I've got 190K miles on my Jeep. No significant engine problems in the 10+ years I've had it.
But there is a knocking noise coming from underneath. It's not too loud when idle, but gets louder and accelerates as I accelerate. It still runs smooth and feel nothing out of the ordinary. I'm not very knowledgeable when it comes to "under the hood" stuff. The guy at NTB without looking at it said it sounds like a rod knock in the engine. So basically, he said it needs a new engine. My girlfriend's father who is a mechanic is looking at it next week and says it could be a rod, but it doesn't sound consistent with a rod knock and it has him somewhat stumped. Keeping my fingers crossed it's not the engine. Read a couple of things that said it could be something in the transmission. Just trying to research what it could possibly be when for when we get in there. Thanks for any help.
Could be your crank bearings are worn out. Anything in the lower end should be easily heard through the oil pan if you give a listen. Use the screwdriver trick* to isolate the location of the noise and that may narrow things down.
* The screwdriver trick is where you take a larger size screwdriver, hold the handle against your ear, and use the tip to probe around the engine compartment for the noise. It amplifies surprisingly well and can really help locate a problem noise. Just be careful and don't get your head, fingers, or the screwdriver mixed up in any of the moving parts.
Thanks! Doing the screwdriver trick is actually what got us thinking that it wasn't a bad rod. I just found a video of a Jeep running on bad crank bearings. Sounded pretty similar. No video of it accelerating though. Thanks!
Ok. So 2 great replies (thank you KLboxer and uberxj92). So when first researching engine replacement, i was looking at a cost of roughly $3000-$5000. Does anyone know would it cost to replace those bearings? I know I'm going to spend a good amount on a 13 year old with almost 200K miles, but like i said before, just doing the research.
Titan engines in ocala Florida. Great strokers. My family shop Is a machine shop. We get $2000 for full rebuild. It depends on where you live the prices. But you can get the stroker motors for same price as most rebuilds and crates.