Question about 1991 Ford Econoline

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I changed the thermostat, water pump but it still overheats

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Did you check the radiator for leaks or for leaks around hoses. Carefully look inside the radiator to check for water circulation. If it's not circulating, there's still a problem. Good Luck.

Posted on Sep 12, 2009

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The mechanic should check on the radiator and the radiator fan .Also check the cooling fins of the radiator if the cooling fins are worn out then replace them. You should also check if there is a leak in the radiator and then repair the radiator .The radiator fan ,check it also if the the pulley of the fan is working and if not then replace it or repair it.And the engine oil should be check if the engine oil is dirty or diluted then change oil because of sometimes dirty or diluted oil can cause engine over heat.

Posted on Sep 12, 2009

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Posted on Jan 02, 2017

wilsodfarm
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SOURCE: Truck continues to overheat changed water pump and

You might have a head gasket going south on you,Here is a test you can do to confirm it,Take your overflow line and stick in a clear bottle with water start the engine an see if you have bubbles in the bottle,if not at start up wait till engine gets up to temp and the thermstat is open, if you have bubble you are getting compression in your coolant system,I hope this helps you And thanks

Posted on Sep 11, 2009

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SOURCE: I have a problem with a 2000 Ford F250. have

You might be lucky and it may be the head gasket. My son's '97 ford six had air bubbling out of the expansion tank. A new head gasket cured it. If it was an intake manifold problem, I'd expect coolant to be sucked into the engine. hope this helps...

Posted on Sep 15, 2009

  • 99 Answers

SOURCE: 2001 ford escape overheating

try replacing your radiator cap

Posted on Jan 02, 2012

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1 Answer

Water boils in reservoir. What can it be?


Vehicle make YEAR and model?

Nov 19, 2016 | Cars & Trucks

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

1 Answer

Egine overheats


You did not mention the Thermostat which controls the temperature of the engine. Did you mean the Thermostat when you said temp sensor? If not, then change the thermostat.

Mar 05, 2015 | 2003 Chevrolet Impala

1 Answer

I have a 1992 Buick regal that overheats at speeds of 40 mile n hour it has a new radiator, thermos stat, has been flushed an filled and bled have not changed the water pump when it overheats all of m


It is more than likely your water pump. Can you run it in park with the radiator cap off. The cap on the radiator not the overflow tank. When the temp opens the thermostat you should see flow if the pump is good no flow it is probably bad. If you don't see flow check the upper hose for temp and the lower hose. If the upper line is barely warm and the lower hose is significantly hotter, it is either water pump or thermostat, but since you replaced the thermostat I would be back to water pump. BTW you should use either a contact thermometer or an infrared to check hoses, although it was done by hand in the old days.

Feb 28, 2013 | 1992 Buick Regal

1 Answer

Can a bad heater core cause your vehicle to overheat? I have a 1994 GMC Suburban


I WOULD SAY NO BECAUSE WATER ONLY CIRCULATES WHEN YOU TURN ON THE HEATER, BUT IF YOUR VEHICHLE CONTINUES TO OVERHEAT IT COULD BE 5 THINGS. CLOGGED RADIATOR,RADIATER HOSES.THERMOSTAT,RADIATER FAN SENSOR OR THE WATER PUMP

Feb 14, 2013 | 1994 GMC Suburban

1 Answer

Have an 2003 Olds Alero 2.2L, overheating. Removed thermostat housing/feed pipe to check thermostat to find no thermostat present, however the heat has working, although it has took 5 or 6 minutes to warm...


I can't give you any specifics on how to change your water pump, but I can answer your questions about the thermostat. Yes, the heat will work withou a thermostat. And yes, a car will overheat without one, especially in the summer months. The purpose of a thermostat is to allow cooler water to flow into your block, but also to allow the water adequate time to be cooled in the radiator. Without the thermostat, water is continuously cycling through your coolant system, getting hotter and hotter. Often I see people with malfunctioning thermostats jsut remove them, sometimes on the side of the road, just to get where they're going.

May 02, 2011 | 2003 Oldsmobile Alero

2 Answers

I have a bmw 328i 1996 and it overheats but my oil light comes on and soon after the car starts to try and cut of i changed spark plugs and new oil change........ wats wrong with my baby


Most likely a bad Thermostat or Water Pump. Replace the Thermostat, the cheapest part, and if it still overheats replace the water pump.

Jan 03, 2011 | 1997 BMW 328

1 Answer

I have a 94 nissan altima that overheats. I


sounds like where the water pump meets the engine has warped or the gasket has been blown. Since the water pump has to come out anyway to fix it then i would suggest replacing the pump. It is 30 to 40 more.

Jul 09, 2009 | 1996 Nissan Maxima

1 Answer

98 328IS OVERHEATING AFTER CHANGING THERMOSTAT


Are you putting the thermostat in correctly? It it will not work backwards.

And to confirm that there isn't a different problem, take the thermostat out all together and see if it overheats.

Engine not fully warming up is not usually caused by the thermostat. Stats usually fail closed, not open.

You will want to check the water temperature sending unit or gauge after verify the water temperature with an external calibrated thermometer. You can attach and insulate the external thermometer to the housing where thermostat is located.


Reply back what you figure out. I will be happy to help you further.

Feb 03, 2009 | 1997 BMW 328

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