rainydayman

i just got an acura cl and i noticed that when im driving on the highway at 75 or more miles per hour, the temperture guage starts to go up after 30-40 minutes. the needle starts to go over the middle marker to the 3/4 mark. when i stop the car or im driving on local streets, the needle goes back to the middle marker. im guessing its the water pump or t-stat. im jsut hoping its not the head gasket.

i was planning to flush the system and replace the t-stat but before i do that, i was wodnering if anyone here has ever had that problem or figured out what it was? any insight would be great. thanks.

jinjabred

Probably dirty radiator.

D Day

i had the same problem with my older mercedes and i replaced the thermostat and the rad cap. but i would also look to see if the red is dirty like the previous poster mentioned.

riceisnicenv

its under warranty... take it to the dealer and let them pay for all the crap