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Where is the thermostat located on a 2002 blazer 4.3 6cy Ls needs to be change running hot

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6ya6ya
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Posted on Jan 02, 2017

  • 118 Answers

SOURCE: 2000 blazer ls heater problem. Changed thermostat

I'm not sure if you heater control valve is vaccuum operated or if it cable operated. If it is vaccuum operated the valve could be bad or you have a vaccuum leak to the valve. If your valve is cable operated then you most likely have a clogged heater core. Please rate my answer.

Posted on Dec 09, 2009

skychief2001
  • 21873 Answers

SOURCE: Overheating problems for 1987 chevy K5 Blazer

Is it possible the replacement engine has a water pump that turns the opposite direction from the original ?
The thermostat has to be open to allow flow thru the radiator, have you tried running without a thermostat to check flow ?

Posted on Jul 25, 2012

  • 1 Answer

SOURCE: 2001 blazer runs hot with new thermostat

You might need a new temperature sensor.

Posted on Aug 06, 2012

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3 Answers

Car run hot what is the problem


First thing to check is probably a stuck thermostat. Then the water pump. Head leak. The price and ease of most thermostats is usually replaced first, then further troubleshooting if needed.

Apr 22, 2014 | 2000 Lincoln LS

1 Answer

2001 blazer runs hot with new thermostat


You might need a new temperature sensor.

Aug 06, 2012 | 2001 Chevrolet Blazer

1 Answer

Overheating problems for 1987 chevy K5 Blazer


Is it possible the replacement engine has a water pump that turns the opposite direction from the original ?
The thermostat has to be open to allow flow thru the radiator, have you tried running without a thermostat to check flow ?

Jul 24, 2012 | Chevrolet Blazer Cars & Trucks

1 Answer

The car keeps running hot


Check to see if the waterpump is still good, if thats not the case then u maybe looking at a blown head gasket.

Nov 21, 2011 | 2004 Lincoln LS

1 Answer

I ask a question 2 days about why my car was running hot. You said replace the engine tempture sensor. Can't locate it. Someone said it was the oil sensor and tempture sensor are the same, but the one...


The engine temp sensor is near the thermostat toward the front of the engine. Is the car actually running hot? I would measure the actual water temp and be sure before I started just replacing sensors.

May 07, 2011 | 2002 Lincoln LS

1 Answer

These show up on computer p0101 maf sensor p0128 thermostat p0155 02s heater circuit im not getting power i need to now all the problems & solutions i have 85700 miles 2002 chevy blazer is this...


Ok, it's not the transmission.
P0101 maf sensor ( mass air flow) sensor. Change the sensor, it is located in the air intake hose that runs from the air filter housing to the throttle plate/ throttle body. Disconnect the wire from it and loosen clamps ( if equipped) and pull hose from it.
P0128 thermostat is below temperature specs, change to a 190 or 195 degree thermostat. auto parts store should be able to tell you which one you need.
P0155 the heater circuit in the oxygen sensor is bad, need new one. That is on bank 2 sensor #1. If it is a V6, looking at the engine, it would be on passenger side, screwed into the exhaust pipe near the exhaust manfold.

Sep 22, 2010 | 2002 Chevrolet Blazer

1 Answer

1990 Lexus Ls 400. What tempture is my car suppose to run at?


your car should not be near that, it should stay at the middle line or a little under. You need to keep an eye on your radiator fluid level. I just changed the radiator and thermostat in my wifes car. DO NOT DRIVE YOUR CAR IF ITS RUNNING THAT HOT, IT WILL BLOW YOUR MOTOR!!!

Jul 25, 2009 | 1993 Lexus Ls 400

2 Answers

2001 Lincoln LS running hot.


Change the thermostat. it is located at the end of the a radiator hose. The hose attaches to the thermostat housing outlet . The thermostat is under the housing. Also have it scanned for a trouble code . It could be the temperature control sensor.

Jan 11, 2009 | 2001 Lincoln LS

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