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1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should


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Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 13, 2022, 3:15 AM

Post #26 of 42 (1129 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

There are definitely two switches. I know one of them is on the engine, not sure where the second one is



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flipstyle
User

Apr 13, 2022, 10:44 PM

Post #27 of 42 (1117 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Thank you. Think I'll have to try and dig up a diagram on google somehow. Or I'll just try and trace the wiring when I'm out there.


Hammer Time
Ultimate Carjunky / Moderator
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Apr 14, 2022, 3:30 AM

Post #28 of 42 (1111 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Here is the location of switch A which would be the suspect one.





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flipstyle
User

Apr 15, 2022, 6:01 AM

Post #29 of 42 (1091 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Thank you so much for that!!!!


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 15, 2022, 9:49 AM

Post #30 of 42 (1083 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

You’re welcome



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



flipstyle
User

May 4, 2022, 7:18 PM

Post #31 of 42 (778 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Well, finally got around to troubleshooting the coolant issue (had to raise my car up, I have a lowrider). And, after being able to get my head underneath the frame and pinpointing where it was coming from, I was finally able to trace the issue to a massive leak coming from the hose that connects to the block right underneath the distributor cap. That hose looks to be around 2 feet long and wraps behind the engine block and feeds into some sort of black box mechanism. I'm honestly not even sure what this is identified as or what component it's feeding into.

As soon as I fed the tiniest pressure into the radiator using a kit, coolant was gushing out of the hose spilling almost the entire contents directly onto the garage floor. No wonder I overheated out of nowhere that night.

I have taken a video for reference:

https://www.youtube.com/shorts/junc8jVjAWc

My question is, do you happen to have the part number for this hose? Again, this is a 1997 acura cl 3.0. The only thing I can see on it are the markings (you can kind of see it in the video)

YUSA-Y701 HO 09.

Doing a google search on this yields nothing. Is there an equivalent part number I can search for a universal hose to fit this application?


Thanks so much again for the help!


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 4, 2022, 7:24 PM

Post #32 of 42 (776 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

I have no idea what you are trying to show us. All I see is plug wires and AC hoses.



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flipstyle
User

May 4, 2022, 7:53 PM

Post #33 of 42 (772 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Apologies, was difficult to videotape that cramped area.

It's the hose that runs into the engine block and is located directly below the distributor cap. I don't even know what it's feeding into.

That same hose runs around the back of the engine block (horizontally across the top of the engine mount). I have circled the locations in red in the following link. Again, the hose reads YUSA-Y701 HO 09 ....but cannot find any info on google. Thanks!

https://imgur.com/a/qrwujzj


flipstyle
User

May 4, 2022, 9:06 PM

Post #34 of 42 (756 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Am thinking it's a throttle body (since it's located under both the distributor and TB) to valve 2 HVAC hose.

link deleted ...... not allowed

Not entirely sure, but seems like it.


(This post was edited by Hammer Time on May 5, 2022, 4:51 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
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May 4, 2022, 11:02 PM

Post #35 of 42 (733 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Flipstyle: I saw hose you post for sale.
If that's a match to a leak for sure their pics to your in person view + correct was listed/described as >Throttle body to HVAC valve is listed as a heater hose.
Appears plain molded hose should have clamps not crimped as A/C hose usually is.
1st. This has been a while, overheated now gauge doesn't read the same perhaps a wild leak? YOU SHOULDN"T BE DRIVING THIS or will make it worse!
Long thread hard to pluck out where you said that would be common air in this wouldn't purge out well or leave air at where it's sensing it gets WRONG info, fans would be screwed up.
You said they'd come on for a short while and shut off. Coolant shrinks fast at radiator air may move at switch then hot coolant or back and forth confusing a temp sensing switch.
Cooling system must be intact, full of coolant and hold pressure ALL those before it can behave.


If you can't get there all bets off on diagnosing other problems caused by overheating remain unknown. You'd have to fix that type hose (if leaking) before testing a thing would show more.
All that correct or no known cause. JUST an FYI physics of coolant/water alone/boiling points: All will raise boiling point ~3F per PSI of pressure. That will force coolant/liquid state to stay a liquid not a vapor - got that?
If not damage is next or with age now gaskets lost it then overheat opens the book on possible damage up to cracks in metal can't really know that without engine all apart diagnosis must be done you can't apply pressure while apart.


Steps in order like a checklist till you can know, then decide on the fix. We aren't there yet,


Tom


flipstyle
User

May 4, 2022, 11:46 PM

Post #36 of 42 (730 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  


In Reply To
Flipstyle: I saw hose you post for sale.
If that's a match to a leak for sure their pics to your in person view + correct was listed/described as >Throttle body to HVAC valve is listed as a heater hose.
Appears plain molded hose should have clamps not crimped as A/C hose usually is.
1st. This has been a while, overheated now gauge doesn't read the same perhaps a wild leak? YOU SHOULDN"T BE DRIVING THIS or will make it worse!
Long thread hard to pluck out where you said that would be common air in this wouldn't purge out well or leave air at where it's sensing it gets WRONG info, fans would be screwed up.
You said they'd come on for a short while and shut off. Coolant shrinks fast at radiator air may move at switch then hot coolant or back and forth confusing a temp sensing switch.
Cooling system must be intact, full of coolant and hold pressure ALL those before it can behave.


If you can't get there all bets off on diagnosing other problems caused by overheating remain unknown. You'd have to fix that type hose (if leaking) before testing a thing would show more.
All that correct or no known cause. JUST an FYI physics of coolant/water alone/boiling points: All will raise boiling point ~3F per PSI of pressure. That will force coolant/liquid state to stay a liquid not a vapor - got that?
If not damage is next or with age now gaskets lost it then overheat opens the book on possible damage up to cracks in metal can't really know that without engine all apart diagnosis must be done you can't apply pressure while apart.


Steps in order like a checklist till you can know, then decide on the fix. We aren't there yet,


Tom


Thank you much, Tom. Your info and help is greatly appreciated.

No worries, I have not driven this car in weeks since discovering the leak. But today I finally found out where it came from. Obviously the engine block may still be compromised, but I'd like to tackle replacing this hose and fixing the leak first to see exactly where the car stands and to see what else I'm dealing with.

I have to examine the hose again one last time before ordering. It's definitely a hose that carries coolant, as that's what was spilling out of it when I filmed it trickling down to my garage floor.

The hose has a lot of bends and kinks in it and appears to be pre-molded. There are indeed clamps on both ends. Just have to make absolutely sure I order the right part number.

Link deleted


Because according to this diagram, hose #2 could also be it. It feeds into a small black box module on the bottom of the engine bay.

Just wish I could find a really good diagram of the coolant hose that runs underneath the distributor. Haven't found any on google, so this is sort of guesswork.

Will tackle the fan issue after I get this taken care of. It could very well be that the fans are the result of the hose leak and lack of pressure in the system, as the ECT may not be getting proper readings because of all this.

Thanks


(This post was edited by Hammer Time on May 5, 2022, 4:52 AM)


flipstyle
User

May 5, 2022, 1:07 AM

Post #37 of 42 (721 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

What a relief. I'm a goof. I didn't do a good enough job tracing the hose in question. I made a mark on it with a yellow marker this time and traced it just to make sure it was the right one. Turns out, the hose feeds directly into the heater core outlet against the firewall.



red circled in the diagram.

Should be a lot easier to replace. The other one I mistakenly identified is apparently the other hose right next to it, and the black module I was referring to was the heater valve. I took a look at it a few minutes ago and saw the actuator pin on the valve so I've correctly identified it. I think I may replace this hose, too if I can find a replacement since I saw a trace of some liquid at the junction where the hose plugs in. It may be splattered remnants of the other hose leak, but rather just replace both just to make sure.

Wish I had part numbers, but I think I got it from here, thanks all!


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 5, 2022, 1:25 AM

Post #38 of 42 (714 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

OK:
If that's in need for leaking don't keep driving it. Already mentioned reasons.

If that is difficult perhaps take that one off as carefully as you can so you can measure it's I.D. inside diameter could be different at other end.

Ha - if room you can make standard hose to curves - DOUBT that's too hard to find new. They can be somewhat universal aftermarket cut shorter trick just so inventory/parts in general don't overwhelm places about now.

More BS about importance of this. I probably is part of coolant by-pass idea which is to mix coolant inside engine's water jackets evenly while warming up then keep it uniform - is critical, there is one water pump and distance from that to whole engine matters.

Even more with dissimilar metals a challenge to not blow gaskets and warp heads.

So you can find that I'm sure helps if you can match the thing with size/dimensions listed wherever you find it.

If on line ask the seller if not included in the thing,

Tom



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 5, 2022, 4:53 AM

Post #39 of 42 (702 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Please stop posting links to other sites. They are not allowed in this forum.

http://autoforums.carjunky.com/...ORE_POSTING_P122809/



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



flipstyle
User

May 26, 2022, 6:16 PM

Post #40 of 42 (450 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Just wanted to revive this thread with one quick question for anyone that has access to the information: found some oil in the distributor cap while trying to diagnose an external leak (already replaced the outside o-ring).

Does anyone have a part number for the distributor shaft seal grommet? The thing that's located under the distributor rotor and prevents oil from coming into the distributor cap.

My local dealership doesn't carry it and it seems this part is damned near impossible to source in the secondary market, considering it's for the v6 model and not the inline 4.


Vehicle: 1997 acura v6 3.0

I debated going the aftermarket route and replacing the entire distributor assembly, but after reading horror stories about how most are manufactured in China and are hit or miss, I'd rather just rebuild my OEM one.

Thanks!


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 26, 2022, 6:23 PM

Post #41 of 42 (447 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

You're going to open a can of worms if you try to disassemble that distributor. A whole distributor is the only way to go.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



flipstyle
User

May 26, 2022, 9:07 PM

Post #42 of 42 (438 views)
  post locked   Re: 1997 Acura CL 3.0 : AC / Radiator fans not functioning as they should  

Understood.

I've watched quite a few videos so I'm up for the nightmare.

It's just beyond difficult to find the correct grommet, but I think I may have sourced it. Thanks for the words.






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