My car gets over heated when i stop with the engine still going?

[Andrewchou]

when i go to the drive through at mcdonalds or other places my temperature bar thing gets really high and i cant figure out why my car is a jeep from 1992 its pretty old and rusty but i want to know if i can fix the engine or if im going to exchange a new one?

 

[TCJBOLDIE]

when i go to the drive through at mcdonalds or other places my temperature bar thing gets really high and i cant figure out why my car is a jeep from 1992 its pretty old and rusty but i want to know if i can fix the engine or if im going to exchange a new one?

Here are some basic things you can do to locate the overheating problem.

1 is the radiator full ?
2 Add radiator cleaner and flush radiator after following instructions on the cleaner bottle.
3 Is radiator core blocked and not allowing cooling air to flow thru ?
4 Is fan belt slipping ?
5 Is water pump faulty ?
6 Take radiator to a specialist and have the tanks removed and the core rodded out and tanks refitted
7 Is the thermostat blocked or not opening and is it the correct one for your car?

NOTE I always test a new thermostat by immersing it in water and heating it up on a stove to check if it's operating correctly as have found faulty ones over the past 55 years or so.

Good luck and let us know what was causing the overheating when you track it down.

 

[Yugguy]

I think he's said it all there.

 

[HDi fun]

Fan switch or fuse?

 

[T9 man]

Well the OP certainly has enough information to be getting on with, whatever the problem proves to be I hope it is a cheap fix for you buddy

 

[TCJBOLDIE]

IF its a clutch type fan the clutch may be faulty/worn out as well .

 

[old-git]

Is the fan coming on when engine gets hot?

 

[Andrewchou]

Is the fan coming on when engine gets hot?

the fan is working good！

 

[Yugguy]

Blocked thermostat I reckon then.

 

[Andrewchou]

Here are some basic things you can do to locate the overheating problem.

1 is the radiator full ?
2 Add radiator cleaner and flush radiator after following instructions on the cleaner bottle.
3 Is radiator core blocked and not allowing cooling air to flow thru ?
4 Is fan belt slipping ?
5 Is water pump faulty ?
6 Take radiator to a specialist and have the tanks removed and the core rodded out and tanks refitted
7 Is the thermostat blocked or not opening and is it the correct one for your car?

NOTE I always test a new thermostat by immersing it in water and heating it up on a stove to check if it's operating correctly as have found faulty ones over the past 55 years or so.

Good luck and let us know what was causing the overheating when you track it down.

Thanks a lot，my friend checked the radiator yesterday

， there are mass of dirty. It will be ok after i clean off them?

 

[davalav]

Make sure that no oil is in the coolant bottle. Over heating could be due to a head gasket failure too.

 

[Andrewchou]

Here are some basic things you can do to locate the overheating problem.

1 is the radiator full ?
2 Add radiator cleaner and flush radiator after following instructions on the cleaner bottle.
3 Is radiator core blocked and not allowing cooling air to flow thru ?
4 Is fan belt slipping ?
5 Is water pump faulty ?
6 Take radiator to a specialist and have the tanks removed and the core rodded out and tanks refitted
7 Is the thermostat blocked or not opening and is it the correct one for your car?

NOTE I always test a new thermostat by immersing it in water and heating it up on a stove to check if it's operating correctly as have found faulty ones over the past 55 years or so.

Good luck and let us know what was causing the overheating when you track it down.

I answered you just now, but i cannot find my reply, one more time.
Thanks a lot for your advices above, and they helped me. I have checked the radiator, there are mass of dirty. I am going to clean off those dirty, hope it is useful. Thanks a lot!

 

[TCJBOLDIE]

I answered you just now, but i cannot find my reply, one more time.
Thanks a lot for your advices above, and they helped me. I have checked the radiator, there are mass of dirty. I am going to clean off those dirty, hope it is useful. Thanks a lot!

When you add the radiator cleaner to do it properly you will need to have the heater on to help get all the gunk out of the cooling/heating system and drive or run the motor for at least the minimum/distance time specified on the product you are using.

 

[Andrewchou]

When you add the radiator cleaner to do it properly you will need to have the heater on to help get all the gunk out of the cooling/heating system and drive or run the motor for at least the minimum/distance time specified on the product you are using.

I will try it, Thanks a lot, and all above answers