Ford 6.0L Power Stroke Diesel :: Cooling Fan Turning Too Slow / Doesn't Speed Up When AC Is Turned On
Jun 20, 2016
6L w/automatic trans,no tunes,no mods. Fan doesn't speed up when ac is turned on. I checked connector at fan shroud and #25 10a fuse and wanted to see if there's anything else I can do or check before taking it to dealer. I haven't towed heavy since I noticed ac not cooling at idle but last time I did tow the fan ramped up on hills and stop and go. I'm in Texas so I must get this right asap. I heard of some with manual override so I would like to do that as well but also heard rumors the override can damage pcm. Any manual override?
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Saturday while moving some items for the inlaws my truck, while moving at slow speed, reduced power to the point where it almost stalled, anti lock brakes were growling, right rear tire was dragging the brakes skidding the tire. maybe ten seconds then ran normal. got to stop sign and made a right turn and at about 30 mph started doing the same on and off for maybe 30 seconds. All the time Advance Track light blinking 3 times then pause, and repeating.
Stopped in a parking lot for a couple mins, did not shut off but drove the rest of the way home normally. At home we could smell brakes cooking, right rear brake disk was very hot. Drove to dealer Sunday morn with Advance Track over-ridden and ran normal. What would happen at highway speeds or towing my fiver? Bet they cant reproduce the prob, left no code etc. You know what that means.... I will update later.
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Immediately after putting new tires on my '02 Taurus SES, steering is really hard at the pullout, or turning at slow speed just after startup. After several seconds, steering is back to normal. I did have the steering pump flushed out with new fluid several months ago, and fluid is up to level now.
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Under normal driving, my cooling fan rarely comes on. The truck runs ECT 194 to 200 and EOT about 7-8 degrees warmer. On grades in the mountains, not towing, it will cycle on if the ECT gets to 210, cools it down and cycles again if needed. My question is, under similar conditions, what does your truck do? When towing my 5th wheel, about 13k, when its 90 degrees plus, at between 60 and 65mph on level ground, my ECT runs 210 and the fan comes on to around 1400rpm and cools it back down to about 204.
When the ECT gets back to 210, the fan does the same. On uphill grades, I see as much as 220 ECT. When this happens the fan comes on at around 2500rpm and cools it down to about 199 pretty quickly. I have a new oil cooler so my oil always follows and on my last trip I never saw more than EOT of 225 on the longest, steepest grade. The reason I ask is to see if this seems normal. My mech keeps mentioning that if my fan is cycling it may be head gaskets. But, I don't have any other head gasket symptoms. I think it seems pretty normal. If the fan doesn't come on and cool the engine when its working this hard, then what is it for? What does your truck do under similar conditions?
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The 2011 Platinum's "black" interior is really chocolate in color. This just killed a potential sale today. But I did drive it and it didn't dissapoint. Probably out of my price range,but if money wasn't and object, probably would go for the loaded blk. 4x4 Platinum.
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getting ready to do a cooling system flush per the instructions Cheezit posted a while back, which say "refer to Cooling System Draining, Filling and Bleeding in this section." I think I can figure out the drain and fill but how do you bleed the system?
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I have a 2003 6.0 Exc. I have installed an external "Bullet Proof" oil cooler, and essentially all of the "bullet proofing" accessories with the exception of head studs. I also have installed a Mishimoto oil cooler, as the OEM cooler had a crack in the upper tank, My particular problem is that the cooling fan does not kick on (audibly) until about 230 deg or so. It quickly cools to about 215, and the fan kicks off (audibly). On the long uphills here in AZ, it will repeat this process, sometimes getting as high as 240deg.
(As monitored by my EDGE tuner) I have utilized the blue-wire-to-ground trick noted elsewhere, manually turning the fan on myself, and that works great. What I'm asking, is what sensor sends coolant temp to the ECU, ( and where is it located in the cooling system) which in turn determines how much to turn the cooling fan on? What typical level the sensor sends to the ECU to control the fan? I would like to put together a circuit that "fools" the ECU into turning the fan full "on" at about 210 deg, and stays on until the coolant temp reaches 195 or so. I would like to check that sensor first, and make sure it is working correctly before I try to band aid a fix.
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My truck was parked at home and hadn't been started for 10 days. When I did start it for the first time, I heard the cooling fan spooling up or down, consistent with the engine rpm. After pulling away from my home I saw the fan speed spool up to near 2,800 rpm during the short period it was locked-in with the engine speed.
While driving out of my neighborhood, and about 1/3 of a mile from my house, the fan returned to normal speed of about 480 rpm. I have the FSS pid displayed on my Scangauge and was able to see the fan speed while hearing it. Now I know what the fan sounds like at a high rpm. It makes quite a roar.
This has never happened before. I've driven the truck a few times since then and it hasn't occurred again. What may have caused this?
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2006 F350 6.0 throwing code P0480 and I'm having a hard time figuring anything out pertaining to my truck. Trying to figure out what exactly it is and how to fix it myself.
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I currently have a 2003 F-250 6.0 with 112,000 miles on it. While traveling interstate speeds (70+) and the I can hear the cooling fan rev up and down every 10-15 seconds. Is this normal?
Also when it spins up, it sounds normal then make a high pitched squealing noise. Thoughts?
I am also needing to rebuild the fuel bowl. I noticed DieselOrings offers rebuilds for the 7.3 but not the 6.0. Will these fit or any suggestions on parts?
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My engine cooling fan came on when I first started the truck, was reading of 2k on torque app, ECT was appx 100* with the EOT a little cooler after about 5-10 minutes things went to normal around 600 rpm. It did not happen anymore during the drive, I was seeing about 192* ECT and 198-200 EOT. I let her set for 2 days and took her to town and the fan was at normal RPM's, Is there any problems or is that normal?
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I noticed my A/C hasn't been up to par. It's not bad when driving but just ok when idling. So today I changed the orfice tube and the accumulator. Vacuumed the sys. down and charged it up, 2 lbs 10 oz. It is worse! the compressor kicks on and off constantly only cooling to 80 degrees.
I noticed the high goes right up to 350 then the compressor shuts off .... 7 seconds later, back on and up to 350lbs and off again. I think the high-pressure switch is shutting the compressor off before anything goes kaboom but why isn't my fan cooling the condenser down? my FSS shows no increase in fan speed. Sitting at 450.
I think I'm going to cool the condenser down with a hose now to see if that works. If so, That would be telling me the fan isn't doing it's job correct?
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Noticed this past month on colder days my upper hose is collapsed, typically a symptom of a bad radiator pressure cap.
This hose is connected from the water pump to the radiator. The radiator is connected to the Degas bottle which has a nonstandard radiator cap.
Do these plastic caps vent the same way a typical cap does?
Cap for 2011 Ford F-350 Super Duty|9C3Z-8101-B
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Here is the issue i am having. 2011 F-350 King ranch with all bells and whistles. In Arizona now we are in the season that the weather is cold in the AM and sometimes hot enough in the late afternoon to need the A/C in the truck. with the settings on Auto which i normally do, and the external temp reading in the 80s, and the internal thermostat set at 70 or lower, the A/C compressor will not engage and allow for cooling the cab of the truck. But sometimes it will work just fine. I am assuming there is a temp sensor for cabin temperature. Where that is located. or will i have to change out the entire Climate Control Module. I would take it in to have it checked out but it is an intermittent problem, and i cant not have my truck for a couple of days while they try and figure it out.
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Turns out I've lost nearly all of the coolant from my secondary cooling system and am trying to diagnose the problem.
Things I noticed:
-All of the hoses appear to be in good condition.
-Coolant is dripping from the center of the engine bay.
-After inspecting the turbo area, it appears the valley below the turbo is wet.
The intake manifold is still on the truck, so I haven't been able to get a better look. Is there anything else near the area I am describing that has coolant? My guess is the turbo water inlet?
Perhaps this : Coolant leak on the 6.7 Powerstroke diesel - YouTube...
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Situation is I have 2016 F350 that when cold, seems to have shift problems between 5th and 6th gear, where the engine revs between the gear shift under light acceleration. Once warmed up, doesn't seem to do it, 4th to 5th might be a little slow or maybe just my imagination.
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I have a 2007 6.0 that this has happened to twice now. It's fine around town but I never hear the can come on. Friday when on the interstate my my temp gauge started to rise past normal operating temperature before fan came on. Is this normal? After the fan came on it stayed at normal temp for the rest of trip....
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I had this truck for two months no problems yesterday went on a small trip about 50 miles in on ,the hwy. I start seeing some smoke and then no power turned off & on engine several times a little hard starting no power at all I put the pedal to the floor It barely moves ran into another super d. guy he said fuel filters , I turned around and crawled back home and changed fuel filters still no power. no codes "don't no where to start".
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Been barely driving my super duty due to it having a multitude of issues. So working on getting this thing back to some semblance of running decently and it has been smoking whitish blue, oil smoke out the exhaust. Not constantly, intermittently as far as I can tell.
If I drive it at highway speeds for 5-10 minutes then slow down it will smoke for about 10-15 seconds pretty heavily. Yesterday I got off the beltway after running for 15 minutes, it didn't seem to be smoking, but about 1 mile to 1 and half miles later, pulled into a convenience store and it was like I was spraying for mosquitoes for about 20 seconds then cleared up.
Truck seems to be running strong. Turbo doesn't seem to have any play side to side or in and out(according to Baltimore Performance Diesel who I don't necessarily trust at all [ I will explain my reasoning on that some other time, but let's just say, one of the reasons involves a rear main seal diagnosis... I digress] but I assume they are correct on that, I haven't looked myself. So what are some other possible answers, rings I would think would be fairly constant but I could be wrong there.
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My 6.0 has been leaking oil for a couple weeks now, possibly longer judging by the staining underneath. Very slow leak. 1 drop hits the ground when I get off work and go to get in the next morning. It never really reads off the dipstick a drop in the level. I had to top up the oil yesterday but that is from about a 2-week span. But I want to get it fixed. I've attached pictures of where it's coming from and was hoping to get pointed in the right direction. Also its a 05 f250 and coming from the driver side.
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Went to the store came home no problems. Went out to go to work next morning truck won't start. Cranks just fine just doesn't try to run. Was not getting voltage at ficm replaced board in ficm have correct voltage now but still won't start
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