I was just driving my 2003 s-type r & my engine light came on saying high engine temperature so i pulled into the closest gas station to check the coolent level & it was fine. i waited 10mins & started it & it seemed fine until i started driving again & the temperature started to go back up & the light came back on. after about 10 stops i made it home lol does any1 know what the problem could be & maybe a quick fix. Thanks , Mike

 

I would start with the thermostat.
Make sure you bleed all the air out after replacement

 

thanks im gonna check that first thing in the morining ill get back to you & let u know

 

Cool.
Other thing to check is the water pump....making sure it is circulating....but I think I have only replaced 1 water pump on an STR so I would suspect t-stat first.

 

When the temp starts to go up, turn the heat up and see if it starts to go back down. If the thermostat is stuck closed this will let the water circulate. Stuck closed will get hotter the faster that you drive. I had the same symptoms and they replaced the thermostat and the water pump that was leaking. Now all is well.
Hope this helps.

 

there is still a extended warranty do you know if the thermostat or water pump is covered??

 

Yes, both were covered by Select Edition.

 

i just drove the car 2 the shop. by the time i got there the temperature gage was almost at the red. i did try 2 turn up the heat but it only slowed down the rate of it heating up but did not stop it. i got my friend 2 check it out & the engine temperature was normal so he is going 2 try 2 reset the computer & see if it happens again.

 

That was the idea, just to help you to get it to the shop with out having to stop so often. It won't bring it back to normal. My bet is still on the thermostat.
Let us know!

 

thanks for the help ill get back 2 you when i hear from the shop

 

Yep.....definitly the thermostat.

 

sometimes my temp needle rises fast, i mean fast.....like from normal to high in 3 seconds.........usually it means that I have to refill the overflow resovior with antifreeze and then when I stop it seems that the antifreeze is overflowing....

it beats me, but as long as all i need ot do is add antifreeze im not too worried about it

 

The reason the coolant overflows that way is because the pressure buildup from thermostat sticking. New thermostat will fix it.
Also, from cold to operating temp, the gauge works well. Once at operating temp, there is really no inbetween. Will normally go from op temp to hot immediately. Thats if you are lucky. Sometimes they dont show it overheating at all.

 

you guys were right it was the thermostat i got it replaced & everything is ok again. Thanks for your help

 

you guys were right it was the thermostat i got it replaced & everything is ok again. Thanks for your help

 

If only all the questions on here were that simple LOL
Glad it is sorted mate.