Take the engine belts off one at a time and start the engine if the noise goes away then you can isolate the problem by what the belt turns and after the belts are off and your noise is still there you may have an internal problem with your engine
Thats Correct
Best answer
Take a long screwdriver and place the handle against your ear, put the point on different places where the noise comes from. That way you can pin point the noise
Check your harmonic balancer also
Great diagnostic tip, Dani.....From my experience with these small Nissan pickup trucks, it's most likely the bearings going out in the water pump.
You dont list the motor option but it sounds like the harmonic balancer has failed ( two section pulley on the crankshaft filled with rubber) both flanges should be level.Also dose the noise speed up when youincrease the rev range ? Allan
First hand experience speaking here. I would bet Allan is 100% on point. Had the same noise coming from the front of the engine and found that the rubber pieces broke on the harmonic balance which is boltes with a key way onto the front of the crank shaft. It's what all the other utility belts get their rotation motion from. With the age of your vehicle, this is very likely the problem. Usually a DIY job if you can source a pulley puller and what I believe is either a 27 or 29mm socket for the bolt attaching it to the crank. I'd you're patient, I could be off and replaced within an hour.
Spray the belts thoroughly with a belt conditioner and see if the noise stops. I had a belt on my old Plymouth making horrible noises. A friend suggested belt conditioner and voila, the noise was gone. I sure hope it is as easy as that.
If it is clanking, it sounds to me like a worn sway bar link--or both. I had that in my '02 Grand Caravan. The sound was coming from the front and it was a clanking sound.
Timing chain tensioner will slap on the cover. Easy job but requires automotive skills.
Loose belt will make a clanking sound sometimes so check the belts for tightness WITH THE ENGINE OFF!
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Friend I am going to add my advice from 50 years of mechanic work, I will say this much do not take anything apart on the vehicle if you know some one that works at a garage or does mechanic work as a hobbie ask them to listen to the sound and maybe they can tell you something do not ask them to work on it unless they volunteer. If you feel capable of your own ablities touse these a hose or a stethoscope, but do not use anything hard it can get caught and hurt you o r do more damage to the vehicle locate where th e sound is coming from and from there you will solve your problem . Bless You and God Bless You
Hi, Had that noise on my 1987 Nissan pickup. The idler pulley
Replace that pulley. It also could be the water pump and fan. Hope that helps
The first thing your mechanic would do, is to spray WD40 on the belts. If they are old and shiny they do give off a metallic clanking sound. If the clanking stops, he would fit new belts. If the sound remains, next, he would take the belts off and check the water pump shaft for looseness. Check the harmonic balancer on the crank pulley to see if it has separated. Look for broken mount brackets for the alternator, power steering pump, etc. He will know if the sound is external to the engine, as those sounds differ from internal noises. The left hand engine mount may have separated and be metal to metal. One of the best locating ideas is to use a few feet of garden hose with one end in the neck of a plastic Coke bottle which has had the bottom cut off. Pointing the hose end at the area where the noise seems to come from and listening to the sound coming from the coke bottle will tell a mechanic pretty much what he wants to know.
You must locate the area that the noise is coming from, First don't use a pipe you may have it jamed into the side of your head, use a two foot piece of old garden hose it won't hurt quiet as much. If you are listing to something thats not moving put the end of the hose directly on it, if its moving i.e. fan be careful. You should be able to chase the gremlin down and kill it.
Brad
Idler pulley put a new one on it
This guy is probably 99% correct.
Harmonic balancer
Get your water pump checked if your vehicle is running smooth then it won't be the balancer
forward to [email protected]. My mechanic and hubby.
First make sure that all the fan and belt pulleys are tight. Then check for the fan blades are not bent. Then check your water pump, a rare occurrence sometimes are the impellers break off the water pump and rattles around in the pump housing. The last thing would be to check the balancer.
Take out the fan belts and run the egine, when the engine run smooth i'm sure the problem is bering, maybe water pump, or belt tensioner.
could be timing chain
Timing chain or loose pulley nut needs tongue!
Disconnect the fan belt, start the engine and see if it goes away, if not, stop the engine, put the keys in your pocket rotate each additional component by hand e.i. (alt, power steering, water pump/fan blade etc.) and see if there's any rough restriction(s) or noise. "There you may find your culprit."
I agree with checking all pulleys 1st specially tensioner pulley and if still hear the noise go head with water pump...
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The ka24 in that truck has a bad issue with the timing chain guide rattling. Pull the valve cover and look down where the chain goes and you can see if the guide is loose.
Timing chain loose,guide tensioner worn
I did not read everyone's comments. but it would be wise to change the steering stops on the front ends. Sometimes the original sterring stops come in nhard plastic that tends to wear away with time. Replace it with the metals ones and the problem may be solved.
Before you anything else, if your pickup has an AC installed, better
check your fan. AC fan and motor usually cause an unusual noise
that will annoy you. If you check your AC fan, try to touch and move
forward and backward. The fan itself should not move loosely and
it should stay firm. If it does move, you have a bad AC fan MOTOR.
If AC is not involve, have a mechanic check your tie rods end.
Occasionally, oil or grease inside tie rod or ball joints dried up and
it may cause clanking sound as well. Other thing to check is the
radiator fan. There may be loose particles hang touching the fan
that may cause the clanking sound. As long as your engine runs
smoothly, chain would be the last thing to check. If you suspected
the water pump, then this should be simple to check. Once parked
for quite a while and the engine gets cold, open the radiator cap and
see if you loose too much water. That's the sign of bad water pump
that makes the clanking sound. Hope this ideas helps
Check your fan clutch is if its loose, if its not loose than you need a water pump, water pump damage it has a flange inside the pump, it has a small spring.
Low oil or bent fan or loose fan shroud also cause ticking. Nissan engines love oil and if its low it will tick insanely till its topped off with more oil.
Hi Mo,
if I was you I would just pop it in to my local garage and ask them to diagnose the problem,to save yourself untold hassles,i would surely not charge you to this, if your local garage is an honest person,he should not either.
good luck
The starter is not good. Check the pinion gear on the starter
If its just doing it as its turning over , check the starter they can make a bad sound when brushes are worn down causing it to drag
I suggest you take the fan belt off. I would fist hold the crank pulley and try to rotate it back and forth if it moves the inspect it for mounting rubber to be worn. If it seems to be tight then check the fan clutch and water pump for movement up and down. as the other pulleys just turn them if they are bad you should hear a noise or feel a roughness when turning. They did have a problem with the timing chain guides wearing and the chain making a noise. If you can not find the problem before just changing parts I suggest you find a trust worthy repair shop and have the check it for you.
Does that have the KA24DE motor? Probably the idler pulley. Makes a hell of a noise but easy fix.
It's most likely the water pump, they are designed to make that sort of noise as they fail. You should also look for signs of a minor coolant leak to include residue near the water pump and down the front of the engine block. You will likely also smell coolant.
Engine mounts? Those are on the side, so it's doubtful to be causing noise at the front of the engine. Pulleys, if loose or going - you'd likely see some wobble, though if it's the water pump you may see some wobbling there. A short video clip of the sound and front of the engine would be extremely helpful in a situation like this.
Did you ever find the source of the noise?
It's possibly your idle pulley bearing is gone,to confirm it remove the v belts and run the engine. If no noise,replace idle pulley or idle pulley bearing.
My guess is your timing chain guides are worn out so each link of the chain is rubbing against metal now and possibly the chain is slapping nearby metal it isn't supposed to come into contact with. The guides are made of plastic over metal that experiences continuous rubbing by the chain when the engine is running. I think its time for a timing chain and chain guide replacement. May as well change the water pump was well if it has to be removed to replace the chain, guides, and chain tensioner. Do not put this off.
With everybody being ill over the place with their suggestions, go get a stethoscope from the auto parts store Put the ear pieces in your ears and touch the other end to various parts of the engine. BE SURE TO KEEP THE STETHOSCOPE AWAY FROM MOVING PARTS. It will become very clear where the problem is. Once you locate that, you will narrow down all of these suggestions. Don't waste money guessing.
Check to see if the fan blade is rubbing on the fan shroud.
Hope this helps.
Did this help solve the problem?
I agree it might be the fan rubbing. If the fan is metal and bent or the fan shroud is loose if its plastic. I wouldnt get too worried about engine problems. Also if the oil is low nissan engines tick..faster tick with higher rpm. Until really high rpm. The tick goes away and is periodic. Always look for a simple solution first. Before diving right in. Timing chains and waterpumps and stuff are alittle beyond the scope of the average do it yourselfer and can cost an engine if not done properly. Check oil and for fan fan rubbing. Cheers!!
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The problem (by what you're telling us), sounds like it is your Harmonic Balance Pulley. This pulley is at the most center mas of the front of your engine. This Pulley has a special key (Woodruff Key) that can sometimes wear down and loosen causing the Harmonic Balance Pulley to shake at low speeds or when the car is in idle mode. The most usual remedy for this is, to replace the Woodruff Key, as long as the valley on the shaft will accept a new key. Sometimes the valley tends to widen out a bit if left too long without attention.
Idler pulley ? Loud clanking ? Since when.
Use a broom stick one end to your ear the other on various parts on your motor until you hopefully find the source of the noise
I had the same problem with an old ford essex motor, when i started it and at idle it sounded as if someone was clobbering the block at the front with a hammer, until i tightened the center bolt on the front c/shaft pulley and the noise dissapeared. On stripping said pulley i fount that the woodruff key had worn the key way on the pulley, at idle and low rpm it made a terrible noise, but under load it was silent..a good second hand pulley and a new center bolt sorted the prob.. hope this helps.
I go with @BobGiesen, I do not think it is the timing belt, if it was stretched then your vehicle would be out of time and missing.
It could be a number of things and until you listen with a stethoscope you may not fine it. It could be the fan clutch, the idler pulley or a number of different items. It could be just a loose piece of metal clanking.
Too many options and not enough info.
Go to a parts store and pick up a stethoscope to know exactly where the sound is coming.
I have a 1996 Hardbody -w- a 2.4 L 4CYL engine, when this happened to me I found the timing chain was stretched & "slapping" the inside of the cover. The tensioner wears out and the chain stretches, both caused my problem.
If you can hear the sound while still parked, take a piece of pipe and with one end to your ear you can try to find the origin of the sound with the other end. This may help to find the problem quicker.
Remove the fan belt and spin the fan by hand, it should spin smoothly with llittle effort. If not you have found the problem
Check that the fan isn't hitting the shroud; check for play in the fan pulley by wiggling the tip of the fan blade. Remove the accessory drive belt(s) to see if the noise goes away.
I had a 91 also the water pump is so small it don"t take much for if to operate your over heating or losing water make sure the clutch fan is working when the engine is cool or at operating temp the fan clutch partially disengages. But remember the water pump is driven by a belt and pulley connected to the crankshaft check the pulley for damage take baby steps check the idler pulley at the alternator
Most like it’s going to be the catalytic converter
JERRY G.: IT'S YOUR TIMING CHAIN. A LINK IN THE CHAIN HAS SEPARATED, AND IS FLAPPING AGAINST THE INSIDE OF THE TIMING CASE COVER. YOU MUST PULL THE COVER OFF MY FRIEND.
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This should do it unless you're in California, but I have that on too if you need it.
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Ignition switch or ground to the starter relay.
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hi you will need type API/ACEA SG/A2-96 viscosity 20w50 hope this helps
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Make sure that the clutch fan is not hitting the shroud
Take the belts off and see if the noise goes away. If it don't it could be timing chain noise. Or worse. With the belts off you should be able to turn everything with your hand and find the problem
Remove belt and turn water pump, alternator and every other tensioner you find there to know where the fault is from
Sounds like a stretched timing chain what you're hearing is the chain slapping against the inside of the case cover will probably need new timing chain, gears and chain tensioner is pretty common on a high mileage Nissan motor of that era
Look for a loose bolt touching a pulley, alsI check crankshaft balancer to make sure it's not broke anywhere before you make the decision for a new trimming chain. Always check simple things first.
Very possibly the exhaust is loose
Check the front crank pul as the break the rubber in between did integrate moist likely that's the probim as u say the vecull adel smooth
I have a 97 and I had a stationary bearing . Meaning it is on a bracket of its own . Just a pully an a bearing it locked up but before it did it was rattling.
Hi best way begin by removing the drive belts completely. And start the engine don't let it run long if the noise is still there it's coming from your engine. You will have your answer Sometimes broken alternator brackets make a noise like engine is knocking. Hope the test helps
I would look at the timing chain slide guides I had an 88 that did that with the kaz24 engine
I have a 1990 v6 b21 if I was you I will start with removing all the drive belts and the started the car and see witch one will make the noise. And if is the water pump the you should change the timing belt too since the water pump is behind it
I'm agreeing with the timing chain idea.
I agree wuth checking all pulleys 1st starting with tensioner pulley if the noise still there then go head with water pump procedure good luck...
First of all does it make the noise when the engine is running but in park? If so, check your harmonic balancer and pulley that bolts to it. If the bolts are missing or loose it will make some pretty good clanking. If it only does it when your moving and hitting bumps, then could be several things. Of your vehicle has stabilizer bar links, when they are worn they can make the front end sound like somethings about to fall off, upper and lower control arm bushing can too and a bad shock or strut can make pretty good noise too.
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