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Hrm it seems like the way they bolt the muffler is not intended to be removed unless the body is off. The hanger for it is in a spot you can’t really fit your hand. I’ve removed the cat with relative ease so I suppose I don’t need to pull the muffler though. Just wondering if anyone’s removed...

Yea I first noticed when I crawled under my truck to inspect it, I like to randomly try and move/shake things and I noticed that both my fronts were sliding around on the diff. Sounds like your situation was a little more dire though if they were whacking the halfshaft bolts. Definitely not fun...

The front top caliper bolts especially, those are very tight to squeeze a wrench into. I put blue on them and haven’t had issues yet. Where I have had issues is the actual entire assembly coming loose from the differential. I used red on those, whatever maintenance shop took them apart before...

Yea I was wondering more in terms of exhaust system back pressure in the long run. Other than that I don't really think there's a way to clean the old cat out.

Yep understood, lots of money for a tube though lol Kind of weird thinking about it however, I can't imagine our guys having issues getting out of dodge while in combat because a cat got plugged up, but that's my 2cents

So uh I guess while still on this topic, any thoughts about just welding a pipe in place of the cat? Given that a new one is $1400-$1800

That’s an interesting point, so you’d suggest using red or blue loctite on the halfshafts instead?

The rears are easier to get to but you need a special tool to retract the pistons. Only other way is to remove the calipers completely and retract them with channel locks in a vise. Don’t take the rear apart until you’ve got a plan to retract the pistons. Here’s the tool I used...

So I guess to add to the record here, this truck’s odo has 12k on it right now. Obviously can’t attest to the accuracy of that though. Could it possibly be from fording salty/nasty water and it finding a way in there to sit?

Holy sh$! It’s a completely different truck now I slid the cat back away from the down pipe and this thing hauls now. The turbo whistles like a beast and the temps stay lower, I got it up to 65mph in no time. No more black smoke plumes either, nice clean exhaust Good stuff guys thank you all!

Alright it looks like we are possibly leaning towards a plugged up cat. While driving under moderate load, I get smoke coming from the exhaust side of the turbo area and down pipe as if excess exhaust pressure is trying to escape but can’t. Turbo also got to temp very quick. Moving the...

I suppose it’s also possible a blown/leaky intake o-ring on the turbo could be leaking my boost? About to do some testing and see how things line up.

Oh just saw the edited message, alright yea that makes sense and sounds simpler than removing the converter off the bat. Will give it a go.

Temporarily removing it from the exhaust system in that case should let me test and rule it out then I suppose?

That spooling whine was actually the inertia of the 200A alternator spooling down, my non turbo does the same thing when revved high in neutral and released. I actually ran it without the filter in the first video, intake was wide open with no obstructions. I can give it a shot though to rule...

Further research and discussion seems to point to this being turbo related. Friend brought up the idea of the wastegate possibly being stuck. I was able to move it by hand with the truck off though. Going to try moving it around with the truck running tomorrow and seeing if the smoke level...

Another video: Engine peaked at 2250RPM at full throttle in 1st gear

Alright while this certainly looks cool, it ain’t right 😂 I tested it a bit more just now and it seems to be getting worse. Is it possible that the fuel adjustment inside the IP might’ve come loose and is increasing fuel by itself? Given the ridiculous smoke levels and full throttle only...

For what it’s worth, I changed the lift pump and filter a few months ago but it’s only had a few miles done on it. It’s been sitting most of the time. I just verified the fuel flow from the lift pump while cranking, fills up a cup pretty quick, no evidence of dirt / debris from the filter drain...

Heya all, hope everyone’s had a good Memorial Day weekend. I’m coming across an odd issue in an 1151 where after it’s warmed up, it just loses the will to move at any sort of pace. From cold I wasn’t able to get it over 50mph, then once fully warm it didn’t want to accelerate at all past 20...