engine temp

[tcpc]

hello,

looking at some off the previous topics i have notice that my 350i is runing at 40 to 45c on a continous run
and when sitting at idle it will rise to around 90c
and if it trys to go above that then the fan cuts in, but once on the move it will come down to 40is c,

can some one tell me if this is ok or is it sending the wrong info to the ecu

thankyou

tony

[jmorgan]

My 350 would do that on occasion so I would change the thermostat and that cured it, stuck open/opening early. Not saying that that is your solution.
When working it would come up to 80 odd, thermostat would open and gauge drop a little then come back up to 90 odd and fans come on and drop back below 80, but not far etc.

>> Edited by jmorgan on Monday 20th January 20:59

[tcpc]

so do you think my is running a bit cooler then it should, and would it send the wrong info to the ecu


tony

>> Edited by tcpc on Monday 20th January 21:04

>> Edited by tcpc on Monday 20th January 21:05

[danny hoffman]

The switch on my electric fan started cutting in early a few weeks ago during the cold weather and the car would not reach full temp. It definately ran a bit strange.

[jmorgan]

tcpc said: so do you think my is running a bit cooler then it should, and would it send the wrong info to the ecu


tony

>> Edited by tcpc on Monday 20th January 21:04

>> Edited by tcpc on Monday 20th January 21:05

Going by what mine used to run like yes but then I am no expert and would defere to more informed peole. Standing by for a lesson

>> Edited by jmorgan on Monday 20th January 21:41

[dickymint]

If yer guage is calibrated correct (Which i doubt)then its definately too low. but i think the ecu is only concerned about really low temps so that it can cut in the low temp injector. But dont worry cos sooner or later Shpub,Wedgie etc etc will see your plight and give you a more definitive answer.

[wedg1e]

It does sound like the stermothat is stuckly open. 90 would be about right at idle, as long as the fans come and go to keep it from going daft. Go for a cruise at 45 degrees, stop and quickly check the rad hoses. If it doesn't take the flesh off your hand (i.e. is merely warm) then the gauge is probably telling the truth and the 'stat is Donald Ducked.

Ian

[montegogt]

Mine runs on the cool side unless it's stationary, but then my fan switch is duff, so I prefer it cool! I have a manual fan switch for traffic jam scenarios...

[19560]

Ideally the fan(s) should cut in a little later at about 97 and bring the temperature down to about 90. The engine runs best at about 92.

[tcpc]

thanks for the replys ,i will get a new stat, i will try RT and see if he has one

Tony




>> Edited by tcpc on Tuesday 21st January 22:04

[shpub]

Get a TVR one. Don't fit a Rover one as they have the wrong temp spec. An 82 or even 78 is the best. Chnaces are the car will end up overheating otherwise.

Steve
www.tvrbooks.co.uk