Ford 6.7L Power Stroke Diesel :: AC Blowing Nothing But Warm Air
May 24, 2016
Well it's that time of year to start using my air conditioning. Went to use it today and it is blowing nothing but warm air. Worked perfectly last time I used it last year. I thought about buying that 134a ac recharge kit from auto zone.
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Started today. 2004 with 235k miles. Owned for last 10k miles. Engine was recently studded, has egr delete and ccv bypass. Runs and starts fine. New Ford oil cooler too. Checked for codes. None for misfires, perdel are reading 0.
If it sits, on start up clear exhaust, as it warms, more blue smoke. Smells like oil not diesel.
Researched before asking and found leaking turbo seals can cause this. So we pulled the intercooler tube in front of the engine going to the intake expecting to find oil residue. Nice and dry. Was this the correct one to look at?
When we got the truck we had the dealer do a relative compression test and was within limits, it did need 1 injector that we replaced. What would be the next logical place to look?
Couple more points:
- Just changed oil last week, checked today, it was slightly over full.
- Coolant is fresh and has not changed level since we got it.
- Pulled fuel filter to see if any oil, but it was nice and clean.
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According to the scan gauge... I used to run about 195-200* all the time no matter what.
Now days i find myself up into the 220s and with my boat on ill see 235 climbing a hill.
Good deltas between the water/oil temps.
I wanna get back to my 200's.
I pressure washed out (on low) the front radiator and all the coolers, I didn't get much out and they didn't look dirty.
I am thinking water pump or plugged radiator?
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Say I just purchased an 06 f250 crew cab with the 6.0.
I had her trailered home due to dead batteries. I got her started up and drove about 5 miles until she got up to operating temp.
When I came to a stop and tried to accelerate, she immediately bogged down and started studdering with white smoke coming from the exhaust.
I shut her down and started her up again. She started and idled fine, but as soon as I pressed on the accelerator, she bogged and studdered again. I shut it down again and started it back up. Normal idle, and I shifted her into gear and was able to mozy on idling forward without having her bog, but as soon as I touch the accelerator, she bogs and studders.
I towed it home and the next day (today) she started just fine and I shifted her into drive and moved it forward about 10 feet. Did not touch the accelerator so she didn't big or studder.
1. I am guessing the white smoke was coolant burning through a failed EGR circuit. Do you seasoned members agree?
2. It the a check engine code when studdering. I have yet to check codes so I am still in diagnosis mode.
3. I plan to block off the EGR pipe and throw in a new oil cooler. Anything else immediate I should be considering??
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Left on hunting trip last Thurs. Blew tire on trailer 6 miles from home. Shut off truck. Went to restart, cranks only. No codes. Towed home.
Thought it might be a fuel filter problem. Had just changed oil/filter and fuel filters prior to trip. Checked filters, upper bowl was low. Turned key to on and bowl filled up. Noticed filter wasn't snapped in lid. Also checked lower filter.
Drove it to work this am. Turned off truck and tried to restart to check. NO START-Cranks fine!!!
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my 2006 6.0 will roll over 300,000 miles this week but today I was pulling a 24' pontoon boat that should only weigh a few thousand pounds from hot springs Ar where there are some small rolling hills and the outside temp was 70 degrees. I was driving between 55-60 most of the drive. On a few of the longer hills my eot got up to 220 with the eot trying to catch up.
On the down side it would fall to 185-190 and the eot would also follow. On about a 5 mile straight stretch the ect was 208 and eot 202. When I got home I opened the hood and I do have coolant puke around the degas bottle. After opening the cap there seemed to be a steam/smoke coming out of the degas bottle. There was still some coolant in the bottom but not a whole lot.
On my drive to work every day my delta is between 6-8 degrees with the ect between 188-194 depending on ambient temp. So does this sound like my head gaskets finally let go? Will them blowing raise the eot/ect when towing?
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I just got this new truck with work and when I started in the mornings and let it run for 10 to 15 minutes like I used to with the 6.2 f250 I had it's still cold in the truck. Need making this thing warm up faster?
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It takes about 10 minutes for the truck to drive normal. If I start the truck and sit for 5 minutes, then start driving... the truck has a very hard time changing gears and accelerating. Just trying to see if this is normal or not ?
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So after I've been driving for a while and stop at a light or drive thru, I will give it throttle and it seems like it wants to stall. Almost like the turbo isn't spooling and then does and all is good again. Is this a sticking turbo bearing or something else? I am not very familiar with this motor(although I have been doing a ton of searching on here) as I just got it about two weeks ago. I should mention that I am getting the 404 and 405 codes so not sure if that could be involved with the egr?
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Just replaced the hpop on my 04' 6.0. It had been down for about a year because my low pressure oil light would come on after warm up. Truck ran PERFECT, but dam light would come on. Eventually it wouldn't start by cranking, but would on a bump. (I have a 6spd.) still ran good. I would never run it over 5 minutes because i didn't want to damage anything. Finally getting around to fix it.
After a day of air testing, we tracked it down to hpop. (air coming out of turbo drain tube). I had a hunch that the dam bb on pump had spit out from similar stories on FTE, and thats what happened.
Replaced pump. (its an older style pump BTW, although i have a january 04 build and every ford parts guy said differently.) Put everything back together and now it runs terrible! We ran the truck for over 20 minutes and it didn't get better. I am afraid its gonna damage something to keep running it. My mechanic says 5 cylinders are misfiring and its something to do with the ficm or injector harness.... But, it ran perfect right before the hpop change???? Everything was double checked to make sure it wasn't something dumb.
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Just went on a trip to SC. It was hot as hell - 100F most of the trip. The a/c would blow cool (not exactly cold) for a while and then go luke warm (way better than outside but not particularly refreshing) for a while. So I was reasonably comfortable but definitely not cold.
This would happen about every 15-30min where I felt like the compressor had stopped working for a while. I am thinking the compressor is probably limping along and about to die. Usually I thought these things just up and die though. Clogged accumulator? IDK - nothing has been done to the a/c system since 2009 head gaskets.
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I have recently developed this problem with my 2005 F250 6.0L with 86,000 miles and don't quite understand it. If I drive my truck and then shut it off for a couple minutes, say to go in the store for a few things, when I try to start it back up it won't stay running. It chugs for a couple seconds at real low RPMs (300-400) then just stalls. When I was at the store the first time this happened, I went back in and bought a bottle of starting fluid and gave it a shot, (I know I know, shouldn't do that) and it started right up and got me home.
Thought it was a fluke as the next time I went to start it, it fired right up (sat over night). Drove a couple hours then shut it off, it sat for three or four hours. I went to fire it up to go to a wedding shower down the street about 20 minutes drive and it started fine. Shut it off to go in and pay my "respects" and was out in ten to fifteen minutes. Again Chug, Chug, Chug, stall. Tried to start it with the same results about ten times, then I said fine went back in and ate some free food and drinks for a couple hours and came back out and it fired right up again.
I drove home tonight and while in by drive way at home tonight I verified this again. Turned the truck off and tried to start it back up ten minutes after unloading the truck and same thing, no start. What could be the problem? Only other issue I've noticed was a lack of power on take off from a dead stop then a like a switch the power comes on in about three seconds.
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How can I tell if the turbo is going? it has a whirl noise after warm up. Boost seems a little slow and seem to have more noise coming from the air filter inlet. I put the Auto Enginuity on and have no codes.
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My 6.0 stalls when its warm and it restarts no problem. no codes are given with scan gauge. No changes on icp or ipr when it happens. At idle icp ranges 577 to 737, fmp 47.5 to 48v, ipr 23 to 28, map 14.9, tfc .32. all at idle. all increase when rpm goes up. ive done the d plugs, sct plug ficm replaced 2 yrs ago. done egr delete, need to trouble shoot? Again no codes given...
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My truck is puffing smoke after about 10 minutes and warmed up (looks white). It happens only one time for about 30 seconds and looks light grey or whitish in color, definitely not black smoke. The truck runs just fine, starts great, doesn't hesitate or studder, doesn't loose any coolant, no signs of pukage. In other words, it Runs perfect.
By the time the smoke happens I am usually at an intersection and see this white smoke billow past me or see it in the pass. side mirror. it's too hard at the time to get out of the truck at that exact 10-15 seconds it smokes to smell it or see it's true color without my sunglasses on but it looks white or greyish. not convinced it's a blueish color.
The truck doesn't smoke at start up or run rough so I'm ruling out injectors. I think it might be the egr cooler that is still connected eventhough there is no hot gasses going through it. (Did the up pipe mod). I might have an egr valve that has a bad seal on it. I'll have to remove the egr valve and see if it looks gummy in there since the egr cooler still routes coolant.
The other thing it might be is a bad oil seal on the turbo which is burning off leaked oil after it's warmed up, again I don't see it smoke for the rest of the day.
The very first time I saw it smoke was the day after I did the up pipe mod and capped off the egr cooler. I may have had a small cooler leak before I did the up pipe mod and now the coolant (if it's coolant) can't run in the exhaust or burn off there directly. My SCT turns off the egr valve but the valve may have a bad seal in it along with a defective egr cooler. will remove the valve to inspect tomorrow if possible.
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Some information about the truck2004 Excursion, Motor has a December 2003 built date listed on the valve cover
Bullet proof complete by Hallas performance just prior to Mike's passing (3 years ago). ARP, EGR, Oil Cooler, lifters, etc..
Newer batteries, DC amp 185 alternator, newer starter, she cranks hard and fast~230,000 miles
Here is the situation: Starts good and fast when cold, even subzero temperatures. She cranks long and barely catches if I make a short stop at a store or restaurant. A few hours later or the next morning is fine.
I found the following codes:
P2284 - Injector Control Pressure Sensor Circuit Range/Performance
P2291 - Injector Control Pressure Too Low - Engine Cranking
P0528
I took her into the local Ford Dealer for diagnosis and here's what they reported. ICP tests good and has the latest pigtails. They reported a leak in either of the following.
Oil injection pump Estimate of 8.5 hours to repair.
Under the Valve Cover Gasket. Estimate of 3.5 hours to repair.
So here are the questions I have. Does this diagnosis sound appropriate? Is it reasonable that they do not know which area is causing the problem? Are the hours reasonable estimates for the repairs? Assuming I go ahead with these repairs, is there anything else I should have them look at while they're in there?
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I have a 03 350 with a 6.0 . The truck starts fine in the morning and runs great all day as long as you don't shut it off. It's not going to start until the morning. It will crank over fine, the fuel pump seems to be working, its like there is no power to the injectors. I don't have a wiring diagram so not sure which relays are for injectors. Could the ficm be causing it? Is there a site where I can download a fuel sys schematic ?
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If the truck is cold when i put it in drive it engages fine. Drive to the store, start it up again after its warm, I then need to rev to 800 rpm to get it to engage. Once drive is engaged one time i can go from park to drive, rev to drive doesn't matter it works correct every time. Rebuilt the transmission with suncoast kit. New precision industries billet torque converter. New trans pump, new valve body, replaced all pistons and seal rings. Replaced all the solenoids except lo rev and overdrive. Will change those in the next couple days. Side note transmission had this exact issue before i rebuilt it. Exhaust back pressure reads 55 to 60 psi at idle. I replaced sensor, cleaned pipe, and checked the wires for cuts. Previous owner had a smoke switch wired up at some point but he removed it before i bought it. Truck is tuned by innovative, sxt livewire... does the same thing with stock tune.
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So, I pretty unimpressed with the air in my 2011 SC 250. I keep the climate at about 69, and seems like is work about half as good as my 2010 F150 with climate did. When idling it blows almost warm, only cools when the RPMs are up there. My F150 seemed to be the same no matter what.
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My truck has fairly recently, for about a year, had a chirp noise after being driven empty for a couple hours or after towing heavy for as little as a half hour. it doesn't chirp until it has been at operating temperature for a little while and it will come and go. The chirp follows the RPM and when I have it in T/H mode it will go away completely while I'm coasting.
I have all 8 new injectors in the last 2 months (replaced for other reasons), I originally thought it was related to them. The chirp is coming from the passenger side of the engine and the best I can tell is it near the front of the engine. I haven't used a listening stick or a scope or anything to try to pinpoint the exact location.
My fear is that it's lifter(s) going out. Is there any way to see the cam/lifters without taking the heads off? I've changed my oil at least 3 times since the chirping started and I never see metal or glitter on the plug or filter or on the drain pan.
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I have an 04 F-250 6.0l Power stroke diesel with a problem. The engine starts fine and runs normally until it gets warmed up. Once it is at the normal operating temperature it starts to sound like it is misfiring when idle. Once I accelerate it sounds normal again but when I slow to idle the misfire comes back.
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