Question about 1992 Honda Prelude

3 Answers

Bottom radiator hose cold. upper radiator bulging.

Honda prelude 1992 h22a1 vtec import. bottom radiator hose cold. upper radiator bulging. Thermostat was renewed. Radiator new. Fan does not work on starting or running but works when aircon is on.

Posted by on

  • 10 more comments 
  • ogidor67 Apr 18, 2009

    Thank you all; that confirms my next pick. 99 % anyway the thermo switch is aftermarket @ tridon made. Is it reliable? Thanks again 'cause I was confused how come honda put the thermostat and sensor after the radiator. Most of the cars that I had was after the engine flow. Thanks again, great help.

  • ogidor67 Apr 18, 2009

    Sorry I forgot to answer the thermostat question. The thermostat is original Honda part. Cost me $87.00. Anybody knows where can I get cheaper parts. I enquired this morning in one of honda parts dealer about water pump. They said $350.00 for the parts, (Australia) Melbourne $700.00+ supplied and fitted. Have mercy on us. It is water pump not an Engine. And they also noted that they are not quite sure if they are going to get a right part as it is an import. The aftermarket pump will cost $100-$150.00. from image auto but shown in the book 1997 h22a1 vtec and not 1992.

  • ogidor67 Apr 18, 2009

    Thanks for the Idea; Is it safe at Ebay? too scared to get the wrong part when I really need it on time. Is it easy to replace water pump 'cause it is in the inside of the timing belt cover. Thanks heaps....

  • ogidor67 Apr 18, 2009

    Thank you..

  • ogidor67 Apr 20, 2009

    Thank you; It adds confidence 'cause I really want to learn bits and pieces in this prelude of mine. Anyway how much time do I need to replace it? Is it 2 or 3 days? Is the h22a1 engine's water pump for 1992 varies or different to other h22a1 model? like 1993, 1994....and so on.

  • ogidor67 Apr 22, 2009

    thanks heaps; lots of info. Does the 1992-1996 preludes vtec h22a1 engine have the same water pump.

  • ogidor67 Apr 23, 2009

    Thanks for the clarification. I'll try to order water pump next week..Thanks again.

  • blueextc3221
    blueextc3221 May 11, 2010

    CLICK HERE for an eBay auction for a genuine HONDA brand new water pump vor your vehicle.

  • blueextc3221
    blueextc3221 May 11, 2010

    might be cheaper to look for one on eBay and have it shipped to you!!

    Hondas are pretty popular in the US, and parts are readily available!!

  • blueextc3221
    blueextc3221 May 11, 2010

    water pump has failed.

  • Anonymous Mar 17, 2014

    top radiator hose hot bottom hose cold radiator frozen at one time

  • Anonymous Mar 25, 2014




3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 72 Answers

The fan won't come on because the thermoswitch is in the bottom of the radiator, without coolant flow the switch never gets hot. Just because a part is new doesn't mean it is good, is the thermostat an aftermarket part ? I would take out the thermostat (leave the gasket) and see if the bottom hose gets warm. If the bottom hose does not get warm, you may have a blockage or bad water pump

Posted on Apr 18, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 15,935 Answers

Well - "easy" is relative.
To me - it may be easy - tou you... only you can be the judge.
If you feel comfortable replacing the timing belt properly - then i'd go for it.
Just know - if you have problems - you will have to tow the vehicle to the mechanic.

I have used eBay since the early 90's and have never gotten taken.
The sellers rating is important - and look at the feedback of the seller to make sure they are living up to their end of the deal.

When you have a new pump - re-post and we can give you some help and tips if you want to tackle yourself.

A Haynes manual would be a great help to you also. Look for those on eBay as well. They basically tear down a car and put it bcak together. EVERY PIECE.

Thanks for using FixYa - a FixYa rating is appreciated for taking the time to answer your FREE question.

Posted on Apr 18, 2009

  • 1 more comment 
  • blueextc3221
    blueextc3221 Apr 18, 2009

    Here are the directions for replacing the water pump.

    You can decide wether it is within your skillset to replace...

    The original radio contains a coded anti-theft circuit. Obtain the security code number before disconnecting the battery cables.

    1. Disconnect the negative battery cable.

    2. Drain the cooling system into a suitable container.

    3. Remove the accessory drive belts, the valve cover, and the upper timing belt cover.

    4. Set the timing at TDC/compression for the No. 1 piston.

    5. Remove the crankshaft pulley and lower timing belt cover.

    6. Remove the timing belt. Replace the timing belt if it is contaminated with oil or coolant or shows any signs of wear and damage. Refer to the procedure located in this section.

    7. If equipped with a Crankshaft Speed Fluctuation (CKF) sensor at the crankshaft sprocket, unbolt the sensor bracket and move the sensor out of the way. Cover the sensor with a shop towel to keep coolant off of it.

    8. Unbolt the water pump and remove it from the engine block.

    To install:

    1. Clean the water pump and O-ring mating surfaces before installation.

    2. Install the water pump with a new O-ring. Coat only the bolt threads with liquid gasket and tighten them to 108 inch lbs. (12 Nm).

    3. Install the timing belt. Be sure it is fitted and adjusted properly. Refer to the procedure located in this section.

    4. If equipped, install the CKF sensor and tighten the bracket bolts to 108 inch lbs. (12 Nm).

    5. Install the lower belt cover and crankshaft pulley.

    6. Install the upper timing belt cover, the valve cover, and the accessory drive belts.

    7. Be sure the cooling system drain plug is closed. Refill and bleed the cooling system.

    8. Connect the negative battery cable and enter the radio security code.

    9. Start the engine, allow it to reach normal operating temperature, and check for coolant leaks.

    2.7L Engine

    1. Disconnect the negative battery cable.

    2. Drain the coolant into a sealable container.

    3. Remove the timing belt covers and the timing belt. Refer to the procedure located in this section.

    4. Remove the timing belt tensioner.

    5. Remove the 9 water pump bolts, take note of their locations for reinstallation.

    6. Remove the water pump from the engine and discard the O-ring. Remove the dowel pins.

    To install:

    1. Clean the water pump mounting surface and O-ring groove, then install the dowel pins to the engine.

    2. Install a new O-ring to the engine, then install the water pump. Be careful not to pinch the O-ring. Install the mounting bolts to their original locations. When tightening the bolts, be sure that the O-ring does not bulge out of the groove. Tighten the 6mm bolts to 108 inch lbs. (12 Nm), and tighten the 8mm bolts to 16 ft. lbs. (22 Nm).

    1. Inspect the water pump, making sure that the pump turns freely.

    2. Install the timing belt tensioner.

    3. Install the timing belt and timing belt covers. Refer to the procedure located in this section.

    4. Refill and bleed the air from the cooling system.

    5. Connect the negative battery cable and enter the radio security code.

    3.0L Engine

    1. Remove the timing belt. Refer to the procedure located in this section.

    2. Remove the timing belt tensioner.

    3. Remove the 5 water pump mounting bolts, then remove the pump and seal.

    1. Clean the seal groove and mating surfaces.

    2. Using a new seal, install the water pump. Tighten the bolts to 104 inch lbs. (12 Nm).

    3. Install the timing belt tensioner.

    4. Install the timing belt. Refer to the procedure located in this section.

    5. Refill the cooling system.

    6. Start the engine and check for leaks.

    7. Top off the cooling system if necessary after the engine has cooled.

  • blueextc3221
    blueextc3221 Apr 20, 2009

    Oh i think i misread the question, Yours is a 1992 prelude? i thought 1997.

    here is the correct procedure for the 1992 Prelude.

    This operation requires removal of the timing belt. Do not attempt to replace the water pump if you are not familiar with timing belt procedures.

    1. Disconnect the negative battery cable.

    2. Turn the engine to align the timing marks and set cylinder No. 1 to TDC on the compression stroke. Once in this position, the engine must NOT be turned or disturbed.

    3. Drain the engine coolant. Use a clean container and cap it when full. Wipe up spillage immediately.

    4. Remove the Timing Belt

    1. Remove the bolts holding the water pump; pay attention to the locations of any bigger or longer bolts.

    2. Remove the water pump and the O-ring.

    To install:

    1. Replace the O-ring and install the water pump. Make certain the O-ring does not deform or come out of place. Tighten the mounting bolts to 9 ft. lbs. (12 Nm). On the Accord V-6, tighten the 8mm bolts to 16 ft. lbs. (22 Nm) and the 6mm bolts to 9 ft. lbs. (12 Nm).

    2. Install the timing belt.

    3. Refill the engine coolant.

    4. Connect the negative battery cable.

    5. Start the engine, allowing it to idle. Check the work area carefully for any sign of fluid leakage or any indication of the belt rubbing or slapping the covers. Bleed the cooling system.

    6. Shut the engine off. Reinstall the splash shield.

    CLICK HERE for the timing Info....

    If you're a shadetree mechanic - allow 16 hours for this job.

    If you have never worked on cars before (especially timing) you could run into DAYS :D

    A Professional could have it done in about 8 hours.

    Thanks for using FixYa!!

  • blueextc3221
    blueextc3221 Apr 22, 2009

    No - the Prelude (only) pump changed in 1997

    1996 will not fit.


  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Sounds like you have a plugged radiator have it repaired or replaced.

Posted on Oct 25, 2012

  • Leland Fouse
    Leland Fouse Oct 25, 2012

    never mind if it is a new radiator, but you do have a circulation problem

  • Leland Fouse
    Leland Fouse Oct 25, 2012

    the top hose is a return the bottom hose is the intake.


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

If my top radiator hose gets hot but not my bottom one does this mean my thermostat is bad

I don't know how did you test your radiator but if you apply below steps you can clarify your problem easier.

If you want to test your radiator:
A) Park your car (it takes more longer to get real temperature values, if the car is moving)
B) Start the engine (don't forget to engage handbrake)
C) Wait around 10 to 15 minute
D) If your top radiator hose gets hot and bottom radiator hose gets warm; your radiator is functional. (In few minutes your radiator fan suppose to work)

If bottom radiator hose is still cold, it means there is a problem at thermostat. If you see any leakage at thermostat housing at the end of above step C, you need to renew thermostat housing gasket too. Even if you buy new thermostat, i suggest you to test it before assembly. If new thermostat doesn't open enough, your car may run so hot.

If you would like to test your thermostat:
A) Boil water in disposable bowl (thermostat may exposure chemical substances)
B) Put thermostat into boiling water.
C) If thermostat opens totaly, it is ready for assembly.


Nov 20, 2014 | 2000 Jeep Grand Cherokee

1 Answer

93 civic vtec auto. new thermostat, new cts, coolant temp. sending unit, coolant temp. switch, relay. still radiator fan not working. condenser fan is now working. antifreeze at the radiator is about 195...

check your relays and or fuses that go to your fan or fans ...also make sure you check your fans connections ...something in the wires can be faulty

Oct 22, 2013 | Honda Civic Cars & Trucks

1 Answer

Where is the thermostat located on a 1992 topaz

On the top drivers side of the engine where the upper radiator hose connects. Follow the radiator hose from the radiator to the motor (upper hose) this should bring you to the corner of head below the valve cover. the hose will be connected to the water outlet housing , this will have to be removed in order to expose the thermostat The thermostat is in the same assembly that the Fan sensor screws into and is removed by taking out 2 bolts.

Nov 10, 2010 | 1992 Mercury Topaz

1 Answer

My radiator on my 1994 toyota hilux sulf is over heating just sarted in last few days. Temperature gauge fluctuates when i turn air conditioning do i fix this

First check if you have any leaks in the cooling system , then check if level is correct(radiator and expansion tank , check level when car is cold , never open radiator when it's hot).
Then verify operation of radiator fan , if it's electrical fan it should comes on when temp. goes over normal,
if it's a clutch fan- it should pick up a speed and be more loud. If fan is not on and engine is starting overheating , check upper and lower radiator hoses.
If upper hose hot and lower hose cold or warm then you might have stuck close or prtially closed thermostat , difference between lower and upper hoses when t/stat works ok is about 10-15 degrees,
not really noticeable for hand.So if you don't feel a lot of difference between hoses temp. , and fan is not on , check fan or fan clutch itself.
If lower hose cold , replace thermostat and purge system.
If everything above is working properly , and it's still overheating , you may have bad water pump or head gasket.

Jun 18, 2010 | 1986 Toyota Pickup 4WD

2 Answers


Did you replace the fan? How about the fan switch?

Here is some stuff to read about this system....please let me know what's up!

This switch is the primary controller of the operation of the radiator fan(s) used for cooling. When the coolant in the system reaches a pre-determined temperature, the fan switch closes and completes a circuit. The fans will be brought on. Generally, the switch communicates with the fan relay, although the later PGM-FI cars send the signal through one of the many solid-state controllers first. Do not assume that the switch is the only component in the radiator fan circuit which controls its operation. There are many other components whose failure may prevent the radiator fan from operating. If the fans are not working when the engine is very warm, check the fuses first.
On all vehicles except 1990-95 Accords and 1992-95 Preludes, the fan switch is located in the bottom of the radiator. On 1990-95 Accords (except V-6) and 1992-95 Preludes, the switch is located in the housing at the rear end of the coolant connecting pipe. This is the pipe running along the outside of the engine, just above the oil filter. The switch the only electrical component in the housing. On the Accord V-6, it threaded into the side of the coolant crossover pipe (not next to the bleed bolt) on the transaxle side of the engine.

Nov 19, 2009 | 1991 Honda Accord

1 Answer

Where is the thermostat located on a 1991 honda prelude

its located on the upper radiator hose. You could see a joint in which the hose is attach. remove the 2 bolts and make sure after replacing it to seal it properly before bolting it back.

Jul 10, 2009 | 1991 Honda Prelude

2 Answers

Runs Hot! Need to know where Thermostat is located.

most of the time it is where the outlet radiator hose attaches to the engine.

May 28, 2009 | 1992 Honda Accord

1 Answer

My 1992 taurus has a bad thermostat.

follow the upper radiator hose to the engine that is the thermostat housing when the car is completly cold remove the upper hose and then the housing remove the gasket and thermostat replace with new one and reinstall in reverse order then fill radiator and let the car run with the radiator cap off untill the thermostat opens then top off the system with antifreeze and close radiator cap and let it run and check for leaks

Apr 13, 2009 | 1992 Ford Taurus

2 Answers


Intake valve clearance 0.15mm-0.19mm (6-7 thou); Exhaust clearance 0.17mm-0.21mm (7-8 thou). All measurments COLD engine. 2.2 VTEC Prelude engine 1992-1996, import and UK.

Feb 22, 2009 | 1994 Honda Prelude

Not finding what you are looking for?
1992 Honda Prelude Logo

1,190 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts


Level 3 Expert

76649 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Honda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides