Honda Accord Overheating - Troubleshooting

[@BigDog50001]

*Parts and Tools* Disclosure: This channel earns a small commission using some of these links - at no additional cost to you. OTC 3636 Test Light: amzn.to/3vaDbiv Relay Pliers: amzn.to/3PvHc9A Astro Light (newer version): amzn.to/3z1U8Na FLIR TG275 Thermal Camera: amzn.to/3yWitEd The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog50001automotive (As an Amazon Associate I earn from qualifying purchases).

[@MrTito714]

Dose that go for the same for Honda Civic 1999 both fans should turn on and off at the same time I’m having a overheating problem

[@lesjohnson3716]

Y

[@alexandercahoulan6583]

I Love how Bigdog explains wiring diagrams. It clicks for me. My favorite/go-to Honda guy. For sure

[@BigDog50001]

Thanks for the comment 👍!

[@themechanic6117]

Nice diag. Don't forget the owner can run the heat inside the cabin to try to alleviate over heating due to a fan not working.

[@kcstonemenott]

What if they tried that to no avail bc even on full heat, full blast... The air is simply coming out cold? Not a stitch of heat? 🤔 Cuz that's the boat (Honda 😆) that I'm in right now

[@themechanic6117]

@kcstonemenaut3707 there may be a not enough coolant in the system. Check if the coolant is low. If it is you'll need to find how why it's low and fix that leak

[@Staystonedjp]

Thank you so much for this video ! My husband and I were trying to figure it out. The tapping method is definitely the car saver. I changed the fuse, the coolant, everything and now my stress is gone. You deserve an award 😇 thank you sm.

[@AlvinMedina-Torres]

I’m stressing rn tryna figure out y my wholes keep coming out n i fix thermostat n still actn up 😢😂

[@brianturner914]

Absolutely incredible. I went along step by step exactly how you did it with my 2007. I did that tap test and it came on. I suppose I’ll be installing a new fan. Thanks very much

[@richardfabrizio8998]

Nice investigative diagnosis. I’d love to see the repair. Hopefully you can treat us to that. Good job. Thanks

[@BigDog50001]

I'll see what I can do, thanks for the comment!

[@Harold_Callahan]

When you broke out the wiring diagram my eyes rolled back and I thought, Oh great this is where I zone out and get lost. But no, you made it very understandable. Great video!

[@dukert27]

Had this same issue with my 2006 Acura tl. Gave the fan an little tap tap taroo and it works. Replaced it. Great video.

[@juantoomany4616]

Very nicely done video! The time you take to explain everything is very clear and concise! I have a mechanical background but always struggle with electrical testing and diagnosis! Thank you for an excellent video.

[@donmedina2998]

Followed your video to the tee and determined the same issue of "bad fan". Thank you so much for putting this video together and sharing it here on KZbin.

[@TheLbeeler]

Great job on being specific to what could go wrong. Always good to see someone be as meticulous in their work, it shows you care about what you do! Both my fans work with the AC on. However if I drive around the block with the windows down and the air conditioning off, I never see, or hear the radiator fan go on. Although the temp gauge inside never seems to get past the normal mark. Could it be that the sending unit (which is brand new) never gets hot enough to trigger the ground to engage the fan? Thanks again for the video!

[@Mac27058]

Even, I have the same question. As per Honda, both the fans should come on irrespective of whether the AC is ON or OFF.

[@ВячеславКоротнев]

He explained it very clearly. Well done. It was nice to watch.

[@Glenn_123]

You absolutely do the best diagnostic videos I have seen! Keep up with the great work!

[@BigDog50001]

I appreciate the comment, thank you!

[@vincentng5429]

The best diagnostic videos I have seen. My son have the same car. Thank you

[@chrislastnamevoid3027]

It’s nice to finally have a good detailed video. Amazing instructions. Please keep making videos

[@headsup5819]

As for an instructional/ do it your self video, this one is excellent! It leaves no questions unanswered.

[@patrickthomas6170]

Thank u for detailing us on the wire harness connector mechanism: I broke the other fan harness holder changing alternator : baby zip tie works fine but is a constant reminder

[@BigDog50001]

👍

[@alexrobles4343]

Very informative and easy to understand. You diagnosed it professionally step by step and cautiously. Cant thank you enough for this video because my brother called me with the same issue vehicle year and model and here I am. 👍🏽

[@reid1boys]

Thank you very much for the time you took on this. Obviously, you would have done the old tap test first thing but you did all that diagnostics for our benefit. Nice video as my daughters 04 accord overheated yesterday, so off I am to deal with it.

[@BigDog50001]

Be sure to subscribe for more tool and car repair videos! kzbin.info Buy Big Dog50001 T-Shirts, coffee mugs and other gear here! bigdog50001automotive.myspreadshop.com Want a free Big Dog50001 sticker? Send an email to [e-mail] requesting a sticker. Sorry, no international addresses or automotive questions. twitter.com/BigDog50001 instagram.com/bigdog50001/ The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog50001automotive (As an Amazon Associate I earn from qualifying purchases).

[@sandystorm4429]

Love your videos and your amazing diagnosis steps at work. I learned a lot from your knowledge and great videos. Yes, please do a video of the fan replacement repair. I appreciate you so much!

[@BigDog50001]

Thanks for the comment 👍!

[@eddiemanuel3946]

Awesome 👍 nice work this video has me more focused on my 2003 Honda Accord and your videos are helping me figure out diagnostics thank you for your help.

[@BigDog50001]

👍

[@TheMaroney]

Awesome video man. My cooling fan had a bad wire to the grounding harness Fixed the ground wire and WORKS PERFECT.

[@skyisthelimit9951]

Although I am new to the party, I loved the explanation is fantastic and easy to understand. My 2007 Accord radiator fan is not working so need to diagnose it as per your advice. Thanks

[@Europe-fi1zn]

Today i have the same problem to the same car 2007 Honda xls , I was driving and the steam started coming from the engine after all 😢 I opened the engine Than I tested the fan as your show in this video but not think happened !!! I tried a swing between the fuses! but my diagram fuses boxe shows both of them in green of the a/conditional and the engine in 20 amperage ,??? the engine fan not working and the a/c works ! in the same time the radiator is empty of liquid ,!!!😢😢😢😊😊😊tomorrow I will finish the work than from there hopefully it will resolve the problem !! Tank you for your show is really helpful !! I appreciate this Sir !

[@Jeff-rk8hq]

This was a very thorough video and although I am inclined to believe I’m gonna be replacing a water pump because the leak was massive right below and slightly behind the pump, I verified the fuses and relays were good in my gen 6 Honda accord but the vid was good so I watched to the end and I am leaving with what feels like a good series of steps to follow, if ever confronted with the situation again

[@paulgregory5148]

Nice guide on the diagnosis. I had already checked the fuses but did the tap test before messing with the relays. Bingo! Problem found. Thanks.

[@jacjmc]

That tap test a game changer 😎 thanks for the vid learned a lot

[@wdhewson]

Thanks BigDog. My 2003 4Cyl Accord Coupe threw a brake light on the dash. Parking brake and/or brake fluid level problem. Unplugged the master cylinder level switch and the light goes out. I'll look for a video where you have addressed this.

[@tedysimbulan5497]

thank you sir fan from the philippines. your the best when it comes to explaining things in my country we always do the fan tap first thank you sir

[@hinick6775]

i wish i could give you more likes this is amazing work to say the least in detailed instructions 🙏🏼

[@rvasic]

Very informative and entertaining video. I liked whole process of elimination. I'm pretty sure fan replacement video is ready already, let's see it please 😃.

[@BigDog50001]

👍

[@TheDisgruntledMechanic]

And I was there for your 1st video! Great diag as always Dave. Stay cool!

[@BigDog50001]

And I appreciate the support Mike, thank you!!!

[@arthurfricchione8119]

Dave all your videos are a thumbs up.thanks for sharing your troubleshooting process. Is it hot out by you? It’s been very hot and humid up here in NY. You and family stay safe and well. Artie 🇺🇸👍

[@BigDog50001]

Should be 109 degrees today with some humidity too, not too fun to be outside! Thanks for the comment!

[@cwl206]

Wow you did such a thorough job explaining everything. My condenser fan isnt spinning so now to do the checks you recommended. I am suspecting I need a new condenser fan. 2000 accord 3.0 coupe. Liked and subbed!!!

[@leebang3028]

Tap test still works for me till this day 😂👍🏽

[@keepcalmandfarmon5401]

Great explanation of the diagnosis logic!!!

[@BigDog50001]

Thanks for the comment!

[@rosvl9er396]

Easy install. Thanks for the videos. Exact problem I had. Excellent job on the videos and explanations of the problem

[@nicselectronics81]

Thanks, just had the thermostat replaced and still had intermittent overheating....guess I need a new fan 👍

[@Clarity5970]

Great video no one tells you about other fuse box in the car only one under the hood.

[@johnsmothermon6856]

No oil leaks on an 04 K MOTOR!!! very well maintained.

[@bronniesboy]

Hi are there other issues why coolant fan does do not work. Both my fans work with ac on but even in the summer I never have them or even the coolant fan ever come on. Never had over heating though.

[@KantusKid]

Excellent diagnosis and explanation. Learned a lot! Thanks.

[@doejohn4416]

Bro this video was so informative and helpful thanks so much!!! This is why I call KZbin my real dad 👍

[@JoseGonzalez-vj2qe]

Excellent explanation, nice diagnosis, I love your details, I started following you. Very professionalism

[@VenganzaCayey]

You have a new subscriber man thanks keep up these videos on the accords

[@NGH99999]

Great video. Let's see that fan replacement!

[@BigDog50001]

I'll see what I can do, thanks for the comment!

[@serenamoore1358]

Thank you, this video has been very helpful!

[@JuanGarcia-kk3ux]

Great diagnostic and a great advice and yes absolutly like to see the replasman to lorn more

[@joshuam.6404]

This was a great explanation, especially in how to understand wiring diagrams. Where can we find those to download for our cars? (And yes let’s now see a fan install video 😁)

[@BigDog50001]

Unfortunately you have to pay to get access to wiring diagrams (and service information). I use a couple different services and I pay a lot of money each year to have access to them. Thank you for the comment!

[@joshuam.6404]

@@BigDog50001 ah ok. Back in the day through the forums we had a link with a login to super accurate parts diagrams, I still remember the password but have long forgotten the site address. It was great for figuring out part numbers though! Anyway tough luck that the wiring diagrams are close hold; I always have my Helms manual but it would be nice to have computer reference. Well thanks for the continued super helpful vids!

[@alinstancu5104]

Nice job. Very thorough in diagnosing the problem. Are you working on Part 8 of the Accord project?

[@BigDog50001]

Yes, I am finalizing the Accord Project videos. Lots of footage to edit which takes a long time but they should be out soon. Thanks for the comment!

[@YomHus]

Super job man.

[@BigDog50001]

Thanks!

[@AllPraiseToYah]

Superb diagnostic explanation. A one quality.

[@moraesronaldo98]

Nice job, well explained with lots of details. Tks for the video.

[@ConsolingYourMind]

Nice very informative and very detailed! I noticed you didn’t check the fan switch thats at the bottom. could it be that as well? I have seen some other videos. It was the fan switch. Thanks in advance. Great channel by the way.

[@Noizy_Boi]

Didn't even realize my radiator fan was bad. Thanks for this! Got my like and subscribe! Could this cause my A/C to suddenly stop working as well? Was working fine throughout the day and sometime midday, I noticed something odd and that was the A/C wasn't cold anymore! A/C fan still works like in your video.

[@rickir808]

Nice job breaking down the troubleshooting! Good info for DIYers. 😎

[@BigDog50001]

👍

[@qwer.ty.]

Do you know by any chance if the wiring diagram is the same for a 2008 Honda Odyssey (3.5 VTEC)? Pretty awesome video, thanks for also explaining the methodology! In the end have you changed the whole fan or just the tap tap was enough?

[@jasonwestlund7714]

Awesome video...never once fast forwarded!

[@BigDog50001]

Thanks for the comment 👍!

[@goodseller7737]

amazing diagnostic video👍👍👍

[@MrBluoct]

Any non Honda clutch assemblies you have or do consider ? 180,000 original clutch 2007

[@JP5466]

Great video and diagnostics!

[@livelyclive9751]

Keep up the good work bro

[@fatdeebs]

When showing the coolant at first maybe add the whole atmospheric pressure speech I almost took it off but kept watching 😂😂 3 mins later u bring up it could’ve burned my pretty face off 😂😂

[@ricardoprovan5159]

Great tuition video! I need some of these tools!

[@jayp1mp1n]

My 04 Accord isn’t overheating. But coolant keeps leaking from the reservoir cap. I have replaced the cap from the dealer. There is no seal required for the cap. Any suggestions? Appreciate your very detailed videos!

[@nimster64]

I would like to see a video on the fix thank you. Great information

[@AllPraiseToYah]

I follow everything you have shared. My problem is the radiator fan does not come on when the temp threshold is reach. I have to turn on the a/c to get the radiator fan to turn on. This leads me to change the temp sensor at the engine block. I did that. It did not correct the problem. What im i missing?

[@Thomasploeg1968]

What's the chances? Have same problem on my 2010 honda civic today and I get a notification of a new video with same problem. Love your videos

[@BigDog50001]

👍

[@1box4jm]

The tap tap gave it up. Nice.

[@BigDog50001]

👍

[@bravom9]

Thank you so much for this very detailed explanation.

[@Larry-bwtmd]

Great video, clear and concise with great presentation. Gearhead 45.

[@jimmyblair7597]

Good video, I work on lots of old Honda's! Good job....

[@stevewhitt9109]

When the ole tap test works, as you are recording: means that the Car "god" smiled upon you :)

[@jonathanmoflori4915]

Very informative video , much thanks 🙏

[@tonygSDWR]

Thank you. Very helpful.

[@CptBulldog]

Having a different issue. Had my heater control valve crack and leak out coolant. Replaced the valve, now the fans don't come on at idle. Not sure if I have still have air in the coolant system or if the cooling fan switch is bad.

[@laviebanale]

Nice video. I learned a lot.

[@bigdap100]

Fantastic video✅✅ Question, if your coolant is low can you add water for emergency

[@Mr.MatthewWilson1776]

Hey there I have an 87 Honda Accord LXI sedan automatic that started overheating while idling. Wasn't in traffic or anything just had the car turned on. No coolant leak or anything. Do you think it might be the thermostat?

[@peteacevedo3822]

Another amazing video! Thank you so much!

[@joelescober]

The tap test loosens stuck brushes in the fan. loose carbon gets in between the brush & it's holder & restricts free movement of the brush thus contact between the commutator & brush is compromised. You can just clean the brush holders, replace the brush & spring & you're good to go. No need to buy a new fan. . I replaced three fan motors before I realized you can repalce the brushes yourself.

[@YoungShizzie]

Mine does the same thing but it doesn’t over heat but the engine and radiator gets red hot some days fast and the one fan doesn’t come on until a few mins later which is normal I guess but my heater valve is bad I switching it soon and I was losing coolant so idk my heat didn’t work either I had to hit the thing to make it switch from ac to heat

[@mikefixac]

Excellent video. Boy did I learn a lot. Would the fickleness of the motor be caused because it's a shaded pole motor?

[@q.marshall3611]

That helped big time thank you

[@juliecoble2597]

Need the video on replacing the radiator fan

[@theebenReyes]

Have you changed the knock sensor on this car.

[@s0nic2nr]

Hey Bud Dog, I have a 05 Honda element and having issues with my transmission. Pull code, it's telling me a solenoid issue. I have replaced all solenoid and still have the same issue. What test can I perform to see if the solenoid are getting any voltage?

[@YoungShizzie]

So my fans do the same thing but one of them don’t come on until I guess it warms up and gets to a certain temperature? Is that normal or ? Should I change the fan i need to upload a video

[@carlosmoreno2387]

Thanks man you’re awesome 👏

[@LewisC-t1f]

My 2005 Honda accord commuter also overheats when i idle for more than an hour during summer days. I add coolant and it spills out when it starts over heating. I’m taking it to my mechanic tomorrow. But the coolant drains within a week, sometimes 1-2 days.

[@supergenius12345]

Masterfully done, thanks for sharing

[@moncadamendez2456]

Very educational video

[@justine.n.v2676]

I have a 2005 accord that overheats after driving it for a bit every time both the radiator and the ac fan work when I checked and it has coolant what do you think is the problem?

[@justine.n.v2676]

It might be bc I don’t have coolant in the actual radiator I’m gonna put some and see if it works

[@OneLegged-honda-mechanic]

Very thorough! 👍

[@BigDog50001]

Thanks! 👍

[@franklinunknown1846]

My sister in law has a Honda civic Lx (2002) 1.7 and the car keeps overheating after about an hour. We replaced the radiator, hoses, and the thermostat and still have the issue. Any possible solutions you could think of? Thanks.

[@eternallogic6394]

My engine temperature gauge keeps moving back and forth from H back to the middle. What could this be?

[@treyonnaboone217]

I have a 2006 Honda accord my big fan stopped so what kind of part do I need to order?

[@HM-fn2xe]

Thanks for the informative video. 👍

[@TwoRoadsDiverged1]

Really great explanation. Thank you, sir.

[@BigDog50001]

Thanks!