Car over heating??

[touch109]

I was just drivng my car on the highway and had the A/c when i look down to see how much gas i have left i see that car is almost 260... I quickly turn off the A/c and it goes down to about 230.... It was about 90 outside and i was trying almost 30 mins... what can be wrong... i changed the coolant last year.. its never done this before.... I do have a xenon body kit

[ninobrn99]

sometimes the guages act funny. to know for sure, you should get it scanned with efi or hpt. I kno wyou did the coolant change last year, but have you tired bleeding it?

[touch109]

i didnt use something else to check the temp.. but i could feel it hot.. i even noticed the a/c not beeing as cold ... coolant was checked and was fine..

[bene]

First off what year and mileage of the car are we dealing here?

Could be alot of things right now if you don't get down on specifics, bud.

[ninobrn99]

does it still have plenty of coolant?

[touch109]

car has enough coolant and has about 52k on it...

[bene]

Is your fans coming on? Get someone pull you an accurate engine temp. (scanner/HPtuner/LS1edit, etc)The gauge in the car is pretty much a dummy gauge.

[ninobrn99]

run it while its warm and see if the fans are coming on. that could be a start. check the hoses and make sure you feel the coolant passing thorugh. basically, ensure eveything mechanical is up to par then go from there.