2G Overheating

[Velmin hu]

Greetings my car gst 96 seems to overheat go up in temp not to red but little higher whenever I drive it and then come to stop idle for couple mins it starts to climbing and feel like it drops 100 rpm when is Ideling .

also my a/f gauge seems to show ———-.

Here is a video

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[arodgst]

For the overheating have you checked to make sure the fans are coming on and that theres no leaks from your radiator or hoses?

 

[motomattx]

It sounds like your fans are not coming on when sitting still, start there.

 

[609DSM]

@motomattx has the right idea, start there for sure.

Check coolant levels and quality of coolant as well. Dont check the little resivoir, check the through the radiator cap, just to be sure you're topped off and with fresh fluid.

 

[BLACK'98DSM]

Coolant temp sensor?

 

[95FullSend99]

Check for any radiator or hose leaks. Including under the dash due to the heater core. Make sure the fans are kicking on. I'm willing to bet it's the fans.

 

[Velmin hu]

So the fans do kick in when it reach certain temp above normal, is it due to me pushing it psi kinda hard I’m getting 20 psi on big 16g evo I do have all supporting mods except stock intercooler? I check for leaks thanks

 

[95FullSend99]

Stock radiator fans will kick on right around 200 degrees. I believe the magic number is 213 but dont quote me. Now according to my logs, anywhere between about 194-206 the needle on the temp gauge is right in the center. So, due to you soring past the middle line, you should be able to see if your fans are kicking on. If they are not then you have narrowed down your problem.
Keep in mind, keep your AC off. One of the fans will kick on low speed when your AC is turned on.

 

[miguelmcv]

Check your radiator, unbolt the radiator brackets from top and pull the radiator back, you will be able to stick your hand in front of the radiator and feel the radiator core, if you feel hot and cold spots on the core, then you have a clogged radiator.

 

[Bud92gsx]

U guys are right, check to see if the radiator fan is coming on.
I'm betting the thermostat is shot, stop by the parts store for a new one, its probably under ten dollars.
I'd check for leaks too, but that's just me being thorough.

 

[Velmin hu]

Stock radiator fans will kick on right around 200 degrees. I believe the magic number is 213 but dont quote me. Now according to my logs, anywhere between about 194-206 the needle on the temp gauge is right in the center. So, due to you soring past the middle line, you should be able to see if your fans are kicking on. If they are not then you have narrowed down your problem.
Keep in mind, keep your AC off. One of the fans will kick on low speed when your AC is turned on.

Yes the fans kick in the temperature drops to normal in the center but I am wondering how come it went up rised. Never have my cars done it before thank you.

 

[95FullSend99]

Yes the fans kick in the temperature drops to normal in the center but I am wondering how come it went up rised. Never have my cars done it before thank you.

Hmmm. I agree with bud. I would recommend changing out the thermostat.

 

[motomattx]

Maybe your temperature sending unit is junk, they are cheap and easy to replace, you might try that also.