alright... my buddy blew up his y80 gsr trans about a mothn ago and we have been waiting for the type r 1 he order to replace it.... i put it in filled it everything, but now the car overheats???? it goes from a normal reading to nasty hot and then back again... it cycles kinda, im thinking the thermostat is stuck open or jsut fucked..... any input would be nice, thanks guys

 

How did he blow up his old trans. Are your fans and radiator functioning properly?

 

about a month ago.... the fans are working fine, we drove it for about a 1/2 hour before it started to get hot then cool then get hot and all that,, btw its a 97 gsr w/ an obd1 p72.... i cant seem to find out whats wrong with it..... im still thinking its the thermostat any opinions.

 

if it goes from hot to cold and back it could be a sensor thats loose or bad wiring... i had an f150 that did the same thing but it didnt have anything to do with the thermostat

 

Fans kick on? If not, bad thermostat.

 

i would think fans... cuz if the thermostat was stuck open... then it wouldn't be able to get the hot point... if it was stuck closed it would overheat very quickly.... possibly just an error with sensors or when the thermostat thinks it's supposed to open and close

 

found out the prob, air in the system and it was stuck closed and a plug next to the radiator wasnt plugged in....idk wht it was to but its all fix and it quick as a mofo