1st Gen Ram Tech '93 & older Rams: This section is for TECHNICAL discussions only, that involve 1993 Rams and older. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Coolant Sensor Problems

Thread Tools
 
Search this Thread
 
  #11  
Old 06-24-2019, 09:45 PM
crazzywolfie's Avatar
crazzywolfie
crazzywolfie is offline
Legend
Join Date: Jun 2009
Location: orangeville ontario
Posts: 8,024
Received 71 Likes on 67 Posts
Default

look to the left of that heater hose. temp sensor should be hiding on the intake behind the a/c pump. a/c always makes them harder to change and see.
 
  #12  
Old 07-01-2023, 10:21 PM
Ray Wilson's Avatar
Ray Wilson
Ray Wilson is offline
Professional
Thread Starter
Join Date: Jun 2019
Posts: 126
Likes: 0
Received 1 Like on 1 Post
Default

I finally got the truck back after a long stint in storage!

I started tuning it up and was fixing a small leak from the upper radiator hose to the thermostat.

While doing so I found two cut wires. I traced the wires back to running into a wire harness I believe goes to the firewall (see photos).

Could this be the temperature sensor and it was cut?? Thanks!

Cut wires were laying next to the thermostat. I traced them to this plug.

Wires eventually lead to this harness, which I think goes up eventually into the firewall (maybe to the temperature gauge?)
 
  #13  
Old 07-02-2023, 01:25 AM
Ray Wilson's Avatar
Ray Wilson
Ray Wilson is offline
Professional
Thread Starter
Join Date: Jun 2019
Posts: 126
Likes: 0
Received 1 Like on 1 Post
Default

Update!! I am 99% sure I found the gauge temperature sensor behind the alternator. I’m going to change that, which will be a pain in the ***.

But I still want to know what those two wires go to! Those two wires were laying very suspiciously next to an empty, threaded hole near the thermostat. (See picture, yes I know I’m leaking coolant, new part on the way).

Here is the link to the forum post where I found the sensor location.

https://www.dodgetalk.com/threads/coolant-temperature-sender-location-318-engine.656734/#lg=attachment_xfUid-1-1688274832&slide=0



Empty hole right above the leaking thermostat
 

Last edited by Ray Wilson; 07-02-2023 at 01:35 AM. Reason: Added Reference Link
  #14  
Old 07-02-2023, 07:20 AM
crazzywolfie's Avatar
crazzywolfie
crazzywolfie is offline
Legend
Join Date: Jun 2009
Location: orangeville ontario
Posts: 8,024
Received 71 Likes on 67 Posts
  #15  
Old 07-02-2023, 09:12 AM
Ray Wilson's Avatar
Ray Wilson
Ray Wilson is offline
Professional
Thread Starter
Join Date: Jun 2019
Posts: 126
Likes: 0
Received 1 Like on 1 Post
Default

A/C Compressor, interesting… I’ll go look. I hope you’re right!
 



Quick Reply: Coolant Sensor Problems



All times are GMT -4. The time now is 11:52 PM.