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Anonymous Posted on Feb 13, 2014
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My check engine light is on after running a diagnostic test , it said that the cooling systems thermostat is faulty but i have no symtoms of that the vehicle is running at a normal temp andnot overheating

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5 Related Answers

Anonymous

  • 4 Answers
  • Posted on Jun 12, 2009

SOURCE: engine cooling fan not coming on

It may be the fan itself. Try to find the plug going to the fan, it should be close to the fan and might plug diresctly into the relay. Use two jumper wires straight from the Bat one from the pos+ side and one from the neg- side and plug them into the two holes in the connector the fan should start WATCH YOUR FINGERS. If it starts its elec prob before the fan if not its the fan.

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Anonymous

  • 353 Answers
  • Posted on Jun 20, 2009

SOURCE: Check Engine light & TN Emissions

mas sensor is dirty

Anonymous

  • 66 Answers
  • Posted on Jun 29, 2009

SOURCE: OVERHEATING, CONSTANTLY FILLING RADIATOR WITH

remove the 3rd spark plug check for signs of coolant. if found you have bad head gasket

Anonymous

  • 1187 Answers
  • Posted on Sep 08, 2009

SOURCE: engine light comes on and says engine overheating

Could be three things: Hopefully the first...
1. radiator fan not blowing. (most likely)
2. Radiator clogged (not likely)
3. Head gasket blown... (very possible)

If #1, system cannot detect fan not blowing. It may be the fuse or the relay switch, disconnecetd wire at fan, or burned-out fan motor.
If #2, Flush radiator
If #3, you will see WHITE smoke out the tailpipe and excessive water drops.
Your new oil will have a "milky" look (check the oil dipstick). That is water.
When engine is COLD, remove radiator cap and start car. You will notice high-pressure "bubbles" squirt out of the radiator, even before the engine warms up.

I hope it is #1. and that this is helpful.

Anonymous

  • 13 Answers
  • Posted on Jun 22, 2010

SOURCE: 2002 malibu runs hot.

Sounds like you have a faulty head gasket or maybe a cracked head.This can cause overheating and the check engine light to come on.The code for the o2 sensor is probably caused by coolant getting into the exhaust system and coating the sensor.The coolant fan may work but it cannot remove enough heat from the rad to make the engine cool off.Try some engine coolant stop leak to see if it will help.This maybe only a temperary fix.Let me know if you need more.MOE

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2000 cadillac deville dts P1652 code definition and how to repair? Also abs code 1252 1253 as well as random abs pump stall code
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P1652 Code Meaning, Causes, Symptoms, & Tech Notes

 Engine-Codes.com https://www.engine-codes.com > p1652
What are the Possible Causes of the Code P1652? · Faulty Cooling Fan 2 Relay · Cooling Fan 2 Relay harness is open or shorted · Cooling Fan 2 Relay circuit poor ...

Code P1652 Cooling Fan 2 Relay Control Circuit Conditions

 AutoCodes https://www.autocodes.com > p1652
Code P1652 Possible Causes · Faulty Cooling Fan 2 Relay · Cooling Fan 2 Relay harness is open or shorted · Cooling Fan 2 Relay circuit poor electrical connection.
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I started my 1999 chevy silverado 5.3 liter this morning, 30 mins later i see a puddle underneath the truck and its running hot, its a steady drip. Also the heater has not been working right. Can anyone...
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Feb 04, 2011 • 1995 Buick Park Avenue
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