Question about 2001 Nissan Altima

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I changed my radiator, water pump, and thermostat. now my service engine light on no water seems to be in the hose from radiator to the motor guage will go up and down like its running hot if i go over 40 miles and car is now bucking. what have i done wrong. my oil and water are not mixxing.

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Sounds like the thermostat is in backwards.

Posted on Feb 10, 2018

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Hi There,
Chances are the cooling systems requires "bleeding". Meaning there is a pocket of air in the hoses where your sensor is.
Dependent upon the car maker, there are specific instructions on rectifying this problem.
If your car is an vintage car (about 30 years or more), then the thermostat could be playing up (stuck), and needs replacing.
Good luck!

Posted on Feb 10, 2018

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6ya6ya

6ya staff

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Posted on Jan 02, 2017

keemo68

Ronald Mueller

  • 1263 Answers

SOURCE: 92'Sentra GA16 suspect cooling sytem failure

you my friend have a blown headgasket, and heres why #1 you have white smoke at start up(this is an indicator of water in the fuel and hence through the exaust when it mixes in the cylinder#2 it goes away after the warm up(this generally happens because the cylinder is so much hot than the boil point of the coolant)very little smoke would be noticed#3 oil on a plug(if they were all of the plugs i would say you had bad valve seals or oil rings on pistons) seeing that it's only one pretty much tells me that is where the gasket is leaking.#4 poor idle(car will idle rough and hesitate because the computer is trying to compensate for the water air fuel mixture. hope this helps please rate this

Posted on Sep 08, 2008

Anonymous

  • 23 Answers

SOURCE: running hot

Radiator Fan Control Relay Switch. I bet your electric fan doesn't run?

Posted on Dec 01, 2008

Richard Scordino

  • 6982 Answers

SOURCE: The top radiator hose blew apart. after replacing and filling radiator back up engine runs ruff and guage is hot. radiator water is cold. What is wrong?

First place I'd look is at the thermostat. However, if the hose did not rupture in a normal manner and blew apart, I'd also suspect that you may have a blown head gasket. In that case, compression is entering the cooling system which is not designed to handle such high pressures, therefore causing the hose to explode). This will also result in rough running you observed.

Posted on Apr 18, 2009

gordanddar

gord storey

  • 477 Answers

SOURCE: temp guage showing hot, not getting any heat for 1992 Mercury Cap

If the hoses to and from the heater core are hot , and you say the heater core is hot , then the only answer is that the air duct that flows into or out of the heater core plenum ( housing ) is not opening.
Heater control on dash borad inoperative.
Not sure about 92 capri , some cars have a cable linkage , some work on vacume motors.
Try to find a haynes manual for your car , they will walk you through almost every step of anything you may ever want to do to your car.

You seem to know what you are doing , but I gotta ask ........the heater core you felt was up behind the dash inside the passenger compartment of the car right ?

Posted on May 10, 2009

csmock132

Clint Smock

  • 4669 Answers

SOURCE: radiator under too much pressure?

It might of just been a defective hose because if the pressure gets to high, the radiator cap will relieve the pressure when it reaches the pressure stamped on the cap.

Posted on May 16, 2009

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1 Answer

Waterpump 2002 ford turaus 3.0 durtec


3.0L Engine

VIN S Engine
  1. Before servicing the vehicle, refer to the precautions section.
  2. Drain the cooling system.
  3. Remove or disconnect the following:
  • Splash shield
  • Lower heater hose
  • Radiator lower tube bolt
  • Radiator upper front tube bolt
  • Air cleaner assembly
  • Battery and tray
  • Water pump belt
  • Upper radiator hose
  • Engine vent hose
  • Transaxle 10 pin connector
  • Radiator bypass hose assembly
  • Thermostat housing
  • A/C compressor brace, if equipped
  • Water pump mounting nuts
  • Connector hose
  • Water pump




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To install:
  1. Install or connect the following:
  • Water pump
  • Connector hose
  • Water pump mounting nuts and tighten them to 15-22 ft. lbs. (20-30 Nm)
  • A/C compressor brace, if equipped, and tighten the nuts to 15-22 ft. lbs. (20-30 Nm)
  • Thermostat housing
  • Radiator bypass hose assembly
  • Transaxle 10 pin connector
  • Engine vent hose
  • Upper radiator hose
  • Water pump belt
  • Battery and tray
  • Air cleaner assembly
  • Radiator upper front tube bolt
  • Radiator lower tube bolt
  • Lower heater hose
  • Splash shield
2. Fill the cooling system.
3. Start the engine and check for leaks.

Dec 06, 2015 | 2002 Ford Taurus

1 Answer

1996 nissan altima no cabin heat, new radiator, flushed and filled, top hose hot, lower hose cold, newer thermostat checked good


HI Anon.
Remove your radiator cap (WHEN ENGINE IS COLD), run the motor and let it warm up a minute or two, have someone rev the engine a little while looking into the radiator. If the water goes down and/or you see the water moving, your water pump is good. If not this means that your water pump is bad and is not moving enough water through the system. Try Removing your thermostat and run the engine without it. Keep checking the radiator hoses to see if they are the same temperature. If they are not the same temperature the water pump is bad. If they are the same temperature your thermostat is more than likely the culprit. Hope this helps.

May 30, 2017 | Nissan Cars & Trucks

1 Answer

1998 cherokee jeep over heating.took out thermostat changed water pump hoses raditator water seems to not be flowing into block


thermostat in backwards.the part that senses temperature change isn't exposed to the hot coolant inside the engine. , or coolent passages clogged, here is what sometimes will happen:

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They can and will totally clog up, try to flush the system if not too far clogged.

Dec 17, 2013 | 1998 Jeep Cherokee

3 Answers

Ok i got a 2004 chevy monte carlo and it seems to be over heating i changed the thermostate out and i dont believe its the water pump because its not leakn around the seal and i noticed its only geting hot...


YOU SHOULD FLUSH ENGINE BLOCK BEFORE INSTALLING NEW THERMOSTAT.YOU NEED RADIATOR FLUSHED AND ENGINE BLOCK FLUSHED.ALSO REPLACE THE RADIATOR PRESSURE CAP.

Nov 28, 2010 | 2004 Chevrolet Monte Carlo

1 Answer

I have a 1996 saturn sl2. My brother and i have tried to trouble shoot the overheating issue. water flows from the pump to the thermostat, to the engine, then its suppose to go to the radiator through a...


Hello, I believe the coolant flow is from the thermostat to the bottom of the radiator through the radiator and back into the engine from the top of the radiator. Make sure the thermostat is installed correctly, (the spring looking part toward the water pump) No collapsed/plugged radiator hoses. The radiator not restricting flow. Check radiator with a laser temp gun, see if the radiator is cooler near the top than the bottom. Last with the tool for checking to see if there are combustion gases in the coolant to determine if there is a blown head gasket. Hope this helps

Sep 08, 2010 | Saturn SL2 Cars & Trucks

2 Answers

I can't seem to find the thermostat in my 2000 Chrysler LHS 3.5 L Is it in the manifold at the end of the upper radiator hose or elsewhere? I've seen so many answers and haven't yet found a solution. A...


If you were to take the upper radiator hose off the engine, and look into the resultant hole, you would see the thermostat.

The thermostat on all cars blocks water leaving the engine and going to the radiator, until the thermostat warms up enough to open.

While the thermostat is closed, water circulates through the heater hose, straight back to the inlet of the water pump. This circulation prevents hot spots, distributing the heat evenly to warm the engine up, and also brings that warmed water to the thermostat.

When the t-stat gets hot enough to open, water leaves the engine instead of circulating through it, and that allows cool(ed) water to flow from the radiator through the bottom hose to replace the water that left through the upper hose and t-stat.

The stub that the upper hose attaches to on the engine should be part of a small housing that is bolted to the engine. Removing that housing is how you remove the t-stat.

Aug 05, 2010 | 2000 Chrysler LHS

3 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

1 Answer

Want to know how to change a thermostat on my 2004


It Depends on which engine you have, this is how it goes for both. I use a little RTV with a new ring as well.

THERMOSTAT REPLACEMENT (4.2L ENGINE)
Removal Procedure
1. Remove the necessary coolant from the radiator.
2. Remove the generator.
3. Loosen the outlet hose clamp at the thermostat housing. Remove the outlet hose from the thermostat housing.
4. Remove the thermostat housing bolts.
5. Remove the thermostat housing from the engine block.
6. Clean all of the surfaces of the thermostat housing.
7. Clean the sealing surface of the engine block.
Installation Procedure
1. Install the thermostat housing to the engine block.
2. Install the thermostat housing bolts.
Tighten: Tighten the bolts to 10 N.m (89 lb in).
3. Lubricate the inner diameter of the radiator hose with engine coolant.
4. Install the outlet hose to the thermostat housing. Secure the hose with the clamp.
5. Install the generator.
6. Fill the cooling system with specified coolant and concentration. Follow the correct cooling systen bleed procedure for your engine.
7. Inspect all sealing surfaces for leaks after starting the engine.
THERMOSTAT REPLACEMENT (5.3L ENGINE)
1. Drain Radiator and remove the radiator outlet hose.
2. Remove the water pump inlet bolts.
3. Remove the water pump inlet and thermostat from the water pump.
Installation Procedure
IMPORTANT: The thermostat is not serviceable separately. The water pump inlet and thermostat must be replaced as an assembly.
1. Install the thermostat and thermostat housing to the water pump.
2. Install the thermostat housing bolts.15 N.m
3. Install the radiator outlet hose.
4. Fill the cooling system with specified coolant and concentration. Follow the correct cooling systen bleed procedure for your engine.
5. Inspect all sealing surfaces for leaks after starting the engine.

Mar 17, 2010 | 2004 GMC Envoy

1 Answer

Changed expansion tank but light still on any ideas 03 ford escape low coolant level light on dash stays lightup


bad low coolant switch or still low on coolant.

Engine Cooling The cooling system components are the:
  • engine coolant temperature sensor (ECT sensor) (12A648)
  • radiator (8005)
  • degas bottle (8A080)
  • radiator draincock (8115)
  • water pump (8501)
  • water temperature indicator sender unit (10884)
  • water thermostat (8575)
  • dual speed fan motor assembly
The water pump circulates the coolant.
The water thermostat:
  • controls the engine coolant temperature.
  • allows quicker engine warm-up.
The degas bottle:
  • provides a location for fill.
  • contains coolant expansion and system pressurization.
  • provides air separation during operation.
  • replenishes the engine coolant to the system.
The fan motor (8C607):
  • operates only when the ignition switch is in the RUN position.
  • will not operate with the switch in the OFF position.
The engine coolant flows:
  • from the lower radiator hose (8286) to the water pump.
  • from the water pump to the engine block and the cylinder heads.
A closed water thermostat returns the engine coolant to the water pump; an open water thermostat allows the engine coolant to flow to the radiator.
Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level in the degas bottle.
When adding engine coolant, use a 50/50 mixture of clean, drinkable water and engine coolant.
To maintain the integrity of the coolant and the cooling system:

Dec 07, 2009 | 2001 Ford Escape

1 Answer

Engine overheating-----1994 Olds Cutlass Supreme 3.4 liter v/6


There seems to be an air pocket or no antifreeze in engine block. Try this method disconnect upper radiator hose and pour water directly into hose down into engine block until it full. when its filled reconnect hose and fill up radiator. as the vehicle warms up open bleeder valve on the thermostat housing and release air from system. open slowly and BE VERY CAREFUL WATER WILL BE HOT, bleed until you get a steady stream opening and cosing valve. However if all of this don't work. You may have a bad pump. Good Luck

Dec 27, 2008 | 1994 Oldsmobile Cutlass Supreme

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