What does it mean when your temperature goes up and down in your car?
The main reason why car temperature gauge goes up and down while driving is because something is not working properly in your car’s cooling system. It could be the radiator fan, water pump, thermostat valve, coolant, or the gauge itself. To fix either of these issues, we’d advise that you engage a proven auto mechanic.
Why does my Pontiac grandam keep overheating?
I have a 2003 Pontiac Grandam, last week all of a sudden it started overheating. Temperature gauge maxed out within a 5 minute drive. I let it cool down ran it a couple of miles at night with no problems. Tried it again the following morning still no problems. At noon it started overheating again.
Why does my car keep overheating when I Turn on the fan?
There is a coolant temp sensor that sends the temp reading (actually a resistance value that changes with temp) to the ECU and at a programmed ‘temp’ setting the ECU operates the fan relay (s) which turn on the fans The number of relays it operates depends on the fan speed required and whether or not the A/C is operating.
Why does my Chevy 3.4 keep overheating?
This is not an awnser but i have had 7 chevys with the same problem. (that includes pontiac) the 3.4 and 3.1 have a disconnect from the temp switch to pcm or pcm to the relay.
Why does my car’s temperature gauge keep fluctuating?
The radiator could be plugged, could have plugged cooling passageways, could have a defective water pump, loose belt issue, collapsed hose, excessive load on the engine due to dragging brakes, underinflated tires, and so forth.
I have a 2003 Pontiac Grandam, last week all of a sudden it started overheating. Temperature gauge maxed out within a 5 minute drive. I let it cool down ran it a couple of miles at night with no problems. Tried it again the following morning still no problems. At noon it started overheating again.
This is not an awnser but i have had 7 chevys with the same problem. (that includes pontiac) the 3.4 and 3.1 have a disconnect from the temp switch to pcm or pcm to the relay.
There is a coolant temp sensor that sends the temp reading (actually a resistance value that changes with temp) to the ECU and at a programmed ‘temp’ setting the ECU operates the fan relay (s) which turn on the fans The number of relays it operates depends on the fan speed required and whether or not the A/C is operating.
Why does my car’s water pump keep overheating?
If you don’t see this the water pump may be faulty, a broken impeller perhaps. BE CAREFUL because as the coolant heats it will expand and flow out of the neck of the radiator. You only need to see the movement to prove that it is flowing. Switch off the engine as soon as you see the coolant flow in the neck of the radiator.