Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Welcome I'm Chris aka Moose
Can you use a scan tool to monitor the coolant temp to see what the readings are as well as monitor the temp at the thermostat housing to see if they match. I doubt the temp is actually fluctuating, and this concern is something electrical going on.
-----------About me and Just Answer------------
I am in my upper 30's, have a wife and 2 sons. I farm, fish, hunt, build, and coach youth soccer. I work on anything with an engine, been to many schools and classes through my 12 years with the dealership to get trained and certified. I try the best I can to share what I know and or have access to with my customers. Please consider I base my questions and answers to you, solely on the information you give me since I am not there to see, smell, hear, touch, or test. I try my best to be here everyday starting at 3pm central. Rating an answer is required. Please let me know if your not pleased prior to rating or if you cannot rate me so I can try to help a different way. God Bless and have a great day.
Will your tool also measure the transmission fluid temp sensor to see if its fluctuating and getting high?
How long must you be in drive idling for the temp to rise?
I am for sure its something electrical to blame, because coolant cant change temp this fast. With the hood open and an assistance watching the engine, does it move excessive when changing gears? A possible mount fault and a wire harness rubbing could be the cause.
Do you have the skills to unplug the coolant temp sensor and monitor it to power and ground ohm testing to see if the reading changes when shifted from D to R and back.
What would you like from me, that would make you pleased with my assistance being that your not able to perform any diagnostics. I want you pleased but we are stuck at not being able to test.
Hello again, I am sorry you were not pleased with my help.
I hate that you paid to get an answer but left, what appears to me, not satisfied.
Just so you know I am still here and available to help any day. We can start over fresh or just pick up where we left off.