2004 xterra temp rises when stopped, goes back down when moving
My XTerra engine seems to get extremely hot when stopped in traffic, even if it is for short periods of time (going through an ATM). So hot that I have to turn the AC off because the air is not cold, and actually gets hot. I can't tell otherwise if the engine actually is hot. Once I start driving, the engine cools back down; and oddly enough, if I rev the engine while stopped, it also cools down. Any thoughts? coolant? plugged radiator?
thanks so much!
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No --- any rise in temperature is something to be taken seriously
If it has a viscous fan hub ( fan clutch) I would be suspecting it first
if it is not working properly then overheating will show up in slow moving traffic , stop lights
basically any place where there is no air flow through the radiator
do all the checks first for your own peace of mind
You might want to check the distributor. Take the cap off and check if there is play on the rotor shaft. It's only supposed to turn, but if there's play when moving it back and forth, better you replace the distributor now. The 2000-2004 Xterras have a bad distributor shaft and the throttle positioner sensor is on the shaft. Just FYI.
When you say you checked the pressure did you connect gauges to the high and low sides to get both pressures, this sounds like it may be low. also what is the temp coming out of the vents. note on really hot days and humid the ac system doesnt cool as good unless the truck is moving down the road or highway and does take a while to cool down. at a stop or sitting or in traffic the ac temp will rise as the condensor needs to be cooled like the engine does, if its not cooling then the temp will not be cold, check the front of condensor for blockage, also make sure the fan is running with ac on. this fan should run when ac compressor is on,maybe clean condensor with water hose blowing from radiator outwardto front bumper, then make sure the hot/cold blend door is closing all the way,a quick test is to turn a/c on, turn temp control to hot and see if it gets hotter then back to cold and it should get colder. this sounds like the system may just be a little low. have an a/c tech check it, you may find its low or nothing is wrong. good day.
Check your fuses first, for the radiator fans. Make sure your fans are kicking on. If they are not, the fuse may be blown. When you are driving, the radiator and engine gets air. That is why it only does it when you are going slow or you stop. Make sure the engine has the correct amount of coolant in it. Check these first. If they all check out, it may be more serious problems, like a thermostat or a water pump. Check for leaking coolant also. If you have any questions, please let me know. I am here to help. Thanks for using Fixya.
Hi. Are you runing out of water in the radiator or at the reserve? if this happens there might be leak on the radiator or to the hoses. If there is no leak, then this could be the cooling system of the car that is having a problem. Try to check first the water pump.
I had a problem on my Nissan Xterra 2000. Symptons sound similar. In my case, it ran fine for a while and then suddenly the engine starts to stumble and lose output. At one point it did not even have enough HP to move. Irregular idling too. Thought it was water in my fuel. Bought water remover from the store and added to gas tank. Problem did not go away. Instead, "Service Engine Soon" light came on. Had to have it towed to the dealer as there was no way the engine could keep up with traffic. Dealer replaced the "Crank Position Sensor" today. Parts $33.00, Labor: $300 (about 3 hrs worth of work). Seems to work fine now but I will wait and see. Dealer also stated that Distributor bearing appears to be noisy and will need to be replaced sooner or later. I will wait for it to go before I fix that.