Results for "MAF sensor"

Our '99 F53 chassis with the V10 engine hasn't run right ever since we got caught in that torrential downpour last month and now we're dealing with water ingestion issues. I've experienced hydro-lock issues in severe downpours, and I know Ford issued Technical Service Bulletin 04-24-22 specifically addressing this air intake design flaw on the '99 to '04 F53 models. The TSB called for replacing the air intake horn and modifying the intake strap to prevent water from being sucked into the engine during heavy rain conditions.

The problem is that when I contacted my Ford dealer, they told me the critical air intake horn part specified in TSB 04-24-22 has been discontinued and is no longer available. The modified strap is still available, but without the new intake horn design, I'm still vulnerable to water ingestion during storms. With extensive travel plans ahead where I'll likely encounter severe weather, I need a reliable solution to protect my engine from hydro-lock.

What are my options for addressing the F53 V10 water ingestion problem when the original Ford TSB parts are no longer available? Are there aftermarket solutions or modifications that other F53 owners have successfully implemented to solve this issue? …more

Ford V10 surges between 600 and 1200 RPM at idle and gets worse when the engine is warm. Already replaced the IAC valve and cleaned the throttle body with no improvement. Drives fine on the highway but sitting at a stoplight feels like the engine is about to stall. …more

Opened my wallet for a new catalytic converter, cleaned the MAF sensor, checked every vacuum line, and swapped the fuel filter on my 2014 Ford V10 motorhome — still getting P0420 codes and intermittent surging. Some days it runs absolutely perfect, smooth acceleration and no codes. Other days, especially during acceleration, I get this annoying surging that makes driving unpleasant, and that's when the P0420 code shows up on my scanner.

I've been methodically working through potential causes and have replaced quite a bit already: new MAF sensor, both upstream and downstream O2 sensors, checked fuel pressure (it's good), tested plugs and coils, cleaned the throttle body thoroughly, and even replaced the right side exhaust manifold gasket after noticing some seepage there. Despite all this work, I'm still getting the same P0420 code and surging, and my scan tool consistently points to issues on the right bank.

What's really puzzling me is the connection between the surging and the P0420 code - they seem to occur together. Could there be something I'm missing with the exhaust system that would cause both symptoms? I've already addressed the right side manifold, but I'm wondering if there's more to this V10 exhaust system that I should be checking. …more

Got stuck with this 1988 E350 Class C 460 EFI that the previous owner left me — thing absolutely refuses to start. My 1988 E350 Class C with the 460 EFI decided to throw the ultimate tantrum right as we were heading out for a trip - just completely died and refuses to start.

Here's where it gets fun (and by fun, I mean expensive): I've got spark, I've got 40 psi fuel pressure at the rail, timing looks good, and I've already thrown money at fuel pumps, filters, plugs, wires, TFI module, distributor, and even the inertia switch. The thing will occasionally act like it wants to fire but never actually starts. The real kicker? Even when I give it a shot of ether, absolutely nothing happens - not even a sputter!

At this point I'm wondering if there's something more advanced going on that I'm missing. When you have spark, fuel pressure, and timing but even ether won't make it fire, what else could be the culprit on these 460 EFI engines? …more

Opened my RV hood this morning and my Ford V10 crate engine is doing that rough idle and power loss thing again — only when it's above 85°F outside. My 2015 Bounder 35K with 27k miles needed a complete engine replacement, so I had a new Ford V10 crate engine installed. Now I'm dealing with really rough idle, loud engine noise, shaking during acceleration, and hardly any power.

The shop said they fixed a misfire by replacing a fuel injector, but the problems are still there. Now they're telling me they've done everything they can with the engine and that it must be a transmission issue causing all these symptoms. Does that sound right to you experienced folks? I'm just having trouble understanding how transmission problems would cause such rough idling and engine noise, but I honestly don't know enough to argue with them. …more

I turned what started as minor hesitation in my 2014 Fleetwood Bounder Classic on a 2013 F53 chassis with a 6.8L V10 last month into complete engine performance nightmares. With 29,000 miles on the odometer, I'm experiencing an intermittent problem that makes you want to pull your hair out. The engine runs fine most of the time, but then randomly when I step on the gas - especially after downshifting or at low speeds after a turn - it just hesitates as if the key was turned off, though the engine is still running.

I'm pretty handy with basic maintenance but not sure where to start with this kind of issue. No computer codes are being generated, which makes diagnosis tricky. Is this a common V10 problem? What are the usual suspects I should check first before taking it to a shop and getting hit with a huge diagnostic bill? …more

Our '04 Southwind with the Ford V10 started with minor hesitation last month but now it's turned into full P0171 and P0174 lean condition codes. Engine runs fine otherwise - no rough idle, no hesitation, fuel economy seems normal. Just these annoying codes that keep coming back.

I've heard the V10 has some common issues that cause these dual lean codes. Already checked the obvious vacuum lines and cleaned the MAF sensor, but wondering what the most likely suspects are when you get BOTH banks showing lean. Is there a systematic way to track this down, or should I just start throwing parts at it?

Really don't want to take it to a shop if this is something with known failure points on these engines. What would you guys check first? …more

Finally dealing with my Ford V10 throwing the P0171 lean code for the third time this season and I'm absolutely done with these guessing games. My Ford V10 with 60,500 miles threw this code during our recent trip from Maine to Virginia, and while there are absolutely no drivability issues - no rough idle, stalling, or poor performance - I'm terrified something catastrophic could happen on the road.

I've already cleaned the MAF sensor and had a local mechanic check for vacuum leaks and run a detailed diagnostic, which found no performance issues and cleared the Check Engine Light. The engine runs perfectly fine, but that check engine light has me spooked. What if I'm damaging the engine by driving it? Should I be monitoring for specific symptoms? I keep reading horror stories online about lean conditions causing engine failure.

I really don't want to get stranded somewhere or cause expensive damage, but I also don't want to cancel our upcoming trip to Florida if it's actually safe to drive. Has anyone dealt with this specific code on a Ford V10? What should I be watching for, and is it actually dangerous to drive with P0171 when the engine seems to be running normally? …more

Found myself trying to decide between a fuel pickup issue and electrical problem for my Triton V10 that keeps dying during sharp turns into parking spots and tight corners. The engine drops to approximately 500 RPM before completely shutting down, though it restarts immediately without codes. This occurs on a 2006 F53 chassis with 43,000 miles.

The stalling pattern is consistent with power loss during low-speed turning situations, creating safety concerns due to loss of power-assisted braking and steering. Engine performance is otherwise normal during straight-line driving and highway operation. Need systematic troubleshooting methodology to identify root cause - what are the primary diagnostic steps for V10 stalling specifically during turn scenarios? …more

Staring at my neighbor's perfectly purring 2004 E450 motorhome with Ford V10 while mine throws P0171/P0174 lean codes and leaks transmission fluid everywhere. Getting consistent lean condition codes P0171 and P0174 (lean on both banks). Initial assumption was failed O2 sensors, but codes returned after shop claimed repair. Need systematic troubleshooting approach to identify root cause.

Secondary issue: Minor red fluid leak observed during backing maneuvers, appears to originate from transmission/torque converter area. Leak only manifests during reverse operations and extended maneuvering. Fluid loss is minimal - collected only few drops over monitoring period. Transmission operates normally otherwise.

Looking for technical guidance on proper diagnostic sequence for the lean codes and assessment of transmission leak severity. What are the most likely failure points for these symptoms? …more

Pulled out of the driveway for our cross-country RV trip next week when my 1996 Newmar Mountain Aire's Ford F530 460 V8 threw that intermittent check engine light again. Sometimes it goes away on its own after driving for a while, other times I have to turn the engine off and restart it like I'm performing some sort of mechanical magic trick.

I'm starting to think it's either a sensor having an identity crisis or maybe some connections that need a good cleaning (don't we all?). What are the most likely suspects for this intermittent check engine light situation? I'd love to know what sensors or connections commonly cause this kind of on-again, off-again drama before I start throwing parts at it! …more

Apparently I did everything right replacing the engine coils and plugs on my 2014 Fleetwood Bounder 35K with Ford V10 at 49,000 miles yesterday but I'm still getting random misfires at high RPMs. Experiencing random misfire codes exclusively at high RPMs (4000-5000) during hill climbs under load conditions. Check engine light flashes intermittently, occasionally solid.

Completed diagnostics include: full spark plug replacement, compression testing (all cylinders within spec), three ignition coils replaced, MAF sensor cleaning, premium fuel upgrade to 91 octane, and Lucas fuel treatment. Engine exhibits smooth idle and normal operation at standard RPMs. Scanner consistently returns P0300 random misfire code only during high-load, high-RPM scenarios.

Given the intermittent nature occurring specifically under load conditions and the systematic elimination of standard ignition components, what are the most probable remaining failure points? Seeking technical analysis of fuel delivery systems or overlooked ignition components that could manifest these specific symptoms. …more