Car temperature rise when stop or idle but back to normal when i rev to high rpm ?
(2012-02-03 15:20:07) 1. Says: While Matt is pretty much correct, I have seen a cooling system that was low do what you are describing, allowing more coolant VOLUME to flow off-idle. I am, however, concerned that you may not get a usable answer without giving the year, maker , and model of the vehicle. Does it get hot immediately upon start ups? Only get hot stopped in traffic? Does the temperature drop when sitting still and revving the engine, or do you have to be moving to get the temperature to drop?2. Says: Richard says "Low coolant, fan belt slipping, water pump failing, thermostat failing, but more than likely blockage in radiator."Not a single one of those would allow the temperature to go down from revving it up. Not one.
You have a bad fan clutch. It's the only part that when failing will still produce better results at higher RPM. You didn't give us the year/make/model, but you need a fan clutch.3. Says: Low coolant, fan belt slipping, water pump failing, thermostat failing, but more than likely blockage in radiator. In any case, have the cooling system flushed and cleaned, replace the thermostat, and make sure whoever does the job verifies coolant flow through the block and radiator.4. Says: radiator needs to be flushed out, better yet flush out the whole cooling system. it could be the water pump. i kinda rule out the thermostat. it sounds more like the radiator is clogged.5. Says: Hi razif
this is normal for most cars it is what is known as latent heat stored in the engine it is all very normal to be honest. Tag: Car temperature rise when stop or idle but back to normal when i rev to high rpm ?