Ford 6.0L Power Stroke Diesel :: Cooling Fan Came On At Start Up?
Feb 21, 2011
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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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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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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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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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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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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Had long start issues. Would turn over for 5 seconds - shut off- turn over for 5 seconds - shut off - third try on 4-5 seconds the low oil pressure would come up and HOP would fire injectors and start up.
Was not sure what was up, so look it to Ford. They did leak down test and found seal at the top of injector 4 was leaking. Replaced it and leak moved to other injector. Basically moving to the next weakest seal point. I told them to stop as i did not want to pay, parts, labour and shop time to replace all injectors, etc. They also said power across all injectors was good, but 3 & 7 were not contributing on cold start.
I drove it home and bought parts. New cups and seal for all 8 on fuel rail. New gasket kits for injectors. Plus 2 new injectors to replace 3 and 7.
Replaced injectors in 3 & 7 with the 2 remanufactured i bought. Replaced all cups and seals on fuel rails. So it has new injectors in 3, 4 & 7.
As for the other injectors i took the 5 of them right apart and cleaned them and re-assembled. Took about an hour per injector, took my time to get it right, just FYI. Went pretty good i thought. Seemed pretty straight forward actually.
Now no start - no high oil pressure at all. LOP comes up right away. Scanner shows no HOP no matter how long i crank it.
FICM power good, 47.5 - 48
shows FICM sync - YES
IPR sits at 14% and jumps to 84% on crank - starting, see photos below.
Scanner prior to crank
Scan during crank
Note zero IPC - PSI
Right now.... Got the valve cover off on passenger side. Cannot see oil squirting out the sides of any injectors, but line of sight is limited. Maybe need a small mirror to see in there. LOP comes up better than it has in years, but no HOP now. Before rebuild it seemed i had good HOP but low LOP.
I drove it home from Ford and into my garage, so i do not believe the HPOP crapped out sitting in the garage, so i am ruling that out as a fail, at this time.
Dummy plugs were replaced 5 years ago and o-rings looked decent.
Pulled the small plug screw at the top of the fuel rail. Cranked it until oil came out, bleeding air. then replaced the screw plug. Have not done that on drivers sideyet. Will try that tomorrow. However, think this is more than an air issue, as i have cranked it over plenty, unless i just have that much air.
Going to pull the valve cover on the Driver's side tomorrow. Then will have both covers off at same time to view all.
Noted that if i put compressed air into the screw hole on top of the fuel rail, i can hear air coming out from below the fuel rail. Nothing at the base or around injectors. Does not seem to be at the cups either.
Just wondering.... Buy applying air to those screw plug holes, is that the same as doing the air test at the sensor that pokes up through the valve cover.
With air pressure at these scew plugs on the fuel rail, should this be sealed and be air tight and hear no air leakage. Because it was not air tight on the drivers side before i closed that side up. I am curious about this.
I am assuming i still have a HOP leak. I do not think i have a failed HPOP. How to better chase a HOP leak?
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I recently bought an 03 F350. I've noticed on cold starts that it has no power. After about 5 minutes it runs very well. I have not noticed any misfires or smoke and there are no codes thrown. Based on what I have read here, I assumed it was a FICM issue. I just got done testing it and it was at a solid 48v with 1 dip to 46 on engine crank. I'm baffled at this point. The truck literally has no other issues except low power for the first 5 minutes.
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Have a 2004 f250 that is having issues. Once the truck is started the idle goes from normal to loud almost sounds like its going to stall. A few weeks back the same happened when i was on a red light. It choked almost to where it was going to die. I accelerated when light turned green and would not move at all. I had to literally use full throttle to get out the road at about 5 mph. I pulled in to a gas station and fueled up as i had a quarter of diesel left and it stopped the rough idle and power starvation once i started the truck up again. It sees like this time its getting more persistent... FML AND THESE 6.0 problems
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I was driving and my truck started have lack of power, could barely get going on hills, tons of blue smoke (smelled like diesel) real rough idle. I unplugged injectors and found #5 made no difference. I replaced it today and I can't get it to start. It'll get to 2000+ psi 48v ficm, low pressure oil registers, ficm says its in sync. It will crank and blow a lot of black like its half firing or something. It has even crank to, until it tries to fire. From what I've been reading could it be the ficm? That one circuit is fried?
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Don't know where to start so I'll ramble!
2005 f350 with the 6.0. Crew Cab, 8' box, 4x4 with DRW. I use it only take the boat to the launch 5 minutes away once in a while and to pull car trailers every other week. Majority of driving is on the highway and average trip is about 300 miles. Low power and now no start.
No codes. I do have a scan Gauge and can provide data.
Was running this week, but has had a lack of power for some time. I had put 2 new injectors in last summer. Also updated dummy and stand pipes. Blue spring. Also new IPR at the time.
Ficm board was replaced in March.
New injector harness last year. New Glow plug harness last year.
Coolant level is fine and none being lost.
CAC hoses appear fine, no cracks.
No boost. But newer MAP sensor, hose not cracked or plugged and nipple on intake is clear. Put the MAP sensor last year and it didn't make a difference.
Turbo was rebuilt 2 years ago.
IPR has to hit close to 80 before boost hits 12-15. But it takes a while to get there.
Now won't start.
Yesterday am it was about 30 farenheit and no start. Last year would start no problem.
Batteries are fine. tested.
Engine fires within 3 seconds, but doesn't want to run.
ICP is above 500. climbs as I turn over.
Fires only in first few seconds and then nothing while I keep cranking it. it is cranking fast enough though.
Now...I see IPR will hit 84.7% and then 14.8%. Not good!
When running it sits in between.
FICm voltage is 48.5 key one and 47.5 when cranking.
Wondering if possibly IPR screen is plugged? Or would CKS or CPS cause issues? I recall reading about pulling one of them and cleaning rust off of it? Also...should mention, no EGR reading on scan gauge..never was either. I had checked and cleaned egr valve before. it was clean when I pulled it and not sticking.
Intake had been cleaned 2years ago. Also, on occasion, while pulling up hill, I would get power! Black smoke and it would race up a hill like it's supposed. Then it would go back to no power.
Also...if I pull the MAP hose from the intake nipple, should I feel suction from the intake? There doesn't appear to be any air coming or going from the nipple.
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I have 2005 f350 with 365000 km on it I have it for one year and don't have a problem till last week. I was pulling van on dolly uphill and sadden lost pover, so I stopped and check oil leaks ,transmission .... But everything looks ok in couple minutes start engine and go home (10 km). Change fuel filters trans filter, looked good for 50km and star losing power again and doesn't want start. So I skan and its show me next numbers.
Key on engine off
Ipr-15%
Icp-0psi
Icp-.26v
Ficm main power-47.8
Ficm logistics power-14.5
Ficm sync is good
Engine crank
Ipr-85%
Ficm main power-48.0
Ficm logistics-12.5
Icp- 625psi
Icp-.77v-1v
So what I have to do?
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Long story behind it but finally got my scanner working right and checked the suggested systems for p2290.
IPR was 77+ on start up dropped to around 31 at idle
FMP is in the 46.5 to 47.5 range
SYC was at 1 and occasionally at 1.5
ICP was at 550-650 during startup and quickly ramped up to 1150 then settled into around 850 at idle.
The only thing that I'm not sure of is the IPR being 31 at idle, is that what it should be. The others I think are within normal operating parameters.
The truck starts but has no power. Can barely go up a slight hill on my street. Seems like it's going to be fine but as soon as I apply a little gas it just falls off.
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