Results for "engine braking"

Engine Easy N/A 133 👍 0

Ford E-350 vs E-450 Chassis: RV Fuel Economy, Power & Weight Capacity

Last weekend I felt this awful engine strain and heard sluggish acceleration sounds while test-driving a 2017 Phoenix Cruiser #2351 with its E-350 chassis and V10 engine. I'll be doing extensive western touring through mountain and plains regions, which means substantial mountain grades and wind challenges. I'm comfortable driving slowly and want to understand two key things: 1) Will this E-350 chassis handle mountain grades without major issues, and 2) What's the real-world fuel consumption like? I plan to do an initial inspection this weekend, followed by a third-party mechanical review. I'm not overly concerned about fuel economy but want to understand the actual performance limitations. I'd appreciate insights from owners who have experience with similar touring conditions on an E-350 chassis. …more

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Engine Hard 4-6 hours 119 👍 0

How to Replace Obsolete F53 Chassis ABS Control Module - Ford Discontinued Repairs Guide

Last week my 2013 Coachman Encounter's F53 chassis started throwing ABS codes — can't afford the $3,000+ dealer quote so is there a DIY fix under $500? Our ABS control module failed, creating a no brakes issue. After being towed to a Ford Dealership on May 28th, the repair has been incredibly complex. They've received incorrect and damaged modules, and even after claiming to fix it, the ABS warning light remains on and reprogramming attempts have failed.

Ford apparently no longer makes this module for units over 10 years old. What alternatives exist for finding a compatible ABS control module for my older F53 chassis when OEM replacement isn't available? …more

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Engine Easy 15 minutes 105 👍 0

5 Star Tuner X4 for Ford V10 RV: Complete Performance & Upgrade Guide

Planning to tune my 2018 Ford 6.8L V10 RV but got quoted $800 for professional tuning and wondering if the 5 Star X4 is DIY-friendly. Specifically want to know about real-world performance improvements - does it actually improve throttle response and shift points? What about fuel economy gains?

Which of the 3 programs works best for RV towing? Is the investment worth it for better drivability or just hype? …more

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Best RV Air Conditioners

4.4 (8,100 reviews)

Chassis Hard 4-6 hours 94 👍 0

RV Hydroboost Brake System Leak: Repair Guide & Solutions

Around my neighborhood, opinions on hydroboost fluid seepage are all over the map—my neighbor calls it normal wear, the RV dealer screams safety hazard, and YouTube mechanics can't agree either. It's not a major leak - just some dampness and staining where it mounts. I'm remembering a previous forum discussion where a user named Subford had similar seepage years ago and wanted to follow up on their experience.

The seeping seems minor right now, but I'm worried it could suddenly get worse while we're on the road. I had attached a picture similar to one I saw in an older forum post. Should I stop driving immediately and get it fixed? Or is some seeping normal and okay to monitor?

My main questions: Is minor hydroboost seeping immediately dangerous? Did Subford ever end up replacing their hydroboost? What does the replacement job involve? I want to be safe but also don't want to panic if this isn't urgent. …more

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Chassis Easy 15 minutes 93 👍 0

Ford F53 Jounce Bumpers Always Touching: Normal Design for 20K+ GVWR Motorhomes

Finally crawling under my Ford F53 motorhome staring at these front jounce bumpers constantly touching suspension components with no clue if this means something's actually broken. According to Ford Special Service Message SSM 53453 for 2020-2025 F53 Motorhome chassis with a GVWR of 20,500-26,000 lbs, this constant contact is actually normal.

The front jounce bumpers (service base part number 3020) are designed to be an active part of the suspension, providing incremental dampening that improves ride quality and cornering performance. For motorhomes in this weight range, constant contact is not an indication of overloading or damage.

You can reference the full details in the official Ford document: https://static.nhtsa.gov/odi/tsbs/2025/MC-11015265-0001.pdf

I want to ensure I'm not damaging my suspension or operating unsafely, but this service message confirms that constant contact is within normal operating parameters for heavier motorhomes. …more

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Chassis Medium 2-4 hours 89 👍 0

F53 Hydroboost Brake System Problems: Complete Repair & Troubleshooting Guide

Between the small hydraulic leak that started on my 1995 F53 hydroboost brake system last month and what's happening now, I'm wondering how much worse this nightmare can get. Right now it's just a slow drip - maybe one drop per minute - and I can feel the power steering is slightly stiffer than normal, plus the brake pedal requires a bit more effort than usual.

What I really need to understand is the theory behind how hydroboost systems operate, since this is different from the vacuum brake boosters I'm used to. More importantly, if this leak gets progressively worse and I don't address it immediately, what's my worst-case scenario? Will I completely lose power steering and power braking assistance, or would I still have manual control of both systems? I'm trying to figure out whether this is something I need to drop everything and fix right now, or if I have some time to plan the repair properly. …more

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Engine Easy 15 min visual, 1 hour full 89 👍 0

Ford F53 Motorhome Brake Inspection: Complete Guide to Checking Rotors and Pads

Turned onto that steep mountain grade last week and heard grinding from my 2014 F53 chassis, but I can't figure out how to properly inspect the brake pads and rotors. I've been crawling around under there, contorting myself into every possible position, but I just can't get a good view of the brake components through the wheel openings.

Is there a specific technique or approach that actually works for getting a proper look at the pad thickness and rotor condition? I really want to stay on top of brake maintenance, but the limited visibility is making this nearly impossible. Should I be using special tools, or is there a better method I'm missing? …more

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Chassis Medium 3-4 hours 89 👍 0

2003 Ford F53 RV Chassis Wheel Bearing Grease Guide - Best Products &

I'm wondering if my grease choice is wrong for my 2003 Ford F53's front bearing replacement when my neighbor's identical motorhome runs perfectly after his service. The original grease that came out was a dark gray/black color and while there wasn't any catastrophic damage, the races showed enough wear marks that I decided to replace everything while I'm in there.

I've been researching different options and keep seeing conflicting recommendations. Some people swear by standard lithium grease, others recommend full synthetic formulations, and I've even seen mentions of specific brands like Valvoline MaxLife and Timken. I know the F53 chassis carries significantly more weight than a typical pickup truck, so I want to make sure I'm using something that can handle the load.

I have the torque procedure down (30 ft-lbs initial, back off, then final setting at 17 in-lbs), but I want to make sure I'm pairing that proper installation with the right grease. What specific grease products work best for the F53 front wheel bearings, and are there any compatibility issues I should be aware of when selecting a replacement grease? …more

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General Easy N/A 87 👍 0

5000 lb RV Hitch Rating Explained: Weight Limits, Tongue Weight & Safety Guide

According to my old Class C setup this same hitch rating confusion was easily solved with basic math — but towing a Jeep behind this Class A motorhome has me worried about weight limits and legal liability. After checking the Jeep website, I noticed that most Jeep models weigh over 5100 lbs, which seems to exceed typical 5000 lb hitch ratings. Could this potentially expose RV owners to liability if something goes wrong during towing? I want to understand the weight implications and safety considerations before hooking up a vehicle. Does this mean most Jeep owners towing with a gasser Class A might be inadvertently exceeding safe towing limits? …more

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Chassis Medium 2-3 hours 86 👍 0

Ford F53 RV Power Steering Flush: Complete DIY Guide (1995-2022)

Looked under the hood of my newly purchased RV and discovered the previous owner left the F53's external power steering reservoir with three return lines in absolutely terrible condition. They all clamp onto separate fittings on the bottom of the reservoir.

I'm trying to figure out the right way to flush this system. Should I be disconnecting each return line one at a time from the reservoir and doing them separately? And if I do that, do I need to cap off the reservoir fitting where each line was connected so it doesn't just dump fluid everywhere when I'm working on the other components?

Or is there a simpler approach that'll get all three components clean without all the hassle of disconnecting lines? …more

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Engine Hard 6-8 hours 84 👍 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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Best RV Surge Protectors

4.6 (14,200 reviews)

Engine Hard 4-6 hours 80 👍 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 Easy 2-4 hours 80 👍 0

Ford E-450 Class C RV Chassis Service in South Florida - Complete Dealer Guide

Need chassis service on my Ford E-450 Class C in South Florida and the regular Ford dealers keep turning me away because of the RV body. Called four dealerships and none of them want to touch it. Looking for a shop that actually works on RV chassis down here. …more

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Engine Medium 30-45 minutes to evaluate performance 80 👍 0

Quad Shock Setup on Ford F-53 Chassis - Performance Review

Looked everywhere and my F-53 chassis is still showing 2.1 inches of body roll with quad shocks installed, but forums claim it should be under 1 inch. As a former high school auto mechanics instructor with 35 years of experience, I've carefully considered the shock design challenges in RV suspension.

I installed additional shocks after discovering that shock suppliers list a single shock design for F-53 chassis ranging from 16,000 to 26,000 lbs. I used Koni shocks ($170 each) and supplemented with Monroe shocks ($75 each) for additional dampening.

Installation required 10" bottom bolts and modified top mounting. I used hardened washers to prevent shock cover contact. Total bolt modification cost was approximately $18.

Completed a 30-mile test drive with no apparent harshness or negative handling characteristics. The suspension feels more controlled during normal driving conditions, but this limited test may not reveal the full performance picture.

What's the recommended approach for thoroughly evaluating quad shock performance on the F-53 platform? Specifically looking for guidance on testing duration, road conditions to assess, and key performance indicators to monitor during the break-in period. …more

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Chassis Hard 4-6 hours 78 👍 0

Ford F53 Hydroboost Check Valve Ball Replacement Guide - RV Brake Repair Tips

Spent the weekend troubleshooting my 1996 Ford F53 motorhome's spongy brake pedal, and now I'm really concerned about the hydroboost system safety. When I disassembled the unit, I discovered there's no check valve ball in the accumulator assembly. The system has been working fine so far, but I watched a video where someone's accumulator failed catastrophically without this ball and damaged other components.

I'm worried about operating the RV without this part, but I'm also second-guessing myself since the brakes have been functioning normally. Do most 1996 Ford F53 hydroboost units actually require this check valve ball, or could mine be a special variant that doesn't need it? I don't want to risk brake failure or cause expensive damage by running it incorrectly. …more

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