Question about 2000 Chevrolet Silverado

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Cheverolet 2500hd truck thermostat stuck closed

Temp moved to normal running range,heater would not get hot and temp moved a little higher than normal

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I think it's the hot water valve also, at least check it by feeling the hoses that go from the heater to the engine,
If hoses are hot, then its ok. it's a sign that hot water is circulating
and you should go ahead and drain the coolant and see if it's dirty, or has stop leak, and refill the radiator with fresh coolant, be sure to pour in as slow as you can. be patient
now at least you changed your coolant, and no air pockets trapped in the system. go from there. if it's the hot water valve you can look it up on you tube.

Posted on Apr 01, 2014

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Posted on Jan 02, 2017

  • 16 Answers

SOURCE: heater want get hot

heat exchanger not working look under dash find where cable goes from heater controls the hot and cold switch move back and forth to find it its not opening all the way when you move it to hot push it farther by hand this will open the airway for your heater core

Posted on Nov 26, 2008

  • 3 Answers

SOURCE: Engine running hot

Sounds like your antifreeze level is low. When it flows you get hot air and when there's an air bubble due to lack of antifreeze all you'll get is air.

Posted on Aug 29, 2008

  • 14 Answers

SOURCE: 2005 MALIBU - HEATER BLOWS BUT NO HEAT

could be vaccum leak in the a/c panel where the flappers open and close to allow hot and cold air to blow

Posted on Jan 03, 2009

  • 3600 Answers

SOURCE: 2001 Chevy 2500HD 6.0L, Hard starting.

Check the fuel pressure, bad fuel pump or sock on the fuel pump and fuel filter check spark plugs and check distributor cap, a fuel pump is $273.00 or a bad injector $110.99 or BWD Fuel Vapor Pressure Sensor for $35.99 any of these parts could cause the problem, so without doing a fuel pressure test it is a guess, if the vapor switch is bad it could cause a long crank time if the fuel pump is bad it has a check valve in the fuel pump, if the check valve goes bad the pump can't maintain fuel pressure so on start up the fuel has to pump from the tank all the way up to the fuel rail, if the injectors is bad it could leak after engine shut down and cause you to lose fuel rail pressure. Also the fuel vapor sensor could be stuck open and could cause the problem, all need to be tested, you can rent the fuel pressure tester from AutoZone or advance auto or Shucks they return your money when you bring the tool back as long as you buy the parts to repair it from them. That would be the first thing I would check fuel pump pressure and if you replace the pump then change the fuel sock as well. That model was not meant to burn ethanol and can kill the fuel sock the fuel pump and filter.

Posted on Jul 04, 2009

pumpkinman
  • 1144 Answers

SOURCE: Getting no heat but temp gauge shows engine HOT.

thermostat is sticking

Posted on Jan 03, 2010

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Only warm air comes out of heater on 89 cutlass ciera core blew out, new thermostat what controls air temp in heater system. Lever moves from cold to hot easily but can't tell if it moves anything under...


#1 Listen if you hear the blend door flap open and close if you do then working good.

#2 run car to normal temp and touch both heater hoses and make sure temp is similar if one is hot and the other warm then your heater core is clogged and most likely that can be the problem it build lime from having tap or well water in coolant system distilled water is recommended but who uses that.

#3 run car when cold with cap off @ 2k rpm and top off radiator. Then close cap and continue to rev @2k until normal temp if heater hoses are not equal in temp heater core clogged.

Jan 22, 2015 | 1989 Oldsmobile Cutlass Ciera

1 Answer

HEATING ISSUES


One way to tell a bad thermostat in a car is if the car overheats frequently even if there is water in the radiator.Stuck open - no heat from heater, temp gauge hardly moves off of cold.
Stuck closed - overheats engine, temp gauge quickly climbs to hot.listen for any rubbing, grinding, or whining noises from the pump. look under water pump while running, if pump is going bad. water will come out of weep hole on the bottom of the pump. good-day!

Apr 07, 2014 | 2005 Kia Sorento

2 Answers

00 Ford Focus runs cold


Am sure you have a thermostat stuck open, i suggest replace it and make sure the aantifreeze is in the correct level.

Dec 09, 2011 | 2000 Ford Focus

2 Answers

It doesn't get warm or hot at all. and when or if it does get warm it takes FOREVER.


I assume you are talking about your engine temperature gauge reading? I had a problem with my 1996 Caravan thermostat (V6 3L). It can get stuck wide open and never allow the engine to operate at the specified temperature. On my vehicle, the thermostat has a metal tab that would prop the valve wide open if it failed. I think the thought of the designer was better to be stuck open than full closed I guess. Anyway, my vehicle temperature would never reach normal range with it stuck open. For my vehicle it is 195 F. This time of year, it would take a very long time before your engine would reach normal running temperature. The interior heater would also take a long time since the engine is also cooler. If your vehicle is newer it can also cause the engine check light to come on because this would affect the emission control systems and keep your engine in a cold engine mode loop...

Not knowing a lot of details of your situation, I would check:

The gauge is working correctly and plugged into the temp sender near the thermostat.

You have the correct fluid level (Please be careful checking this)

Your heater core and engine radiator not clogged with sediment

Flush out your radiator and heater core

Replace your engine thermostat with the specified temperature range your vehicle requires (parts store tech can help you obtain the correct one)

Good Luck.

Jan 01, 2011 | Dodge Stratus Cars & Trucks

1 Answer

The temp guage pegs out on my 2005 uplander. I have changed the thermostat and flushed the radiator. The water pump seems fine and both radiator hoses get hot after it runs for a while. The fans kick on...


Having a blocked heater core will not make the engine over heat. You will just not get any of the heat from the fluid that would normally be pushed through the heater core because your core or cores are blocked (I think you have two cores if you have a rear heater.). The engine does not need your interior heater cores to keep cool. When you select "heat" on your console, either a valve opens up and allows fluid to move through the lines to your heater cores and or an air duct opens to the cores to blow air across them...


Did your heater work before your work?

Does the gauge stay pegged or does it fluctuate?


If your gauge now fluctuates after your work, it would indicate to me that there is air trapped in the engine or bubbles passing by. The air does not cool the engine block as well so the temp will rise quickly. It will then cool a bit as the coolant splashes by. If your gauge is staying hot and never moves, it could mean: you are missing a lot of coolant, trapped air near the temp sender, or your thermostat is not opening. A closed thermostat would make the gauge go all the way hot and stay hot. The thermostat can be checked with a pan of boiling water on the stove. When boiling, put the thermostat in the water and check to see if it opens. It is also important that the thermostat is installed in the correct direction. The temp sensor much be on the engine side. I am also assuming your pump shaft is not sheared and is still connected to the impeller and it is spinning as well. You can take your belt off and move it by hand to see if you feel any resistance. If you are sure the thermostat is opening and the pump circulating, I would then check and see if you have air in trapped in your system. I looked at my Uplander and noted a lot of hoses and metal pipes at a higher level than the filler neck of the radiator. Perhaps, when you filled your system back up from the radiator, that a lot of air got trapped in the upper part of the engine and the heater lines. I also saw that there were little brass valves near were the hoses connect near the pump and on the driver side. I would suggest running the engine and open and close the little brass check valve on the divers side to see if you have fluid or just air coming out. I wouldn

Nov 12, 2010 | 2005 Chevrolet Uplander

3 Answers

Why my heater in 2000 plymouth breeze only gives a little heat? Could it be a hose ? I know it's not the thermostat,the blowers ar working. I am wonding if theres some hoses that could be leaking?I don't...


it could be the cold air blend door or the thermostat is the engine temp up to the middle of the gauge or close to it if so then thermostat is ok if not then go ahead and replace it.

Jan 07, 2010 | 2000 Plymouth Breeze

1 Answer

Heater takes along time to warm up and gets cold at idle or parked


Sounds like your thermostat is stuck open and not keeping the coolant in the motor long enough to get it good and warm. Try replacing the thermostat first and doing a good flush on the coolant system. Pay close attention to the heater core when you flush the system . Make sure it is on hot while you flush.

If that does not help, (and you can rally check this first) you may have a problem with the flow into the heater core. Feel the two hoses going into the firewall when the engine is hot and see if the hoses are hot going in and out. If you have a laser temp gage you can check the surface temp. One should be a little higher than the other.

Hope this helps.

Nov 22, 2009 | 2002 Buick Century

1 Answer

97 GMC Safari Van - Heater takes forever to blow hot air. Could this be a thermostat problem?


Hello,

Humm I make the assumption that you don't have overheating problems. Yes, sounds like a thermostat is stuck open. If you have a gage on the dash you may also notice that the engine temp takes a long time also. Sometimes when you sit a light for a while the temp edges up and starts to get warm....then when moving down the road a higher speeds the temp cools off again. this does this because the thermostat may be stuck open and it cools the heated water in the engine when moving. Also, check the coolant level in the radiator. (only do this when cold!!!!!!!!) ok????? NOT HOT! low coolant can affect how the heater performs. (low volume)

Hope this helped. :)
Chris

Jan 03, 2009 | 1997 GMC Safari

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