Question about 2001 Honda Civic

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2001 honda civic ex 206,000 miles. Overheating. Changed water pump, flushed radiator, changed thermostat, tested fan (good), pressure tested engine (good). Replaced fan sensor connection. Had sit for 30 minutes at a shop running but didnt overheat. Drive for about 20 minutes and stop at a light and it begins to overheat. Once moving the temp goes down. All repairs and tests were done at a Honda dealership . 1500 bucks later(got a new timimg belt since the pump was off) and still the same problem.

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  • Honda Master
  • 42,037 Answers

The fan is not operating properly
if it is a viscous fan hub( fan clutch ) replace it
if electric fans check the relay/s and coolany temperature sensor for correct operation
chweck all wires for continuity and connection faults

Posted on May 22, 2017

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Posted on Jan 02, 2017

  • 337 Answers

SOURCE: location of air filter honda civic 2000

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528018f440

Posted on Dec 10, 2008

  • 77 Answers

SOURCE: overheating from leak not visible

Hook up a cooling system pressure tester. If you have a pin point leak, the pressure from the tester will shoot coolant out of the leaking area.

Posted on May 17, 2009

  • 44 Answers

SOURCE: Have a 2002 Honda Civic HX that when idling the heat stops

I would check o2 sensors but to tell you the truth my dad bought a new thermostat that was suppose to open at 160 degrees his temp. got to 220 degrees before but check o2 senors and thermostat

Posted on Feb 10, 2010

  • 248 Answers

SOURCE: What could make my 03 civic ex overheat and cool

your heater has apparently restricted the coolant flow....hopefully a good system back flushing will cure the problem....use a flush obtained from a parts house....I would buy the hose kit for flushing as well...good luck to you

Posted on Mar 04, 2010

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  • 133 Answers

SOURCE: 2003 Honda Civic LX 90k miles replaced

it is possible that when the water pressure rises in your radiator, and the radiator shoots the water into the reserve tank, that hose is not properly put on(happens alot when changing radiator) and the coolant leaks rapidly through there. another thing i suggest is observe your fan behavior. fans usually are only supposed to turn on for a couple of seconds, around 10 or 15. park your car, and let the car reach normal operating temperature. when the car starts to over heat, check to see if your fans turn off at all. if they do, then it is most likely the tw swith,or the water temperature switch. if you notice the fans stay running, then i suggest obesrving your hoses and replaing any that spill coolant because even a pressure test on your cooling system can miss a small pucture in a hose, which after a while will cause your coolant to leak, and your car to overheat. hope this helps. if still nothing, drop a comment and ill help you out somemore, but for now, this is the practical thing to do. hope this helps, goodluck.

Posted on Jun 05, 2011

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Over heating


How did you check thermostat? Did you check coolant level. Is the auxiliary water pump leakinh

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2001 galant v4 overheating


Don't remove radiator cap when engine is hot.

Is your reservoir full to the right level? Check hoses for a leak. I would have the system flushed if there are no hose leaks in case air is in the system which can cause overheating. This can be done for about $50-$100 or less at many places. Sometimes when a thermostat is replaced the system isn't bled correctly. I hope its not your water pump, but it may be.

Good luck.

Mar 08, 2014 | Cars & Trucks

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I'm having problems with my 2000 honda. It keeps


A few questions first...are you sure its overheating and not just a bad temp sensor? is yes then how many miles on car? if over 90K than did you have the water pump replaced with your timing belt?Is your fan coming on at all? Is your radiator full?If your water pump has been changed and your radiator is full and your fan is working properly and you have a new thermostat then you should take your radiator off and have it flow tested to make sure its operating properly, and no you cant just pour water through it to tell if its working properly.

Oct 29, 2011 | 2000 Honda Civic

2 Answers

2002 Honda Civic...The car is overheating randomly. Replaced the thermostat,and fan relays. Car runs fine and then randomly overheats with gauge going way up and then sometimes coming down.Overheating and...


RADIATOR COOLING FAN NOT RUNNING COULD BE BAD ENGINE.COOLANT TEMPERATURE SENSOR IS FAULTY IF COOLING FAN IS NOT TURNING ON AT SET TEMPERATURE OF 196 TO 203 DEGRESS.CHECK SEE COOLING FAN RUNNING WHEN ENGINE RUNNING HOT.IF YES FLUSH RADIATOR , FLUSH ENGINE BLOCK, HEATER CORE,REPLACE RADIATOR CAP.MAKE SURE YOU HAVE 50/50 ANTIFREEZE AND WATER IN THE COOLANT SYSTEM.CHECK WATER PUMP WEEP HOLE IF LEAKING REPLACE WATER PUMP. IF COOLANT FAN DONT TURN ON 196 TO 203 DEGREES, YOU HAVE FAULTY COOLING FAN,SHORT IN FAN WIRING OR ENGINE COOLANT TEMPERATURE SENSOR FAULTY.IGNITION TIMING WILL CAUSE ENGINE TO OVER HEAT.

Aug 17, 2011 | 1999 Honda Civic

1 Answer

I have a 1993 Honda Civic EX (2dr) which continues 2 overheat! The radiator has been replaced 3 times. The 1st time it had a hole, 2nd time it was determined that it leaked @ the seams when a pressure test...


any motor swap? have a block test done to check for the headgasket... it's possible you have warped the head with the list of cooling issues you have had.

Aug 06, 2010 | 1993 Honda Civic 4 Door

2 Answers

Honda civic 2004 changed radiator,thermostat control,changed cylinder head with machine shop, new fan...still temp rises beyond half..mechanic told me to fix engine block and machine shop again cylinder...


the gauge is going above half, but is it actually over heating? could be a faulty coolant temp sensor sending an incorrect temperature. when you changed the radiator, was the rad cap also changed? if the cap is not holding correct pressure, it will lower the boiling temp of the coolant and cause it to overheat. an infra red thermometer is very useful for diagnosing this, point it at the thermostat housing and see what the temp is there, that will tell you whether the temp gauge is accurate or not. good luck!

May 19, 2010 | 2004 Honda Civic

3 Answers

What could make my 03 civic ex overheat and cool down then overheat again while losing heat inside??? Already replaced radiator, water pump, thermostat.... motor


your heater has apparently restricted the coolant flow....hopefully a good system back flushing will cure the problem....use a flush obtained from a parts house....I would buy the hose kit for flushing as well...good luck to you

Mar 04, 2010 | 2003 Honda Civic

2 Answers

1994 Honda Civic LX\overheating within 2 mile drive


Remove and raise upper hose at thermostat end and remove lower rad hose.
Fill rad with a hose and watch for flow from bottom rad hose and/ or bottom rad hose connecton.......water should fall though rad easily.
Honda rads are cheap.....any restriction....replace rad.

Remove thermostat....fill thermostat housing with hose and watch for water flow at bottom rad hose.
Flush good.

Remove heater hoses.......flush back and forth until a good flow is present "With heater control set to hot" if no or poor flow....replace heater core.

Stop leak can plug everything.

Also.......not likely causing over heating....but ....at your mileage,if you do not know if the timing belt has been changed.....CHANGE IT NOW!
Water pump is optional at this mileage.

Aug 23, 2009 | 1998 Honda Civic

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