Trailhawk skid plate bolts - Jeep Renegade Forum
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post #1 of 10 (permalink) Old 08-14-2019, 01:54 PM Thread Starter
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Trailhawk skid plate bolts

My first two oil changes were done by the dealer (free of charge under the Jeep Wave program).

Yesterday I did the third one on my own. With out a lift, it was a challenge dealing with the skid plate.

The (4) larger 13mm bolts holding the skid plate were difficult to remove (almost as if they had been crossthreaded).

When I finished, and put the skid plate back on, one of the 13mm bolts would not tighten up fully. As if it is stripped. I don't think it's the bolt, but the threads (on the frame?) that it goes into. Any ideas on dealing with this?
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post #2 of 10 (permalink) Old 08-14-2019, 03:11 PM
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So by 13mm you mean 13mm head on 8mm bolt, right? I sheared the head off of one of mine when I tried to take it out. It was an outer front one. Those seem to rust and seize up. I bought a set of metric taps so I can chase the threads after I get the broken one out with an EX Out. I will replace them with some stainless ones, or at least zinc plated.
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post #3 of 10 (permalink) Old 08-14-2019, 03:33 PM Thread Starter
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So by 13mm you mean 13mm head on 8mm bolt, right? I sheared the head off of one of mine when I tried to take it out. It was an outer front one. Those seem to rust and seize up. I bought a set of metric taps so I can chase the threads after I get the broken one out with an EX Out. I will replace them with some stainless ones, or at least zinc plated.
Yes the bolt with the 13mm head, but the threading is the problem. It won't tighten up. Could not tell if it was on the bolt itself or the threads on the frame the it goes into. I'll pull it back out and check. I was tired when I was done.
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post #4 of 10 (permalink) Old 08-15-2019, 01:14 PM
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Chase the threads with a tap set.
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post #5 of 10 (permalink) Old 08-16-2019, 06:40 AM
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If the bolt spins as if it will not tighten, then chasing the threads will be unlikely to help. The tap will clean out fouled threads, but can't put missing threads back.
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post #6 of 10 (permalink) Old 08-17-2019, 09:20 AM Thread Starter
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If the bolt spins as if it will not tighten, then chasing the threads will be unlikely to help. The tap will clean out fouled threads, but can't put missing threads back.
That seems to be the case. It's one bolt out of 4 across the front.

Can I use a tap to make it bigger and use a larger diameter bolt?
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post #7 of 10 (permalink) Old 08-17-2019, 09:46 AM
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My problem at the dealer for my first two oils changes (Wave Program), bolts missing from the skid plate. BOTH TIMES.


That is why I do my own maintenance, unless it is a warranty repair. ...and then I'll go back and make sure it is right.
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post #8 of 10 (permalink) Old 08-17-2019, 03:43 PM
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That seems to be the case. It's one bolt out of 4 across the front.

Can I use a tap to make it bigger and use a larger diameter bolt?
I've done my own TH oil changes, but haven't stopped to look at the captive fastener for the skid plate (and I'm not crawling under there to look for you ). I'd bet that the threads are in some type of "rivnut". Do a google search if you don't know what a rivnut is. There may be some meat if you drill it out one metric size, but be prepared for there not to be any extra material. If it is a rivnut (or something similar) you may be able to drill it out and replace it with an off-the-shelf rivnut. Rivnut installation tools are specialized, but not very expensive.
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post #9 of 10 (permalink) Old 08-18-2019, 04:57 AM
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+1 it is a rivnut
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post #10 of 10 (permalink) Old Today, 10:11 PM
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Has anyone come up with a good oil filter relocation kit yet for the Trailhawks?
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