Mojave shock end cap screws rusted

[LostWoods]

All 4 of mine are rusted as well, just like the picture above. I noticed the fronts the other day, and brushed on some heavy wax type corrosion inhibitor. Haven't done the rears yet.

I'm not a shock expert by any means, but that should be the area where they pressurize the reservoir with nitrogen, right? So, I'm assuming that the screw we are seeing is just a cap that can be replaced and removing it will not release nitrogen.

I'm curious to hear what the dealer says about this. I can't imagine that they are going to want to replace a complete shock because of a rusty screw.

Not an expert but have a fair bit of experience with these kinds of shocks and that end cap looks just like every other Fox shock I've seen... normally that's where the valve screws into the body. These are an OEM part so I'm willing to bet Jeep made sure there was no way for someone to accidentally release the nitrogen and instead had Fox install a screw.

Any engineer knows things are never done perfectly and conscious sacrifices are made in some areas when prioritizing requirements. It's entirely possible the use of steel was a conscious design decision and not malcious so I don't know what all this bitching about Sellawhateverthefuck's requirements is. Unless you were on the design team you don't know.

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[KB34]

Not an expert but have a fair bit of experience with these kinds of shocks and that end cap looks just like every other Fox shock I've seen... normally that's where the valve screws into the body. These are an OEM part so I'm willing to bet Jeep made sure there was no way for someone to accidentally release the nitrogen and instead had Fox install a screw.

Any engineer knows things are never done perfectly and conscious sacrifices are made in some areas when prioritizing requirements. It's entirely possible the use of steel was a conscious design decision and not malcious so I don't know what all this bitching about Sellawhateverthefuck's requirements is. Unless you were on the design team you don't know.

And any engineer has the right to question an entire design if they can’t design a simple part properly to the requirements. And yes, I review the design standards quite often, in most cases any corrosion is deemed a failure.

If the screw can’t be spec’d properly what makes me think the entire shock is designed properly…

 

[sharpsicle]

If the screw can’t be spec’d properly what makes me think the entire shock is designed properly…

I see this argument so many times and it's really a logical fallacy created to make the problem sound larger than it is with the intent to build unnecessary urgency. There's absolutely nothing about this one screw that you should be interpreting as a sign that the shock as a whole is designed improperly. It's one screw holding a cap on. Don't blow it out of proportion. If you have other evidence that the shocks were actually built wrong, I'd be very interested to hear about it.

 

[81Mojave]

Any actually know if Fox makes these in house? I would think Jeep makes them under license.

 

[bac]

Lots of folks are challenging the OP for being too concerned about this issue. I can see both sides of it.

Yeah, it's just four screws. But the four screws on my truck are already pretty well rusted and soon I'd say they will be too far gone to remove. I live at the beach so I'm very concerned about rust. I've had my Mojave for three months and I'm not happy to see any rust so soon.

I will replace the screws myself with stainless when I know what they are and it is safe to remove them. But I'm glad the OP found the problem and is willing to bring it to Jeep's attention, whether they take it seriously or not.

 

[jsalbre]

For those worried about what the screw may do, has anyone reached out to Fox to ask?

 

[rubber_ducky]

Lots of folks are challenging the OP for being too concerned about this issue. I can see both sides of it.

Yeah, it's just four screws. But the four screws on my truck are already pretty well rusted and soon I'd say they will be too far gone to remove. I live at the beach so I'm very concerned about rust. I've had my Mojave for three months and I'm not happy to see any rust so soon.

I will replace the screws myself with stainless when I know what they are and it is safe to remove them. But I'm glad the OP found the problem and is willing to bring it to Jeep's attention, whether they take it seriously or not.

according to the OP, who is familiar with materials standards on these vehicles, you shouldn’t see any rust.

Also, I wouldn’t go changing fasteners to SS units… I imagine that some bolts are meant to stretch, some are meant to be harder than others, etc. Stainless fasteners may not be the best material in every application.

 

[jac04]

I have several small areas of rust on my chassis, and on some bare metal areas on my front steering knuckles. It seems my Mojave has failed and I need to return it for a new one.

All kidding aside, do we know that the rust seen on the screws is not by design? The end caps of the shock reservoirs appear to be aluminum, so you need to make sure to pick the appropriate fastener material. It it possible they are 'weathering' steel, which forms a stable oxide (rust) layer by design?

 

[jac04]

I refuse to accept anything but a replacement on a part that clearly did not pass the strict environmental validation requirements.

Any updates on getting the screws or shocks replaced?

 

[KB34]

Any updates on getting the screws or shocks replaced?

Haven't had time to take the truck there during the week. Not even at 4K miles yet, so not even due for an oil change.

 

[MojaveCT]

While swapping out my plastic bumper on my Mojave I noticed the end cap screws on the fox remote reservoirs were completely rusted. My Gladiator only has 850 miles on it. These definitely did not pass the FCA/Stellantis salt spray test requirements. I will be taking it to the dealer this weekend and getting them to order new shocks and replace these.

I haven't checked the rears yet, but will do it this afternoon.

Mojave Owners, I would suggest you check yours out as well. If they aren't rusted yet, they might soon be, so keep an eye on it.

@JeepCares

Service is going to love you........lol

 

[ShadowsPapa]

I still say - send the bolts to me.......... I have received a batch of automotive parts and fasteners (bolts, nuts, washers, brackets) to plate and it would be so easy to work in some shock bolts from Jeeps with this batch of parts. I can do them in clear/blue, yellow or black zinc at this time.

 

[jac04]

Haven't had time to take the truck there during the week. Not even at 4K miles yet, so not even due for an oil change.

It's been a few months. Any updates?

 

[KB34]

It's been a few months. Any updates?

I’ve been busy working and moving halfway across the country. Haven’t bothered with it, if I have an issue I’ll bring it up but might as well kill the thread lol. Still would like to know what the screws purpose is but oh well.

 

[jac04]

... I refuse to accept anything but a replacement on a part that clearly did not pass the strict environmental validation requirements. ...

So I'm assuming the above no longer applies. Too bad, I was really looking forward to seeing if the dealer was actually going to replace all 4 shocks.

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