Question about 1998 Isuzu Hombre

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How do i change a water pump

Engine overheats and water level is ok

Posted by Anonymous on

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Posted by Anonymous on Mar 28, 2014

Posted on Mar 12, 2016

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  • 66 Answers

Thermostat stuck maybe.

Posted on Mar 08, 2016

  • Anonymous Mar 10, 2016

    Posted by Anonymous on Mar 28, 2014

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1 Answer

1999 Cadillac Eldorado ,overheating changed thermostat , overflow cap ,no white smoke coming from exhaust.hot blowing from heater


Are the cooling fans coming on ? Go under the hood in the engine compartment , with the vehicle running have some one turn on the A/C , do you see and or hear the cooling fans come on ? Could be the coolant temperature gauge is bad ! How many miles on the vehicle ? Ever have water pump replaced ?

1

Check for a loss of system pressure.
Is there a loss of system pressure?
--
Go to Step 2 yes
Go to Step 3 no

2

Inspect and repair any faulty hose connections.
Does the engine still overheat?
--
Go to Step 3 yes
System OK

3

Check for low coolant protection (-37?°C/-34?°F).
Is there low coolant protection (-37?°C/-34?°F)?
--
Go to Step 4 yes
Go to Step 5 no

4

Test solution. Replace the coolant if necessary.
Does the engine still overheat?
--
Go to Step 5 yes
System OK

5

Check the water pump belt for low tension.
Is the water pump belt tension too low?
--
Go to Step 6 yes
Go to Step 7 no

6

Replace the water pump belt tensioner.
Does the engine still overheat?
--
Go to Step 7 yes
System OK

7

Check for an inoperative thermostat bypass.
Is the thermostat bypass inoperative?
--
Go to Step 8 yes
Go to Step 9 no

8

Replace the bypass.
Does the engine still overheat?
--
Go to Step 9 yes
System OK

9

Check the water pump.
Is the water pump inoperative?
--
Go to Step 10 yes
Go to Step 11 no

10

Replace the water pump.
Does the engine still overheat?
--
Go to Step 11 yes
System OK

11

Check the radiator fins for obstruction.
Are the radiator fins obstructed?
--
Go to Step 12 yes
Go to Step 13 no

12

Inspect and clean the radiator fans.
Does the engine still overheat?
--
Go to Step 13 yes
System OK

13

Check the cooling system passage for obstruction.
Is the cooling system passage blocked?
--
Go to Step 14 yes
Go to Step 15 no

14

Inspect and flush the system. Reroute or replace the hose if necessary.
Does the engine still overheat?
--
Go to Step 15 yes
System OK

15

Check the water pump belt for damage.
Is the water pump belt damaged?
--
Go to Step 16 yes
Go to Step 17 no

16

Replace the water pump belt.
Does the engine still overheat?
--
Go to step 17 yes
System OK

17

Check the cooling fans.
Are the cooling fans inoperative?
--
Go to Step 18 yes
Go to Step 19 no

18

  1. Inspect the electrical connector. Replace if necessary.
  2. Does the engine still overheat?
--
Go to Step 19 yes
System OK

19

Check the throttle body circuit flow.
Is the throttle body circuit flow restricted?
--
Go to Step 20
Go to Step 21

20

  1. Inspect the orifice and associated hose. Replace if necessary.
  2. Does the engine still overheat?
--
Go to Step 21
System OK

21

Check for a stuck thermostat.
Is the thermostat stuck in the closed position?
--
Go to Step 22
--

22

Replace the thermostat.
Does the engine still overheat?
--
--
System OK

Sep 16, 2015 | 1999 Cadillac Eldorado

2 Answers

What cause of overheat from engine


an engine will overheat if the rad cooling fan is not working, this will have to be check to see if its the fan motor, the fan relay. low coolant level, top up coolant check for leaks. could be head gasket problem, bad water pump(impeller worn).

Aug 08, 2014 | Daihatsu Charade Cars & Trucks

1 Answer

Check engine comes in when engine starts to overheat, which it does in slow traffic. Radiator, fans, water pump are OK.


Did you check/replace the thermostat? Another possible cause may be hair line cracks in the head(s).

May 10, 2014 | 2006 Mitsubishi Lancer

1 Answer

Overheats when driven,no heat


Verify you have coolant - look at the plastic reservoir to see if the level is OK. If the level is OK, when the engine is cold, take off the radiator cap and verify the radiator is full. If these steps are good, then you have a bad thermostat or water pump.

Dec 16, 2013 | 2002 Buick Rendezvous

1 Answer

Overheat, engine will automatically stop, low charging on battery.


SOUND LIKE BAD WATER PUMP.IF BATTERY LOW CHARGE LIGHT ON WATER PUMP BEARING COULD BE LOCKING UP DRAGGING DRIVE BELT DOWN ENOUGH TO SLOW DOWN ALTERNATOR TO KEEP BATTERY FROM CHARGING.REPLACE WATER PUMP AND THERMOSTAT.CHECK COOLANT LEVEL SEE IF ANTIFREEZE IN RADIATOR IS LOW. IF SO FILL COOLANT SYSTEM BACK TO NORMAL LEVEL SEE IF WATER PUMP WEEP HOLE LEAKING WHILE ENGINE RUNNING IF SO WATER PUMP IS BAD.

Aug 26, 2011 | 1997 Nissan Sentra

2 Answers

Ford Escape 2003. Engine suddenly overheat.


Engine over heating can be caused by a number of things. When you say the water pump and radiator appear to be ok I am also guessing that you checked the coolant level to make sure it is normal.

If the level is low then you obviously have a leak. Insufficient coolant circulating will not cool the motor properly because it won't be able to draw enough heat out. If the level is normal then you need to check the thermostat to make sure it is opening properly. To do this, run the motor to temperature and check the top and bottom hoses. They should both be hot and firrm once the thermostat opens meaning the circulation loop is operating properly. If the top is hot and firm and the bottom is cold/soft or collapsed then the thermostat isn't opening.

If the thermostat is operating properly then you ned to look for some other obstruction or cause for coolant loss. Check the head/intake gaskets, hose connections, hoses, over flow tank, radiator fins, radiator side tanks etc..

Good luck.

Jun 10, 2010 | 2003 Ford Escape

2 Answers

1997 polo overheats even after removing thermostat


On a water cooled engine... the impeller on the water pump is no longer working correctly. It has probably come loose from the input shaft and is no longer pumping water. You can prove this on a warm engine by filling the radiator to the top and then accelerating / decelerating the engine... if you don't get a change in the water level the water pump is shot.

Kelly

Feb 21, 2010 | 2001 Volkswagen Golf

1 Answer

Dodge Neon 1998 DOHC Overheats when off the accelerator


It sounds like your coolant level may be too low. When you drive up hill the coolant will tend to flow into your engine block and help to cool it down. When you drive down hill the coolant will tend to flow out of the engine block and into the radiator. This may allow the engine block to overheat. I recommend checking your coolant level. If you need to add coolant use a 50/50 mixture of water and antifreeze. If your coolant level is low you may have a leak. Look for the leak while the engine is hot.

I'd also check to make sure your electric cooling fan is working. Let the engine warm up with the car idling in park. Watch to see if the fan ever turns on. If the fan doesn't turn on the problem could be caused by the fan itself, a fan relay, or a temperature sensor.

Jun 02, 2009 | 1995 Honda Passport

2 Answers

Car overheats at idle, ok when at speed


You will need to Change your Thermostat. A bad Thermostat will cause the Overheat Problem as Stated above. Also, Check you Coolant Level, and see if the Water Pump is Pumping Water through the Radiator. Please Rate my Response, I need all the Help that I can Get! Thanks!

Jan 26, 2009 | 1993 Saturn SL2

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