Results for "tsb"

Engine Medium 2-4 hours diagnosis 269 👍 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 2-3 hours for diagnosis 242 👍 0

1999 F53 V10 Oil in Coolant: Complete Head Gasket Diagnosis & Repair Guide

Called three dealerships about oil contamination in my 1999 Ford F53 V10's coolant system — before I tackle this head gasket nightmare myself. The unit overheated after the oil level dropped significantly, though it still starts and runs without throwing any codes.

Based on the symptoms, I suspect a blown head gasket, but I want to perform proper diagnostic testing before committing to a major repair. What specific diagnostic procedures should I run to confirm whether this is actually a head gasket failure versus other potential causes like a cracked head or block issue?

Looking for a systematic approach to pinpoint the exact problem before I start tearing into this engine. …more

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Engine Hard Professional repair required 175 👍 0

Ford F53 V8 Engine Tapping Noise: Complete TSB 25-2200 Repair Guide for RV Owners

Since I replaced the valve cover gaskets on my 2022 motorhome's Ford F53 V8 yesterday, I'm still hearing that annoying tapping noise — did I miss something? I've been noticing this tapping or ticking sound when the engine is idling, and sometimes it seems to run a bit rough. I'm worried I might have a serious problem.

I found a Ford Technical Service Bulletin (TSB 25-2200, NHTSA ID 11018524) that might be related to my issue. The bulletin mentions potential camshaft and valve tappet wear causing ticking noises, rough performance, and diagnostic trouble codes P0301-P0308. According to the bulletin, repairs might even include a new long block.

Can someone help me understand what this TSB covers exactly? Does it apply to my specific year model, and what kind of repairs might be needed?

Any guidance would be really appreciated - I'm still learning about all this mechanical stuff! …more

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Engine Hard 4-6 hours 164 👍 0

ISL 8.9 Valve & Jake Brake Adjustment: Specs & Tools

The 2004 Cummins ISL 8.9 in my rig is 20 years old and starting to run rough — time for valve adjustments or a full rebuild? What are the intake and exhaust valve specs? I want to confirm the clearance measurements and also need the tool number to adjust the jake brake. Can anyone help me verify the correct specifications before I start this job? …more

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Engine Medium 2-4 hours 160 👍 0

Ford F53 No Spark: Complete Ignition Troubleshooting Guide

Halfway through a cross-country trip, my Ford F53 Class A motorhome with the 7.5L V8 cranks but won't fire, has zero spark, AND left me completely stranded. The issue began intermittently with starting problems, then progressed to a complete no-start condition with zero spark at both the coil and distributor.

I've systematically replaced the distributor, ignition control module (ICM), and coil, but the no-spark condition persists. This is an EFI system without a crank position sensor - my research indicates it relies on the pickup coil within the distributor for ignition timing.

What are the most likely causes for this complete ignition failure, and what diagnostic steps should I follow to isolate the root cause? I need a methodical troubleshooting approach since parts replacement hasn't resolved the issue. …more

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Engine Medium 1-2 hours 154 👍 0

Ford F-53 Steering Wheel Clunk Fix: Complete Diagnosis & Repair Guide for RV Chassis

Halfway through summer, my '95 F-53 motorhome chassis steering wheel only starts making this weird clunking noise when it's above 85 degrees outside — runs silent the rest of the time. When I hit certain bumps, I get this annoying clunk that I can actually feel through the steering wheel. Had the front end checked and everything seems tight up there, but here's the kicker - when I grab the steering wheel and mess with it, I can push it straight back into the column like I'm trying to compress a spring or something.

Is this normal for these old F-53s or am I looking at some worn out parts? The clunk is definitely coming from somewhere in the steering column area, and that push-in play has me scratching my head. What should I be checking first? …more

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Engine Easy 30-60 minutes at dealer 151 👍 0

Ford F53 AdvanceTrac Warning Light: TSB Software Fix for Motorhomes

Already seeing that AdvanceTrac warning light on my F53 motorhome chassis. Because apparently my RV decided it needed MORE personality quirks, right? Now my cruise control won't work (there goes my lazy highway driving), and the hill assist is MIA too. I'm getting mixed signals here - is this one of those "pull over immediately and call a tow truck" situations, or more of a "well, that's annoying but I can still get to the campground" kind of deal? And please tell me this isn't going to cost me my firstborn child to fix at the dealer! …more

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Engine Medium 2-4 hours for custom fabrication 151 👍 0

F53 V10 Water Ingestion Fix When Ford Parts Discontinued

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

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Engine Medium 1-2 hours 150 👍 0

4R100 Transmission Temperature Gauge Sender Location Guide for RV Owners & Mechanics

Despite my RV mechanic insisting I need a completely new 4R100 transmission for overheating, shouldn't I install a temperature gauge first to verify what's really going on? I can't seem to find any factory temperature sender on this transmission - am I missing something obvious?

I'm nervous about drilling into the pan or tapping into lines since I don't want to create leaks or cause more problems than I'm trying to solve. Is there a safe, proven way to monitor transmission temperature on a 4R100 without risking damage? I've heard about electronic options too but not sure if they're reliable. …more

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Engine Medium 3-4 hours 147 👍 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 Hard 6-8 hours 141 👍 0

F53 Rear Pinion Seal Replacement: Complete Dana 17060 RV Axle Repair Guide

I replaced my Dana 17060 rear pinion seal myself after getting quoted $1,800 for my 2018 Allegro 32SA and saved a fortune. I've been researching this repair and I'm honestly getting overwhelmed by what I'm reading about the complexity.

The more I dig into this, the more concerned I'm getting about the specialized tools needed and the precision required. I'm specifically wondering about the 650 lb torque specification, finding a socket that fits the nut and can work with a 1-inch drive, and the best method for removing a potentially loctited nut.

Is this realistically a DIY job for someone with decent mechanical skills? I've already marked my components for driveline alignment, but I'm unsure about seal removal tools, whether to use heat for nut removal, and if I should use loctite when reinstalling.

Is this something I should attempt myself or just pay for professional work? How long does this type of repair typically take, and what am I really looking at in terms of complexity? …more

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Engine Medium 1-2 hours 141 👍 0

Ford F53 Bump Stop Replacement: Broken Front Leaf

Despite replacing F53 chassis bump stops twice already this season, my 2021's driver's side front leaf spring bump stop has completely vanished again and I'm done guessing. Just... gone. Vanished into the ether.

I'm seeing a bunch of aftermarket polyurethane bump stops on Amazon and other places, but honestly not sure if I should just bite the bullet and get the Ford OEM part or if there are better options out there. Also wondering if I should be checking the other side too - seems like these things might be prone to failing?

Anyone dealt with this before? What's the move here - stick with factory or upgrade to something beefier? …more

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Engine Hard 2-3 hours 139 👍 0

Ford F53 Chassis Rear Hub Oil Leak: Complete Axle Seal Diagnosis and Repair Guide

Found oil mysteriously leaking from the rear hub area of my 2021 Newmar Bay Star 3626 on Ford F53 chassis even though I haven't touched anything back there. During highway operation, detected burning oil odor emanating from rear axle assembly. Visual inspection revealed oil accumulation on inside surface of rear tire, with leak pattern suggesting differential fluid migration.

No oil contamination observed in engine compartment. Leak appears to be progressing from rear hub area. Need technical confirmation: Is this presenting as classic axle seal failure? What are the immediate operational risks, particularly regarding brake system contamination? Seeking diagnostic confirmation and repair methodology for F53 rear hub seal replacement. …more

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Engine Medium 1-2 hours to identify 136 👍 0

2001 Ford F53 Firewall Module Identification: GEM, ICM & Fuel Pump Driver Guide

According to my spring ritual of firing up my 2001 Ford F53 for camping season, that same firewall electrical module overheats until the black plastic housing cracks. Looks pretty well cooked!

The part number isn't readable anymore thanks to the heat damage, and my local Ford parts counter is stumped. It's definitely some kind of power module since it has that chunky heat sink attached. Anyone know what the common firewall modules are on these F53s? I'm thinking it might be something like a GEM or ignition module, but honestly not sure what I'm looking at here. …more

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Engine Hard 8-16 hours 131 👍 0

Ford Motorhome 4-Speed Transmission: 4R70W vs E4OD

I noticed it's 2 AM and my Ford motorhome transmission just started making awful grinding noises — need to figure out if it's the 4R70W or E4OD before hitting the road tomorrow. I'm converting a half ton pickup into a motorhome and want 4x4 capability. I keep seeing references to different 4-speed automatic transmissions like the 4R70W, E4OD, and 4R100, but I'm honestly confused about which is which and what the differences are.

I'm trying to figure out which transmission would be most reliable for my needs. Some people mention the 4R70W while others swear by the E4OD or 4R100. Do these vary by year or engine size? And is there a clear winner in terms of dependability, especially for someone who might be doing some towing and converting a pickup?

Any guidance would be really appreciated - I feel like I'm drowning in transmission model numbers and don't want to make the wrong choice! …more

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