Question about 1993 Honda Accord

2 Answers

Overheating at higher speeds - 1993 Honda Accord

Posted by on


2 Answers

  • 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.

  • Honda Master
  • 2,359 Answers

When the car is completely cool,check the electric fan(s) for smooth rotation.

Clean/check/change the thermo sensor,contact and wire.


Excavate air pocket in coolant system / check for head gasket leak

This test will kill two birds with one stone.




You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!


Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Top of the coolant reserve tank

Let it ran for 10-15 minutes.

Monitor for air pockets escaping from coolant reserve tank.

Small amount of bubbles is OK at 1-5 minute mark

After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.

If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.

Give the thermostat host few gentle taps.

If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.

Let engine cold down and top off coolant reserve tank.

Start monitor for coolant lost


A coolant flush is require every 2 years or 24,000 miles.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.

Please post more information by clicking the comment link on the top right corner.

DON'T FORGET to RATE ME if my tip is helpful to you!

Posted on Dec 05, 2009

  • 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
  • 8 Answers

Check your thermostat to test it throw it in a pot heat it up if it opens its good if it didnt open get a new one.

Posted on Nov 20, 2009


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:

1 Answer

2009 VW Routan (Chrysler T & C), overheating... Noticed loud sound coming from A/C increasingly when knob turned higher, lower when lower... Shortly there after, started overheating; quickly when A/C on,...

dont kill your car because of low coolant and factory coolant miles away add water if its not too low. problem sounds like it is the a/c pump failing causing a heavier draw on the engine. I would suggest the water pump could be the problem accept for your mention of the noise while a/c is on. I would go as far as adding any coolant if it was dangerously low to get it do the dealership. they can always backflush the system.

Aug 19, 2013 | Cars & Trucks

1 Answer

Engine overheating ============ Went fine at higher speed but moment I dropped speed the temperature gauge started going up. There is a whirring sound in the engine (sounded like a tape stuck in the...

Don't know what the "whirring" is, but you NEED to find it. The only reason your temp. goes down at higher speed, is cuz more air is rushing past your car, cooling the engine and radiator. Careful you don't burn up the engine! Find the cause of the overheating, probably related to the sound you hear, or caused by overheating, even maybe causing the overheating. Take your time and work on it or have it serviced. Start by checking your coolant level. Good luck.

Oct 28, 2011 | Cars & Trucks

2 Answers

The trouble began by my van not shifting out of 2nd care... van had gone into limp mode. Shortly there after, the engine light came on and my van started to overheat. We ran the codes and got PO720,...

The codes you gave are:
P0720 = Output shaft speed sensor error P0731 = First gear incorrect ratio Replacing the Output shaft speed sensor should clear that up and help your transmission. Around $20 or so. The limp mode is probably caused by a faulty cam position sensor or crankshaft position sensor. Overheating: Did you verify that your cooling fan is coming on? Kicking into a higher speed with the A/C on? Thermostat of the correct heat range and installed with spring end into engine block? Coolant is not rusty looking or weak? (check specific gravity) Flush and refill system if not nice and green or orange/ is rusty looking. Water pump is circulating coolant properly? (open radiator and observe circulation, feel top hose for fluid surging) if not, bad pump. Any of those will cause overheating. Hope that helps! Please rate this answer.....Thanks, Mike

Jun 14, 2011 | 1996 Dodge Caravan

2 Answers

My 2005 trailblazer makes a small knocking noise when I accelerate. It doesnt do it when I accelerate slowly and when I am already at higher speeds

May be a rod knocking , as for not hearing when you are traviling at a higher speed it still more then likely is just you don't here it. . You might check the timming but more then likely your motor need overhaled, Just make sure you get a sec. opinion, with another shop. good luck to you.

Mar 28, 2011 | 2005 Chevrolet TrailBlazer

2 Answers

2005 focus overheating at speeds greater than 45 mph. Does not overheat at idle. Gauge goes back to normal immediately when speed is reduced. Radiator, thermostat, coolant reservoir and sensor have...


It sounds like there is air in the system, also worth noteing that thermostas can be faulty at any time even when new so might be worth rechecking that, I remoe it and then place the thermostat in a pan of boiling water if you see it open easily then at least you can rule this out. also is the water temp sensor clean, or the part where it sits into the engine is that clean?

Finally the only other thing is air in the system, did you have the system bled through after the new parts where fitted? and the only other thing I can think of is the fan is starting to fail, they can overcharge at higher revs or at higher speeds so then the fan cuts out or slows down thus not creating the correct amount of cool air. you can test this with a amp meter, worth checking all connections also from and to the battery and the fan itself. It is quite common on fords this fan issue.

ohh there is one more thing, there is a heater control module that sits dierctly behind the dash board in the centre, you can see this from the engine bay again in the centre has 2 pipes one in and one out, this is for the cabin heating that feeds to the heater matrix, these alwyas fail and can cause the heated water to stop at the cabin end and return to the engine thus cauing overheating, this is rare that it would do this but it is just another possibility for you.

Hope this helps.

Dan. p.s I would check the fan first!!!

Dec 27, 2010 | Ford Focus Cars & Trucks

1 Answer

Engine overheats at higher speeds

Hello comets78 and thank you for asking your question, on Fixya.

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 2002 Chevrolet Astro, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people like you. So here is the link to:
How to diagnose your overheating 2002 Chevrolet Astro

Anyways if that helps you any little bit, then feel free to follow me on Twitter. That one is at:

Thanks for the vote, and good luck!

May 30, 2010 | 2002 Chevrolet Astro

2 Answers

2004 overheating at highway speeds

Check rad cap & check your rad hoses for one that may feel soft & collapsing & restricting flow under higher speeds. Sometimes you can see it **** in when you rev engine in park. Especially lower hose.

Jun 26, 2009 | 2004 Dodge Ram

Not finding what you are looking for?
1993 Honda Accord Logo

164 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