Temp Gauge / wire??

[mountie]

My battery went dead ( dome lights on all day)..... I had AAA replace the battery ( at no cost)..... The tech fumbled a bit to get it secured properly.... When I left, I noticed the temp gauge was not working ..... When I start the truck, the gauge does 'bump' a bit... But no temp..... Later I just wiggled ALL the wires and it now works......

Which wire do I need to inspect????

 

[iamdub]

...Which wire do I need to inspect????

Anything that was touched, particularly the ground. Make sure it's fully secure to the battery terminal and frame (or engine- wherever it goes on these things). The temp sensor is at the front left corner of the engine, in the cylinder head. The battery isn't too far away. Maybe you have a loose connection to that sensor and it was disturbed during the battery swap, then fixed when you wiggled wires.

 

[mountie]

Anything that was touched, particularly the ground. Make sure it's fully secure to the battery terminal and frame (or engine- wherever it goes on these things). The temp sensor is at the front left corner of the engine, in the cylinder head. The battery isn't too far away. Maybe you have a loose connection to that sensor and it was disturbed during the battery swap, then fixed when you wiggled wires.

View attachment 365377

Cool, thanks...... Wow... an answer including a great picture .... I feel special !!

 

[Joseph Garcia]

Cool, thanks...... Wow... an answer including a great picture .... I feel special !!

This Forum is Special, because its members are Special.

 

[BigRed300r]

I have herd that Sometimes when the battery dies or is disconnected for any reason there is an internal battery in the BCM. If that battery is bad then when the main battery is disconnected or goes bad then it kinda looses its memory. Try to relearn the bcm to pcm and see if that works. YouTube has several videos on this process.

 

[mountie]

I have herd that Sometimes when the battery dies or is disconnected for any reason there is an internal battery in the BCM. If that battery is bad then when the main battery is disconnected or goes bad then it kinda looses its memory. Try to relearn the bcm to pcm and see if that works. YouTube has several videos on this process.

Thanks... I'll check that out... In the meantime, I wiggled the wire and the temp worked again.
( But I don't like bandaids, so i will learn to 'relearn'.