pwb

maybe a new pressure sensor is a ide. But if i should replace it and the temperatur sensor and sender (try one more time), what is the best one to buy?

andrewjohnson24

I would suggest taking a look at the connectors that the sensors plug into, this reminds me of why mine wouldn't work until I noticed they weren't even making contact but when I replaced the my sensors I began reading what I was supposed to it maybe that your sensors are reading true now in comparison to the gauge, were you reading lower before you change the sensors? also you could crack the plastic and that ill allow the malfunction, but what did the gauge look like before you changed them? your temp sensor has 1 wire and the coolant sending unit sensor has 2. I go to Autozone for all of my parts or find Ac Delco parts but you cant have 2 of the same sensors that are bad in a row it has to be simple and its being over looked, if you take the one wire from the coolant temp sensor and ground it out your gauge should read max and it will kick your light on but don't do it for a long time or it will short your system out. let me know if you fixed it but the coolant gauge looks normal. but your oil pressure sensor needs to be replace I you have the 5.2 have fun changing it if you have the 4.0 its easier to change but still difficult to turn a wrench in there.

pwb

The gauge didnt work before i changed the sensor, the sensor conection was broken. I know there is two type of sensor for the one in front, the first i got from jeep4x4center (crown) was wrong, it was for a older engine. i did a control where i put it on hot water and use a ohm meter to read the ohm. But is there two different types of the sender (the on in the back), could i have got the wrong one there also? I have done a check and it looks ok when i read the temperatur on the water and see the ohm. I also used a resistor with ohm that should be 100 celsius and tested the gauge and that was correct, so i realy dont know what to test next. BUT, could i messure the temperatur on the water with cutting the hose to the heater and used a T there and relocate the sender there would that measure correct temperatur on the water if i use the hose that goes from the thermostate housing?