Author Topic: High Miler  (Read 227322 times)

mr.mindless

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Re: High Miler
« Reply #885 on: June 24, 2025, 08:18:27 PM »
Confidence increasing. Probably wishful thinking.

Ac charged. Fan definitely not fanning much. Old problems reconfirmed.

I could probably put an electric puller between the intercooler and radiator triggered off ac clutch or ac switch as a reasonable price bandaid. There’s at least 2” between intercooler and radiator.

I threw a fan clutch at it years ago with no change iirc. I should search the thread to confirm.
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M4wdFab

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Re: High Miler
« Reply #886 on: June 24, 2025, 08:36:07 PM »
joe put in a ford fan clutch or something to fix his?

mr.mindless

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Re: High Miler
« Reply #887 on: June 25, 2025, 09:31:29 AM »
I don't know if he executed on that. talked to him about it once, don't recall. his truck would run a bit warm, mine never ever does.

I think it's an adaptor to run a 7.3 powerstroke clutch, and it was like $700 all-in.
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Harrison

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Re: High Miler
« Reply #888 on: June 25, 2025, 10:05:55 AM »
Joe did the mechanical fan conversion and I just did it on mine after having no fan and code for years. His would hit 230 on hills, mine never used to go over 210 but was creeping up on me in traffic with ac on the other day so I decided to do it. It now has more ac at idle than it did before but still not great. Wheeling three weekends in a row so we'll see...

AC system probably needs a real vacuum/charge and some parts thrown at it for better performance in general. I have considered a big pusher fan on the condenser powered through a relay triggered on by ac clutch signal.

Harrison

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etk300ex

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Re: High Miler
« Reply #890 on: June 25, 2025, 11:03:15 AM »
Good news


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mr.mindless

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Re: High Miler
« Reply #891 on: June 25, 2025, 06:14:20 PM »
99% sure I have the 6 bolt fan already.

I don't not have AC in traffic or at idle, I overpressure and spew freon. it does nothing if I'm not moving.

even so, engine temps are rock solid. I might be missing a baffle among the cooler stack that makes AC and intercooler worse and radiator better, I can reach right in between 'em.
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mr.mindless

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Re: High Miler
« Reply #892 on: June 26, 2025, 09:26:52 AM »
couple hours of run time and half a dozen key cycles. I swear it's running better but I'm sure I'm completely imagining that. just like 2% smoother and steadier or something.

I did buy parts for the fan swap. Will be here next week, not sure if in time to bother before F&F assuming all goes well. More important to me to swap the LF wheel speed sensor and get cruise back if I've gotta pick between the 2
« Last Edit: June 26, 2025, 09:28:36 AM by mr.mindless »
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mr.mindless

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Re: High Miler
« Reply #893 on: June 28, 2025, 06:18:12 PM »
LF wheel speed sensor changed
Cruise good

467,585

Would be a 20m job without the dually adaptor.
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M4wdFab

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Re: High Miler
« Reply #894 on: June 28, 2025, 09:51:28 PM »
nice.  good work. 

mr.mindless

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Re: High Miler
« Reply #895 on: June 28, 2025, 10:14:50 PM »
AC isn't working for shit. I suspect something else is wrong, maybe in the heater core blend door area. I see it's making condensate but it's not blowing cold air. I haven't twaggled the heat knob while attempting to cool, but it does act right without AC on a cool morning.

Pressures are not perfect, the oriface tube is definitely slightly plugged. Low on the low side and I charged it to top of range on the high side. it blew cool air after a water spray on the condenser but driving around at highway speed isn't cutting it at all. spinning the motor to redline helps it a smidge but it doesn't stay cool there so compressor RPM isn't all there is to it. not sure what's up there. New issue.

I doubt the new fan will help that.

Hopefully wrap up the camper tomorrow or damn close to it.
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Harrison

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mr.mindless

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Re: High Miler
« Reply #897 on: June 30, 2025, 11:15:11 AM »
It's 100% not adding heat to the mix. might have to run down the road with manifold pressure gauges on it, see if maybe it's intermittently cutting the compressor and/or plugging up entirely somehow. that's what it seems like.
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mr.mindless

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Re: High Miler
« Reply #898 on: July 04, 2025, 07:50:14 PM »
Ford mechanical fan clutch installed

Tidied up Edge CTS EAS wiring that dates back to initial purchase, and installed second pressure sensor that I bought when the dash cluster oils pressure gauge got flakey a year ago.

Updated Edge CTS software as well, gained a new layout that shows 10 parameters plus pitch and yaw - with Jeep icons. How special.

But I can now have all the things showing that I want to see. All alerts set up and working for low pressures and high temps.

Had AC at idle, but it was 73 and in the shade. Hopeful though.

Shifter boot is the only other maintenance item I want to check out, along with checking trans fluid level. Up to 12 hours or more of engine run time with no hiccups. I’m going to say out loud that I think it’s fixed. Hopefully that’ll be a jinx if it’s not fixed.
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mr.mindless

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Re: High Miler
« Reply #899 on: July 06, 2025, 03:46:06 PM »
Ac better but still iffy.

Pressures now good. Low side not getting that cold under the hood. I overcharged, no improvement. Let it back down, no improvement.

It’ll keep it tolerable in the cab in Mac ac on a day like today but it’s probably blowing 60 or 70F air.

Might have to talk to an expert about it and see if they think throwing a fresh orifice and drier at it is a logical next step? Seems like not with pressures right in spec at 55/275 at 90-95 ambient, but I don’t know what else might be it. Full evac and maybe it has too much oil? It shouldn’t, but it has had all parts except for the condenser in the heater box changed 2 & 3 times over the last 15 years.
Quote from: etk300ex
oh lord!