Hi I am new in forum and unfortunately heave a big problem or lack of knowledge my or nissan service in Poland.
Please Guys i need Your advice and opinion.
I will try wrote everything from the beginning
Four weeks ago i bought My Nissan Pathfinder 4.0 SE model
Produce in USA in 2008. Shipping to Poland in 2009.
Carfax is Clear no damage. Poland history clear no damage.
Start Up Config from last owner:
- Trans radiator Bypass.
After few days i was notice that my additional electric fan just starting on every time i was stop car on red light and wait
- ac off
- rpm stable
- temp gauge on dashboard just under half
- temp outside +18C
Drive like this until winter come and now we have -5C outside and the same situation with electric fan.
So i buy OBDII BT ELM327 device to link my phone and check temp from car computer and what i saw was terrible.
When I am stooping on red light i have +97C on comp temp via BT then after one minute electric fan just starts and until i will drive i have +100C-103C , when i am driving 50mph in Your units i have 96-98C on computer temp.
- rpm stable on park 650 when driving 50mph 1200 rpm
- temp gauge on dashboard just under half
- temp outside -5C
I was drive to Nissan Service and spend with car one week and half.
1. Check and change thermostat - was stack on close
Change Engine Coolant to new - re flush old one
- still the same higher temps on computer ,
- now we have longer time to heat engine it is normal because we have new thermostat and big loop open but after while still 100-103C on park
- still the same temp gauge on dashboard just under half when driving and stop car
2. Change temp sensor on engine - they told me that is very bad place for temp sensor in the middle of the block - i think this is smart ass academic talk
- still the same temps on dashboard gauge and Nissan service and my computer 100C-103C
3. Change Fan Clutch - still the same.
Additional observations and knowladge.
1. When i park and have +98C or drive and hit the high rpm temp just drop down in seconds to 92C or 94C
- so i assume that was fan clutch was open all the time and was changed to new one.
- still have a problem
2. I have red Comma Concentrate cooling liquid in loop so me and service guys do not have any idea is that was oil inside.
3. Burping procedure was done few times. No bubbles in loop.
4. Last owner tells me that he make Trans Bypass for safety. Nothing happens while he was use the car.
5. I don't have any interior heating problems
6. No service codes displayed - clear history
Service Ideas.
Service have no idea and they ask me to take car back.
Now they talking that temp in computer is normal ( high 100-103C ) because this is different sensor. Dashboard temp is correct measure ( just under the half ) and leave it just like that.
My Question is ( just keep it mind that i was read many posts on this and another Nissan forums before i was wrote mine ).
1. What is Your correct temp operational in example on BullyDog gauge when driving 50mph and stop on red lights.
2. Did Your Dashboard gauge stays just under half in temps operational
3. When Your additional electric fan is starting under what conditions
- temp outside
- ac off
I think it is not normal to drive alone 50mph in 1200rpm and have 97-98C temps with every time starting electric fun when stop on red light. We have winter outside in Poland NOW !!!
I hope it is not so boring essay for You Guys.
I am waiting for advice and additional questions.
PS. I just don't want overheat my engine - i don't know that if i can trust my dashboard temp gauge anymore.