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When I idle in traffic, my motor overheats. When I drive again it returns to normal

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How do I fix my engine that gradually overheats in traffic or in idle?


If it only overheats when stopped and stays cool or normal when driving that I would suspect that the radiator fan is not working. Check the obvious like fuses and relays. The relay can be swapped with another identical relay in the fuse block. If those check out than you will need some more advanced diagnostic equipment and info. If you up to the challenge I can provide you with some more in depth info to help you solve.

Aug 20, 2015 | 1995 Ford Escort

1 Answer

Overheating car


There may be an issue with your oil pressure sensor.
You also probably have a faulty water pump that is functioning under revs but not at idle, what happens if you rev it mildly at idle

Apr 11, 2013 | 2003 BMW 5 Series

1 Answer

Car overheats while standing


The radiator fan doesn't work , the problem may be or the fan itself , or the sernzor that activates the fan or poor contact at the senzor

Sep 12, 2012 | 2008 Peugeot 308 1.4

1 Answer

I have 2001 mazda 626 and its overheating. we have checked fluids nothing is leaking or coming out levels are good. we have replaced the thermastat and its still doing it. where should i look next? ill...


when does it overheat ? wile driving at hiway speeds ? or at idle or wile driving in stop and go traffic ?

if it overheats on the hiway, supect a restricted radiator, or a blown head gasket or cracked cylinder head.

if it only over heats at idle or in stop and go traffic, supect no cooling fans.

Jun 29, 2011 | 2001 Mazda 626

3 Answers

My toyota revo van model 2001 is getting overheat when there is heavy traffic. However if I will turn off the aircondition the tempe rature will go back to normal level. Can you help me please


Guys, I have Toyota Revo 2001 manual diesel. Its getting overheat only during idling or heavy traffic. We overhauled the radiator, new radiator cap and hoses, new thermostat, the fan is ok. the pump is quiet (no noise). Still, its getting overheat. please help me guys! Thanks!

May 03, 2011 | 1997 Toyota Previa

1 Answer

When idling my jeep overheats. The cooling fan is running and it speeds up when temperature goes up. The temperature gets close to 260 degrees and the engine tries to stall. when I start moving it cools...


At idling speed an engine does build up a lot of heat and the cooling fan will kick in. In slow moving traffic or traffic jams the temperature gauge can touch the red - particularly on hot days. The reason it cools down when you start moving is because of the air flow through the radiator.

Presumably there are no leaks from the cooling system otherwise you would have mentioned it. In normal circumstances the fan will not be running as you are driving at speed, as the air-flow through the radiator is sufficient to cool things. The fan only kicks in to get rid of excess heat - and this usually occurs at idling speed or after you have parked the car.

If the fan is running all the time as you drive, this points to either a fault in the fan switch, or the car is running too hot. presumably in normal driving the fan isn't running and the temperature gauge reads normal?

It is common - in stationary traffic many cars overheat (particularly big engined models) try to stall and 'cut out'. Restarting can be difficult until the engine cools down.

Is your car overheating in normal driving conditions or just at idle speed? Overheating in normal driving conditions can be caused by things like a failing water pump, blocked radiator, collapsed hose, faulty thermostat or, in the worst case scenario, cylinder head problems.

Overheating at idling speed is 'common'. Check your coolant level. If your car isn't using/losing coolant then there probably is no major problem. You can flush out the cooling system and refill with new coolant - and also check your radiator. Are the cooling fins crumbling with age? Or maybe they're partly clogged with insects and debris from the road? A blast with a hosepipe wil sort that out ..

The question is how much does your car overheat in normal driving? If it doesn't .. it appears as though you have nothing to worry about as such. Most cars have 2 speed fans... the 2nd faster stage kicks in at some point dependant on engine temperature. Perfectly normal.

Aug 14, 2010 | 2003 Jeep Grand Cherokee

2 Answers

I have a 2002 Volkswagon Jetta and just started to overheat when stuck in traffic, the gauge goes up to 240 and the overheat light goes on but drops to normal when traffic is moving again - any idea what...


Check
1)thermostat and also that the electric fan is kicking in when it gets above normal temp
2)blocked radiator
3)worn water pump (more so from electrolysis, ie not using the right antifreeze)

Aug 08, 2009 | 2002 Volkswagen Jetta TDI

1 Answer

Keeps overheating


Hi again,

For some unknown reason(s), the Live Session was cut short. Our apologies for any inconvenience.

Perhaps you could try again? The old session/chat would no longer continue.

Cheers.

Aug 01, 2008 | 2004 Jeep Grand Cherokee

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