Question about 1994 Nissan Sentra 4-Door

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Over heating just changed thermostat and didnt seem to work there no engine light on either. what do you think might be the case?

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  • Greg Margossian
    Greg Margossian May 11, 2010

    Are there any leaks under the front of the car or is there any white smoke from the exhaust?

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Water pump

Posted on Apr 19, 2009

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2000 Jeep Grand Cherokee Leredo is overheating I changed thermostat also my fan is not working and keeps saying coolnd low and its full and the heat in the car will not run hot it stays cold


Sounds like some type of blockage in the system.
with the car cool open the radiator cap, start the engine to see if the coolant has flow.
Even though you just put in a new thermostat it can still be bad,I've had this happen to me a few times.
If the flow seems slow to nill you can also try removing the thermostat all together and giving that a try.
You can test the thermostat in a boiling pot of water.
If ir is totally not the thermostat then there could be a few cooling chambers blocked in the radiator.
This can be repaired in most cases by a "Rod out" at a local radiator shop.
I think the problem is more twards the thermostat for the reason you stated about your heater.
good luck,Gary.

Sep 21, 2011 | 2000 Jeep Grand Cherokee

1 Answer

Check engine light was on, so i had it scanned .probable causes 1. low on antifreeze 2. bad thermostat 3. ect sensor 1. antifreeze was fine 2. heat is working so i dont think its a...


No code will tell you about coolant levels
or thermostat
In fact, codes do not tell you anything is wrong

They direct you to one of the vehicles systems,
that has a sensor out of range.

Then you have to component test,to find out
why the code was set

What code is there now?
Who is diagnosing the vehicle?

I think you missed the issue and changed the etc sensor

Mar 06, 2011 | Mercury Marquis Cars & Trucks

1 Answer

The coolant is low, I refilled it. I replaced the thermostat. The heat gauge goes all the way to high when I am driving fast, but at idle it cools down to the temperature it should be. I stop at a red...


first thing i think is that when you changed the thermostat you didnt get all that air bubbles out of the cooling system. 2nd yes it would be the water pump. really simple as long as you havent overheated it head gasket would be fine

Jan 20, 2011 | 1999 Ford Escort

1 Answer

My pulsar in overheating put new coolant in no change fans dont seem to be working but engine was hot and gauge showing only halfway, cant find the thermostate is it in the housing the top hose is...


Make sure the fans are coming on or it will over heat. If the fans come and the gauge is reading hot check the thermostat. Follow the top radiator hose to the engine block it probably has 2 bolts holding the thermostat housing on.

Apr 17, 2010 | 1990 Nissan Pulsar

1 Answer

In cold weather my heating doesn't blow hot air


When your engine thermostat has failed or is sticking open, the engine fluid isn't able to reach a temperature that lets your heater core get hot enough to produce worthwhile heat to blow into the passenger's compartment. It is also not good for your engine to run below design temperature.
If you have a dashboard temp gauge, if your thermostat is stuck open, that gauge will probably stay in the cold area.
I would think that that is the problem, and I would have the thermostat changed (not a very difficult or expensive job).
Hope this helps you.

Jan 03, 2010 | 2001 Honda CR-V

1 Answer

I have a 2001 Volvo S40 Turbo. Several months ago, My cars turbo didnt seem to be working. and the car was spitting and sputtering. I had the codes checked and found a misfire on Cyl 1 and 2. Or possible...


Replace the mass air flow meter.Thats the sort of problem you will get when its faulty.And this should be changed every 90.000.I think your fuel consumption has gone up aswell due to the air flow meter.hope that was helpfull.Good luck.

Aug 01, 2009 | 2001 Volvo S40

2 Answers

99'concorde stalls,wont start until cool again..


When cold, your engine runs from a different computer mode than when warmed up...It seems that when you reach temp, the normal "run" program transitions in (undercomplicated version) Usually when the signal from the temp sending unit does not change (bad sender) the engine will remain running but will run rich. Usually if the sending unit wire is disconnected it will also remain in "cold" mode. I'm thinking that possibly the sender is internally shorting out or the computer isn't working correctly. If you have an engine light on, likely you can retrieve a code that may point you to something in that area. Or, since sender isn't very costly, change it and see if the problem clears up. (I'm not a big fan of just putting in parts without testing, but in this case it may pay off)
Good Luck

Jul 27, 2009 | 2000 Chrysler LHS

1 Answer

2004 Mitsubishi Eclipse-no heat?


check thermostat and water pump.the water pump could be working good enough to ke the engine cool but dosnt have the pressure to push it thru. i ran in to this prob be for no heat and the engine didnt over heat. the antifreeze ate the blades off the water pump. it was crazy.

Dec 23, 2008 | 2002 Mitsubishi Eclipse

1 Answer

The engine is over heating


are you loosing antifreeze and then overheating
these cars had intake gasket problems and would leak antifreeze into the intake and some times into the oil.

Sep 10, 2008 | 1996 Oldsmobile Cutlass Ciera

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