Temperature Sender?

[jaybee747]

Hi,

Can anyone help on a temperature sender,(I think) fault? I get a temperature reading on the gauge one day then may not get one the next. My question is I've got an extra sender in the inlet with a round male bullet connection. Could I use this sender to check that the gauge is not faulty or does this type of sensor give diferent resistance(don't really know much about how they work)? Also if I cannot, is the sender available as a Rover dealer part(the one behind the distributor).
I have removed and cleaned associated parts but to no avail.

Many thanks Jaybee.

[GreenV8S]

The sender needs to be matched to the gauge, so you would need an instrument supplier rather than and engine supplier. As a first step, you could disconnect the sender and show that the gauge reads hot, and then short the wire to the engine and show the gauge reads cold. You could also try wriggling the wires and see if that affects the reading. If you still have trouble then take ths sender out and test it / get it tested. The sender is immersed in coolant so expect some loss if you remove it, but it's at the top of the engine so you will only lose a pint or so.

[jaybee747]

Thanks for the reply, by what you say the sender in the manifold is not compatable with the gauge. So by removing the offending gauge couldn't a Land Rover parts dept. match the sender(if it is the sender)? In my experience, senders don't work one minute then not the next. but the wiring and connections are good and clean. I haven't taken the dash to check behind so maybe the fault is there.

Oh sod it till tommorrow I'm going for a few ciders.

Thanks again, Jaybee.

[GreenV8S]

The gauge is not a standard Land Rover gauge, and the sender will be matched to the gauge and not a standard Land Rover part. Unless somebody has changed the sender you can assume that it was the right one for the gauge. The fact that the problem is intermittant indicates that you have a fault either in the sender, gauge or wiring. You need to track down where the problem is, and my advice was intended to help you do that.

[Mongoose]

jaybee747 said:

Hi, Can anyone help on a temperature sender,(I think) fault? I get a temperature reading on the gauge one day then may not get one the next. My question is I've got an extra sender in the inlet with a round male bullet connection. Could I use this sender to check that the gauge is not faulty or does this type of sensor give diferent resistance(don't really know much about how they work)? Also if I cannot, is the sender available as a Rover dealer part(the one behind the distributor). I have removed and cleaned associated parts but to no avail. Many thanks Jaybee.

The sensor in the inlet manifold can be used with your gauge,but with an inline resistor added to calibrate it.Infact this is one of the poular mods that David Beer(modwise) used to sell to overcome the low reading std sensor,which read low due to being cooled by airflow over it in its front of engine position,as such it's a worthwhile mod.I think that David used to use a variable resistor in his kit,so that you could tune it in accurately.You would have to contact David for the details of the variable resistor,as i dont know from memory what it was i'm afraid.
As Peter says though,to be an intermittent fault it could be the gauge,wiring or the sensor.

[jaybee747]

Sorry for the long absence Mongoose & Green V8s, work commitments and all that!
Very much appriciated all your advice and will, time permitting follow it.

Again many thanks.

[jonathant]

I'm looking to do this mod too (moving from standard to spare sender). I presume this spare sender is easily obtainable at the point at which it packs in?

[chimalsu]

as said before david beers mod cures the temp sender problem i fitted it to mine in secconds and regulated it usung my friends lazer temp gauge which is very accurate,no miss reading since