I cannot find the correct temp sender for my 1996 B2300 ( 2 wire )

[Stringbean1073]

I’ve had this truck , 1996 Mazda B2300 for a few months and the previous own bypassed the temp sender for the temp gauge on the dash . Almost everything I read tells me the sender is on the block around the oil filter area but on mine it is in line with the heater core hose . If I jump this plug it will peg the needle to hot . I have now bought 6 different senders all with different resistance values . None are correct . I can’t find anything online about it , only the single wire . I’ll send a pic to see if anyone has the same .

 

[franklin2]

Here is a TSB on it. I wonder if the Mazda dealer can get this retro fit kit? It comes with a new sending unit.

Instruments - Temperature Gauge Fluctuates​

T01498

1995 - 96 B-Series - TEMPERATURE GAUGE FLUCTUATES

APPLICABLE MODELS
All 1995-96 B-Series.

DESCRIPTION

The temperature gauge may fluctuate when the thermostat opens, particularly during engine warm up. This may be caused by an over-sensitive temperature sending unit to gauge signal. A modified sending unit/gauge kit is now available.

Customers complaining of this concern should have their vehicle repaired according to the following procedure.

REPAIR PROCEDURE

1. Verify customer complaint.

2. Perform normal cooling system diagnostic procedures per the Workshop Manual.

3. If the cooling system is operating properly and slight gauge fluctuation has been observed, install service kit.

4. Remove the existing water temperature sending unit located near the thermostat housing.

5. Remove temperature gauge per Workshop Manual page S-26 and BETM pages C1-48 & C1-50.

NOTE:
Temperature sending unit, gauge and slosh module are packaged together as a kit and must be replaced together.

6. Verify repair.

PARTS INFORMATION

WARRANTY INFORMATION

This information applies to verified customer complaints on vehicles covered under normal warranty Refer to the SRT microfiche for warranty term information.

 

[Stringbean1073]

Here is a TSB on it. I wonder if the Mazda dealer can get this retro fit kit? It comes with a new sending unit.

Instruments - Temperature Gauge Fluctuates​

T01498

1995 - 96 B-Series - TEMPERATURE GAUGE FLUCTUATES

APPLICABLE MODELS
All 1995-96 B-Series.

DESCRIPTION

The temperature gauge may fluctuate when the thermostat opens, particularly during engine warm up. This may be caused by an over-sensitive temperature sending unit to gauge signal. A modified sending unit/gauge kit is now available.

Customers complaining of this concern should have their vehicle repaired according to the following procedure.

REPAIR PROCEDURE

1. Verify customer complaint.

2. Perform normal cooling system diagnostic procedures per the Workshop Manual.

3. If the cooling system is operating properly and slight gauge fluctuation has been observed, install service kit.

4. Remove the existing water temperature sending unit located near the thermostat housing.

5. Remove temperature gauge per Workshop Manual page S-26 and BETM pages C1-48 & C1-50.

NOTE:
Temperature sending unit, gauge and slosh module are packaged together as a kit and must be replaced together.

6. Verify repair.

PARTS INFORMATION

WARRANTY INFORMATION

This information applies to verified customer complaints on vehicles covered under normal warranty Refer to the SRT microfiche for warranty term information.

Hey at least you’ve gotten me somewhere , I don’t think it’s the gauge fluctuating that is my problem but I’m open to trying this kit , I am just having a hard time finding this sensor itself . Mine is a two wire sine it’s inline with the heater hose and isn’t grounded to my block . When I go to buy this part they want to sell me the one wire , or a sensor for the computer ( there are two , one for temp gauge and one for computer ) if I try to order a two wire it comes with high resistance . I cannot find anything online about a part number for the correct temp sender for my application . If I jump the harness wires my needle works just fine and jumps to hot . Every sender I get rises in resistance with heat and I need one that drops in resistance with heat since 1 ohm pegs my needle . Thanks for responding man . At least you’ve found information I didn’t know .

 

[SenorNoob]

This may be a dumb question, but I wonder if it would work if you got the one wire version and just hooked it up to the wire going to the gauge on your truck?

 

[Stringbean1073]

This may be a dumb question, but I wonder if it would work if you got the one wire version and just hooked it up to the wire going to the gauge on your truck?

It’s located in a fitting that’s in the heater hose coming from the heater core . It isn’t grounded . If it’s grounded it only needs one wire . I am trying not to run a ground wire to the fitting and cut my harness but I may have to . There has to be someone out there who has a part number to this thing . I have found a few other guys online looking for same part with no luck .