Coast Resorts Open Roads Forum: Rear Jolt on 2017 Ford E450 V10 with only 6,300 miles


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Open Roads Forum > Class C Motorhomes > Class C

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bobndot

USA

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Joined: 08/21/2007

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Posted: 08/03/23 11:50am

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VQ74,
We might need to bring in Lt. Columbo to solve this mystery !

If you can't see anything that's broken or cracked then you need to dig into another possible avenue.

I came across this link while making an attempt to help [emoticon]

You guys that are mechanics would be a better judge then me.

My thought is an 'electronic fault error' being sent to the tranny causing a physical-mechanical jolt in the drive system. RE *coil pack and throttle body or something other ??

https://getjerry.com/questions/why-does-........car-jerk-when-im-stopped-at-a-red-light-

Grit dog

Black Diamond, WA

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Posted: 08/03/23 01:18pm

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^Now I know where you were headed with that info previously. That could cause the engine to sputter or buck a little which any change in rpm’s could be felt in the drivetrain.
I won’t get into how I think that’s unlikely it’s the cause, as a vehicle that large isn’t going to lurch from a little burble in the rpm’s. And it would look and feel like the engine running rough IMO.
But good suggestion and a possibility for sure.
Even though the OP doesn’t seem very interested in answering follow on questions….

2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

obie311

Aux Arcs

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Posted: 08/09/23 06:26pm

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klutchdust wrote:

Lumpty wrote:

My guess is something driveshaft related, either the slip yoke at the transmission connection, or on many long wheelbase trucks there is a constant-velocity joint in the center, or a carrier bearing there, that may have some play.

I have experienced that on my 2500 GMC pick-up when towing my trailer. I removed the driveshaft and lubed the splines and it's been good for many miles. I had a clunk sound when moving from a stop.
The OP hasn't said much regarding his experience with all things mechanical so hopefully something said here helps.

If the splines aren't lubed on the driveshaft, they can bind and then suddenly release at a stop when there is no torque on them. That could feel like a little bump from the rear.