Results for "OBD connector"

Engine Easy 5 minutes setup 89 👍 0

Best OBD2 Scanner for Ford E450 V10 Motorhome: Top 3 Diagnostic Tools

Three different OBD2 scanners are showing 6 active codes on my 2015 Ford E450 V10 motorhome but every manual says this engine should only throw 2-3 max. I've been dealing with intermittent check engine lights and some transmission quirks, but my basic code reader just gives me generic codes that don't tell me much.

I keep hearing about tools like BlueDriver and some Ford-specific software, but I'm not sure what actually works well with these motorhome chassis. I need something that can give me real Ford-specific diagnostics, not just the basic OBD2 stuff. Has anyone found a scanner or diagnostic tool that actually works properly with the E450 V10 setup? I'm willing to learn something new if it means getting better diagnostic capability. …more

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Engine Medium 3-4 hours 88 👍 0

Ford F53 Chassis Misfire Problems: Early Spark Plug & Coil Failure Solutions

Walked out to my 2021 Class A motorhome this morning facing the third Ford F53 chassis misfire this year and I'm done throwing parts at it blindly. We've got less than 20,000 miles on the odometer, but recently experienced rough running and got a check engine light. When I took it to a Ford dealer that services Class A rigs, they diagnosed misfires in two cylinders and recommended servicing the entire fuel system. I ended up having them replace all eight spark plugs, plug wires, and ignition coils since we were already dealing with failures.

The coach now runs better than it ever has since new, which makes me think the original components may have been subpar from the factory. What's really bothering me is that we shouldn't need major ignition system work this early in the vehicle's life. I'm curious if other owners of 2021 or newer F53 chassis motorhomes have experienced similar premature failures with their spark plugs, ignition coils, and plug wires? Is this pointing to some kind of quality control issue with Ford's ignition components on these newer chassis, and should I expect better reliability from aftermarket replacements going forward? …more

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Engine Easy 45 minutes 83 👍 0

2022 Ford E450 Check Engine Light: Complete DIY Troubleshooting Guide

Last week marked the third time this month my 2022 Ford E450 motorhome check engine light flicked on at only 4,000 miles and I'm done with mechanics. Last month I had the engine serviced at a local shop, and everything seemed fine when I drove it home. The RV ran perfectly for several weeks without any issues whatsoever.

Yesterday when I started the engine, the check engine light came on and stayed illuminated. According to my Ford owner's manual, this particular warning light is typically related to emissions system problems rather than more serious engine damage. The timing is suspicious given that it appeared shortly after the recent service work.

I don't currently have an OBD2 scanner to pull the specific diagnostic codes, and I'm really hoping to avoid another expensive trip back to the shop just to have them run basic diagnostics. Before I spend more money on professional diagnosis, are there any standard troubleshooting steps I can perform myself to potentially identify and fix simple issues that commonly cause check engine lights on these Ford E450 chassis? I'm particularly interested in emissions-related problems that might have been disturbed during routine service. …more

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Engine Medium 2-4 hours diagnosis 83 👍 0

RV Engine Stalling & Transmission Issues - Diagnosis Help

Replaced multiple parts but I'm still standing in the auto parts store aisle staring at diagnostic tools with no clue which one I actually need for my RV's stalling and transmission issues. When I'm cruising and let off the gas, sometimes the RPMs drop like a rock, other times they just hang there until I slow down more. That's weird enough, but here's the real kicker - every now and then the whole engine just dies on me when I'm rolling up to a stop sign or red light. Maybe happens twice in 600 miles or so, so it's not constant but definitely not normal either.

I'm wondering if these two issues are connected somehow? Like could whatever's causing the stalling also be messing with how the transmission acts when I let off the throttle? Really hoping someone has seen this combo before because I'm in Germany and finding RV-specific help is tough.

I'm looking for any insights from folks who might know what could cause this - hoping to get to the bottom of this before it becomes a bigger problem! …more

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Engine Hard 3-4 hours 74 👍 0

1988 E350 Class C 460 EFI Won't Start - Advanced Fix

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

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Engine Medium 1-2 hours 74 👍 0

How to Replace Rear ABS Sensor on Heavy Duty RV Chassis - Complete Guide & Tips

Looked forward to spring camping season prep on my 2011 Ford F53 22,000 lbs GVWR RV, but that damn ABS light killed my inspection plans again. I'm trying to figure out where exactly the rear ABS sensor is located, specifically on these heavy duty chassis. I found a RockAuto part (WELLS 5S12339) that seems specific to my 2011 model.

I see there's one sensor at each rear wheel. I've already removed a small screw, but I'm unsure about next steps. Do I need to remove the wheel, drum, or bearing to access the sensor? There seems to be a metal cap over it that's complicating things.

Any advice on accessing and replacing this sensor, especially dealing with potentially rusty mounting hardware? I haven't found clear guidance on YouTube or IRV2.com for my specific setup. …more

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Engine Hard 4-8 hours diagnostic time 72 👍 0

Ford V10 Crate Engine Problems: Rough Idle & Power Loss

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

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Engine Medium 1-2 hours 71 👍 0

Ford V10 Engine Hesitation: Complete RV Troubleshooting Guide

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

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Engine Easy 30 minutes 68 👍 0

RV V10 Engine Dies During Sharp Turns: Troubleshooting Guide

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

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Engine Medium 1-2 hours diagnosis 67 👍 0

P0339 Code Fix: Ford 7.3 Godzilla Crankshaft Sensor Diagnosis & Repair Guide

Every time I see that P0339 code pop up on my Ford 7.3 Godzilla, I wonder — would crankshaft position sensor replacement be covered under my extended warranty? My 2022 RV with the 7.3 Godzilla engine (27k miles) threw a P0339 code along with hard starting and poor acceleration. Engine would barely turn over, then when it finally started it ran like garbage with warning lights everywhere. Could barely maintain 10mph before I had to shut it down.

Here's the weird part - I cleared the codes with my scanner and everything went back to normal! Engine starts fine now and runs perfectly. But I'm worried this is just the calm before the storm. What does P0339 actually mean on the Godzilla motor, and should I expect this problem to come back? Really hoping this might still be covered under warranty since the miles are so low. …more

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Engine Medium 45 minutes 67 👍 0

1995 Ford F53 460 Engine Stalling: How to Replace Ignition Control Module for RV Reliability

Woke up this morning hoping my 1995 F53 motorhome with the 460 7.5L would run smooth after replacing the ignition control module yesterday, but it's still stalling randomly. It keeps stalling every time I come to a stop - literally dies on me at around 5mph just as I'm braking. The power steering goes out and it's a real struggle to get stopped safely.

I can restart it immediately and it runs fine as long as I keep giving it gas, but this happens at EVERY stop sign and red light. Currently, it won't start at all - just cranks with no spark. I previously had an EGR code 334 that went away after replacing the EVR sensor.

My fuel pressure gauge was showing 30-32 psi at idle and about 40 psi at wide open throttle. When I tested the vacuum line on the fuel pressure regulator, no fuel spilled out and the pressure didn't change.

I've already replaced many parts (including distributor cap, plugs, wires, EGR valve, ICM, fuel pressure regulator) with only 2,000 miles on them. I discovered that swapping the ignition control module seems to temporarily fix the issue - it starts with a new ICM but dies when I return to the original one.

I'm really concerned about potential highway driving with these intermittent starting problems. Is this a common issue with these 460 engines? …more

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Electrical Medium 2-3 hours 66 👍 0

How to Install Brake Controller on 2025 Thor RV Ford Chassis - Step by Step Guide

Found myself staring at my 2025 Thor RV Ford chassis this morning, realizing I'm still missing that brake controller I should have installed months ago. I know I need some kind of brake controller to operate the trailer brakes safely, but I'm honestly not sure where to start.

I've heard that Ford chassis might come pre-wired for this, but I don't really know what that means or what brake controller brands work best. Could someone walk me through what I need to look for and how this whole installation process works? Any guidance would be really appreciated! …more

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Engine Medium 1-4 hours 62 👍 0

How to Diagnose and Fix RV Fuel Injector Problems: Complete Repair Guide for Motorhomes

The mechanic wants to replace all my fuel injectors on my 1996 F53 460 motorhome after I installed a Banks Power system with Accel 24 lb, but this sounds like complete overkill. injectors. It's been running rough, especially at idle, and I'm getting intermittent check engine lights. I don't want to make things worse by guessing or doing the wrong repairs.

I'm honestly a bit intimidated by fuel system work - I've heard horror stories about people causing expensive damage. The injectors I installed were Accel 24 lb., and I want to confirm if these are correct for this engine. I'm planning to pull a plug soon to check my fuel mixture, but I need some expert advice on the safest way to diagnose whether my injectors are actually the problem. I want to be absolutely sure before I start throwing parts at it or risk damaging something else in the fuel system. …more

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Engine Medium 2-4 hours 60 👍 0

1996 Ford F530 460 V8 Intermittent Check Engine Light Fix

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

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Engine Easy 10-30 minutes 58 👍 0

How to Find the OBD-II Connector on 1997 Ford F53 Motorhome Chassis

Noticed OBD-II scanners are everywhere but before I drop cash on one for my 1997 Fleetwood Bounder with Ford F53 chassis — where's the diagnostic connector actually hiding? I've been crawling around under the dashboard for what feels like hours with a flashlight, checking every obvious spot I can think of.

I know it has to be somewhere under the driver's side dash area, but I'm just not seeing it. Is it hidden behind a panel or mounted in some weird location? At this point I'm wondering if I should be feeling around for it instead of just looking. Any specific tips on exactly where Ford put these things on the '97 F53 would be incredibly helpful - I really need to get this diagnostic scan done! …more

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