hi my 2000 jeep cherokee recently started making a loud knock noise after attempting to pass a vehicle on the interstate...after that no gauges changed but the motor was making a loud knock im not sure wat it is it increases with rpm but on the down side of the rpms (returning to idle) the knock stops this is my dd and i need it for work and school please help me!?

 

sounds like your ganna need a rebuild or new motor

 

are you sure its comming from the engine compartment?

 

were you low on oil? funny it started while passing unless you were really low and some bearings got starved.

 

no i checked the oil as soon as i herd the noise well within the safe limit also the motor has 190000+ on it so if i need a motor ill just sell it

 

woah, lots of miles but no reason for hte knock unless something was messed up to start with. was oil pressure always good previously and is it now? start the engine and pull a plug wire from one plug at a time and see if you can find where its knocking. if its an engine knock, that is

 

okay my oil pressure was always around 40 and i can pull plug wires because i have a coil pack LOL i really need help ijust got fired from my job because i cant get there..

 

it knocks all the time? like a solid bam bam bam or just a tap tap tap? have you changed the oil lately? maybe you can put some of that oil additive that makes your oil thicker and make it go away? or make it light enough to still drive with no trouble

can you make a recording of the sound?

 

i can probably record the sound if my cell phone has a recorder but how would i post it here

 

What kind of fuel are you putting in it? Try to describe the noise better too. Check your front driveshaft too. With that kind of mileage, if you did not replace U-Joints and stuff it may be something that simple.

Sorry about your job btw that sucks dude, gotta love our Jeeps, good luck!

 

haha yeah love the jeep that why im mad the noise is not in the front end just did all new u joints brakes etc took out front drive shaft cause it was shot...it is a knocking noise that coordinates with a knocking feeling on bothe the valve cover and the block idk if its because of the noise or it was always there? never touched my engone wile running before

 

Either sludge buildup in the oil pump or a spun bearing. Just my 2 cents.

 

you can put the sound into photobucket and load it as a video. if you can feel it knocking when you touch the engine its probably going to be new engine time, which for you translates to new jeep time

where do you live? probably could recoupe some money towards another by selling to someone who has an engine lying around. there is an engine here for 350 out of a 94

 

im in pa kbb has it valued in poor condition with my milage at 3250 id sell for 2000

 

are either of these hard/expensive