunday, 28 October 2018 7:37:19 PM(UTC)
| Reason: Not specified
|
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,728
Thanks: 1 times
Was thanked: 513 time(s) in 489 post(s)
|
Aren't the senders just a variable resistance 0V connection? Basically the -ve side of the gauge, thus I don't believe you'd get much voltage there to operate a test lamp, especially if the gauge is stuffed. |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,064
Thanks: 1 times
Was thanked: 203 time(s) in 184 post(s)
|
As HK1837 has pointed out, there won't be much voltage at the sender in circuit.
The best (& easiest) method of testing a temp gauge is to remove the sender wire from the sender & connect the wire to earth via a resistor (cheap as chips a Jaycar etc.).
With ignition on & using a 75 ohm resistor (for a WB) the gauge should read around half scale. If it doesn't, your gauge is faulty. If it does read half then either your sender is faulty or the engine isn't getting up to full temperature.
Dr Terry
|
If at first you don't succeed, just call it Version 1.0 |
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,728
Thanks: 1 times
Was thanked: 513 time(s) in 489 post(s)
|
The other thing I have witnessed that causes temperature gauges to play up is the wire beteen the battery - terminal and the body is missing. |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
