Ford Truck Enthusiasts Forums - 6.0L Power Stroke Diesel

Cruise Control & Horn Suddenly Stopped Working

miner999r — Thu, 21 May 2026 05:10:15 GMT

Greetings,
Wondering where I should start to look regarding the cruise control and horn stopped working. Further other controls on the steering wheel stopped working but then the temperature and fan control later came back on line. The truck is a 2005 F350 Lariat Dually. For the past year everything had been working until the other day.

The horn fuse did not appear to be burned.
There does not seem to be any other fuse for the cruise control or the horn that I can find.
I have an appointment at the shop for early June. So if you have some advice for the mech / tech to check please let me know.

Thanks

Front cover purchase

lynkage — Wed, 20 May 2026 13:29:19 GMT

Looking for a front cover for my 03.

Is there any problem with the kit from Dale's Superstore? The truck is not anything special just needs to run, so I'm trying to keep the cost to a minimum.

Thanks for any help.

Shane

P0478 code no power

Craig Maffet — Sun, 17 May 2026 02:19:26 GMT

Literally turned off the truck ran in did some work came back 45 mins later truck has no power. Some whistling at take off and turbo chugging when letting off throttle. Found couple threads same exact issue but no one posted resolution.

Before Start baro map ebp all the same 14ish. At 30-35 mph, Ebp is getting 55psi pretty fast. Map is roughly half that 27ish and vgts are at 15%.

Removed the ebp tube and sensor - full of soot. Cleaned it and the connection orifice. Tested some other maps blew out hose and orifice. Swapped in a new vgt solenoid I just put in another truck make sure that was good. Opened up the air filter housing just drove it down the street make sure it's not the air filter - no help. I had one of the boots off the turbo to check things out and didn't quite tighten it down sufficiently post ebp cleanup and it blew off. The turbo is moving some air.

W the map and ebp reporting baro koeoff, nothing thinking it's sensors. The turbo was rebuilt couple years ago. suggestions?

Familiar Boom and Found This

Excurvelle — Sun, 17 May 2026 01:36:56 GMT

I have blown off the turbo hose more than I care to say but never had this happen. Only thing I can think is it was too tight. Fortunately I carry spare turbo hoses and clamps.

Rusty freeze plugs diy temp fix?

wpg_250 — Mon, 11 May 2026 13:28:34 GMT

My freeze plugs are super rusty so to prevent them from getting any worse would it be best to spray them regularly with fluid film or some kind of high heat silicone?

2004 6.0 was driven hot, engine died. where to start?

jav_eee — Sun, 10 May 2026 21:07:10 GMT

just trying to get ahead of a farm truck breakdown repair. the truck was run hot and shut down. there was some steam/smoke coming from under the hood that might be from residual oil from minor leaking being burned off.

just wondering what the first places to check would be. the engine turns over very slowly (might be weak batteries). the engine is bulletproof/studded if that matters.

thanks for your help

Was installing a new blue spring kit...

Fuzzpuss — Sat, 09 May 2026 23:28:10 GMT

And the rubber seal that goes on the brass plunger (or whatever it's called) looked very different from the old one. This is how it came in the bag.

I thought, maybe the forces acting on it over 4.5 years caused it to deform to the shape it's in today. And that's how Ford sent it, so I installed it. With outdoor temps of 60 degrees, my fuel pressure was 80 psi. I knew that couldn't be right, but I couldn't verify with a manual pressure gauge, because my schrader adapter couldn't be found. Over the course of last week, the pressure slowly dropped as outdoor temps went up. This morning it was 80 degrees and pressure was reading 71 psi. So it seemed to be working normally, but still the pressure was higher than I've ever seen with just a new blue spring.

I took a closer look at the old plunger and found something I never knew. The underside of the flange has a bevel undercut, for the conical side of the seal to mate with, it would appear.

I flipped the seal around, put everything back together, and now FP is reading 62 @ 87 degrees ambient temp. I am hoping the fresh spring and seal will keep FP from dropping more than a couple points at WOT. Lately its been dropping at least twice that much.

07 F350 6.0PSD 117k Miles

FishOnOne — Sat, 09 May 2026 14:36:59 GMT

Came across this jewel...

Service Manauals

TooManyToys. — Sat, 09 May 2026 11:03:59 GMT

Charm has moved all vehicle service manuals to a new site called Lemon. It appears to include copies of all the factory manuals, so you can view them, and I've downloaded a few (within Charm).

https://lemon-manuals.org.ua/

I'll post what it looks like, as if I were removing the intake manifold on my 2003 F-350. The first three steps:

And the next four:

The diagrams and illustrations seem to be the same as in the manuals. But I have not gone through all the offerings in depth to check for quirks. The next two:

Might go buy me a dually tomorrow!

wpg_250 — Tue, 05 May 2026 19:40:16 GMT

Found a 2006 F350 6.0 4x4 studded/deleted/OEM tune dually with full Lariat interior, bull bar and extremely minimal rust with just over 300k kms and I haggled it down to $6500 CAD. I'm told there's no issues with 4x4, engine, head gaskets or oil cooler and it's a strong runner so I'm driving 4 hours tomorrow to check it out and I'll bring FORSCAN with me of course. I've had very good luck purchasing vehicles from farmers so fingers crossed on this one fellas :)

Hydrolock cylinder 4, guessing head cracked

Craig Maffet — Tue, 05 May 2026 12:33:44 GMT

It'll crank w glow plug out. It'll crank key off glow plug in. As soon as the fuel pump kicks on it'll crank til it fllls up w fuel. Guessing it's fuel bc I've got the coolant level down w the degas off.

i cannot see any cracks anywhere. Haven't put pressure to the cooling system yet to see if it's the cup but it's def only coming thru when fuel pump on.

sitting here looking at a head diagram and im perplexed out a head crack can bypass the lower fuel seal that sits inside the cup even if one is there. Obviously its likely the head itself and not the cup bc a cracked Cup should put
fuel into the coolant rather than the cylinder. Guessing just time for another head - anyone worked around this issue got insights that aren't necessarily posted? I know there's a company selling a fix but will that larger cup fix all circumstances? Anything im missing making the decision?

To those who've done the 6.4/6.7 starter upgrade.

wpg_250 — Tue, 05 May 2026 11:49:06 GMT

Did you buy a brand new starter from Ford or did you buy a reman from NAPA/O'Reilly etc?

6.4 trans pan/filter upgrade

wpg_250 — Mon, 04 May 2026 13:01:42 GMT

Sometime this week I'm going to upgrade to the 6.4 pan/filter and refill with Motorcraft mercon LV and I'm curious if I should attempt a full flush or just do a couple drain n fills over the next 5-10k kms? I have no idea if there's mercon lv in there or if it's Valvoline lv compatible so I'd prefer to do a full flush, but I'm not sure what the procedure is for that. I'll be replacing the bypass filter as well.

Thanks fellas :)

Misfire on cyl. 6 compression test?

Sandicaine — Sun, 03 May 2026 18:22:18 GMT

Hey guys. It�s been a while but I know you can help. My truck started running rather rough and blowing white smoke. Code is misfire on cyl. 6. My question is do I need to pull all glow plugs to do a compression test or is cyl 6 good enough for diag.

My new truck

hotvet67 — Sun, 03 May 2026 16:52:57 GMT

The F-050 not the F-350 , I could haul this one in the F-350 box weight wise

needed to replace my old 09 rusty malibu so why not a car / truck