Question about Dodge Charger

8 Answers

This is a 1974 charger,360 ,4bbl,auto-problem is engine vibration. engine is running good, butvibrates almost like a miss,noticeable even in neutral, but more noticeable as the rpms are higher.when driving, seems not as bad as you accellerate,but after about 40 mph, give or take,is very noticeable, almost like a rhythmic grinding feel to it. when driving at steady slower speed, can feel hesitation,seems sporadic. have been told it was harmonic balancer-seems reosonable. but others say its worse-an "internal matter". any info or opinions or advice would be greatly appreciated. thanks, rk

Posted by on

  • rick_kid62 May 09, 2009

    its definitely engine related-pulleys,fan have slight shake to them-even in neutral. at higher speeds, almost sounds like a miss....normal driving its not as noticeable, moreso during idling and high acceleration. normal driving is when i get that little hesitation-like timing is off, but its not. is there any half way simple way to tell if harmonic balancer is bad? cant really afford to "buy and try" parts till i get it right. any advice appreciated. rk

  • rick_kid62 May 11, 2009

    the idle is very rough.acceleration is pretty smooth , though.but when you let off the throttle-shaky.

×

8 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 253 Answers

Harmonic balancers can cause heavy vibrations also motor mounts (which think it is. Chrysler was famous for it in those years) oil will leak down from the valve covers and soften the rubber and the torque from the engine will snap the mounts and shift the engine. Easy way to check the mounts is to open the hood, start the engine and put into drive. Hold your foot firmly on the brake pedal and slowly give it the gas. If the mount is broken the engine will raise up on the left side. Then put the car in reverse and do the same thing, if the other mount is broken the engine will raise on the right side. If the balancer and mounts are OK then you might have a cracked flywheel. To check remove the retaining bolts on the transmission torque converter push the converter away from the flywheel and start engine if vibration is gone the flywheel is cracked.

Posted on Feb 17, 2013

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 326 Answers

The harmonic balancers entire job is to keep the engine at a perfect idle at any speed.
as the engine vibrates due to faulty harmonic balancer.
if it misfirs and vibrates together then its fuel pump problem.if you are getting white or black smoke at the engine with vibrating that means its crank shaft sensor problem .
but nothing like that then its harmonic balancer for sure.check out properly.

thanks,
pleaske do rate the solution.keep updated.

Posted on May 15, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,865 Answers

It is unlikely that your problem is caused by internal parts, if anything broke internally, you would know right away. The harmonic balancer does bolt to the crankshaft, and therefore could be a source of vibration.

The best way to know is to take the belts off, and start the engine and rev it a little bit, if you still have vibration, then pull the balancer off, and again start the engine and rev it a little bit.

Caution: The water pump requires a belt to operate, and therefore do not prolong these tests, keep an eye on the engine temp.

You might want to look at your spark plugs and wires. A grounded wire will cause the engine to run rough.Pull the plugs and check for cracks or shorts. replace them if you can afford it. Its difficult to see a bad wire, if you can afford to replace them, do it.

Posted on May 12, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 413 Answers

The power impulses of an engine result in torsional vibration in the crankshaft. A vibration damper mounted on the front of the crankshaft controls this vibration . If this torsional vibration were not controlled, the crankshaft might actually break at certain speeds. Most types of vibration dampers resemble a miniature clutch. A friction facing is mounted between the hub face and a small damper flywheel. The damper flywheel is mounted on the hub face with bolts that go through rubber cones in the flywheel. These cones permit limited circumferential movement between the crankshaft and damper flywheel. That reduces the effects of the torsional vibration in the crankshaft. Several other types of vibration dampers are used;however, they all operate in essentially the same way


Posted on May 11, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,197 Answers

  1. Inspect your engine while it's running. Listen for any sucking or hissing sounds, which might indicate that an air hose or vacuum hose is loose or disconnected. If you find loose or disconnected hoses, reattach them and see if that solves your problem.
  2. Step 2 Listen to see if your engine is missing. An engine that is missing can cause a vibration because one or more of the cylinders are not firing. If you believe that you detect a miss from the engine, pull out a few spark plugs and look at their condition. If they are very dirty and worn, change them and see if this stops your engine from missing.
  3. Step 3 Inspect your ignition wires. See if they are cracked from the heat of the engine. Make sure that they are tightly connected to the spark plugs and to the distributor. A good way to see if they are defective is to put the car in gear, and while your foot is mashing the brake, rev the car and see if it starts missing. This is a good way to put a "load" on the engine to see if the wires hold up.
  4. Step 4 Check from underneath the engine and look at your engine mounts. These are the thick rubber blocks that are between the chassis and the engine. Sometimes they are filled with hydraulic liquid. If so, make sure it isn't leaking. Check your mounts by inserting a crowbar between the engine and the chassis. Put pressure on it, moving the engine away from the chassis. If you see that the motor mounts are cracked or damaged, you may want to take your vehicle to an automotive technician to have your motor mounts replaced.
  5. Step 5 Check your harmonic balancer. Harmonic vibrations can lead to a variety of mechanical failures. Harmonic vibrations are specific and usually have a repeated type of vibration which ebbs and rises. One indication of your harmonic balancer being worn is if you detect a leak from your front main seal. If the above steps don't fix your problem, take your car to a professional and have them check the harmonic balancer.
jQuery('.article ol .image').each(function(i,e){ var $this = jQuery(this); $this.find('img').error(function(){ jQuery(this).remove(); $this.remove(); }); }); Tips & Warnings
  • You may want to check your engine in a dark place to see if your ignition wires are arching. If your wires are bad, you can see electricity actually leaping from one wire to the other.
  • There can be other problems that can cause vibrations while the automobile is moving. These could be problems in the chassis or drive train that could be too complicated and numerous to mention here. If you are only feeling a vibration when the car is moving, the problem probably is not coming from your engine.
  • Be extremely careful when are under the hood when your engine is running. Keep your arms away from the fan blades.

    the things u wud require wud include 
    • A flashlight
    • Spark plug wrench
    • Crowbar






    good luck thank you have a nice day

Posted on May 11, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 123 Answers

1. Inspect your engine while it's running. Listen for any sucking or hissing sounds, which might indicate that an air hose or vacuum hose is loose or disconnected. If you find loose or disconnected hoses, reattach them and see if that solves your problem.
2.
Listen to see if your engine is missing. An engine that is missing can cause a vibration because one or more of the cylinders are not firing. If you believe that you detect a miss from the engine, pull out a few spark plugs and look at their condition. If they are very dirty and worn, change them and see if this stops your engine from missing
3.
Inspect your ignition wires. See if they are cracked from the heat of the engine. Make sure that they are tightly connected to the spark plugs and to the distributor. A good way to see if they are defective is to put the car in gear, and while your foot is mashing the brake, rev the car and see if it starts missing. This is a good way to put a "load" on the engine to see if the wires hold up.
4.
Check from underneath the engine and look at your engine mounts. These are the thick rubber blocks that are between the chassis and the engine. Sometimes they are filled with hydraulic liquid. If so, make sure it isn't leaking. Check your mounts by inserting a crowbar between the engine and the chassis. Put pressure on it, moving the engine away from the chassis. If you see that the motor mounts are cracked or damaged, you may want to take your vehicle to an automotive technician to have your motor mounts replaced
5.
Check your harmonic balancer. Harmonic vibrations can lead to a variety of mechanical failures. Harmonic vibrations are specific and usually have a repeated type of vibration which ebbs and rises. One indication of your harmonic balancer being worn is if you detect a leak from your front main seal. If the above steps don't fix your problem, take your car to a professional and have them check the harmonic balancer.

Posted on May 10, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 11,896 Answers

Either you have a warped pulley, or your vibration damper may have low fluid.

Posted on May 09, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 3,917 Answers

Hi,

vibrations over 55 mph are usually balance related (tire balance, drive shaft balance, motors)

vibrations at lower speeds are usually mechanical (bent rims, out of round tires, bad tie rods)
Therefore the suggestion for checking the harmonic balancer is perfect in your case.

Thanks

Posted on May 09, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Motor vibration in netreul engine not missing


IF That is true, then the engine mounts are bad
but all G16s shake, all 4 cyl, do.. by Design.
(only exceptions are Mitsubishi with the Silent shaft counter shaft)
i bet it is misfire.
most do , not serviced right.

Mar 26, 2014 | 1996 Geo Tracker 2 Door

1 Answer

The car vibrates when in drive while at a stop. What would cause this ?


Vibration at idle brings to mind a few suspects:

transmission mount(s) broken/missing
transmission internally worn
motor mount(s) broken/missing

(1) transmission internally worn or transmission mount broken/missing - test this by shifting into neutral at the next stop light. If the vibration disappears when you disengage the transmission, then the transmission is the source of the vibration. You'll have to inspect the transmission mounts - if they're ok, then the transmission is internally worn and can no longer smoothly "slip" while idling in drive.
(2) motor mount broken/missing - also test this by shifting into neutral at the next stop light. If the vibration persists, then the transmission is exonerated, and the vibration is coming from (under) the engine. The rubber part of motor mounts commonly crack/break and or pop out and are lost.

A photo of the front motor mount for the 2003 Dodge Neon:


10_18_2011_3_35_36_am.jpeg

Oct 15, 2011 | 2003 Dodge Neon

1 Answer

I have motor vibration. My mechanic at I have a leak around says the manifold. cant that be true.


Yes it can be the problem. If you are pulling a vacuum into the intake manifold, you will have an improper mixture of fuel to air. A lot of other things can cause an engine to "miss" which causes the engine to vibrate. A perfectly good running engine can vibrate if you have a broken motor mount for example. You could also have faulty spark plug wires, even a blown head gasket. You have to start somewhere. You need a mechanic you can trust, don't be shy, ask him what else can cause your engine to vibrate. Hopefully, he will have a scanner to see what your onboard computer is showing to be wrong. If you are near an autozone or advance auto parts store they will hook the scanner up to your car for free to read what your computer is showing to be wrong. If it shows a code for "engine lean" then that would support the idea that you have a vacuum leak. Hope that helps.

Oct 17, 2010 | 1995 Buick Riviera

1 Answer

Wondering why i pull off at a light and its ALOT of vibration, when it's in neutral it doesn't vibrate. But when it's in drive it vibrates. What is the problem?


Good Evening, I can certainly understand your problem. I have seen this a number of times. The first thing to have checked out is your motor mounts (as long as your engine is running smooth I would not say a misfire) the mounts get a good amount of wear and tear and what happens in drive it relies on those mounts to help cushion the movement of the engine. I hope this of some help.
Thanks,
Joey

Sep 10, 2010 | 2001 Mitsubishi Galant

1 Answer

My 1995 Buick Riveria Supercharge- the other day my engine started to make a metallic sound. I took it to a local auto shop and they replaced the harmonic balancer. When I picked up the car, the mettallic...


I don't think so.They seem to be on top of the situation more than the dealer for 1 thing.For vibration,I don't really think a compression test would show anything.That would be more of a loss of power issue.If that shop did not think the other 2 mounts were bad enough to require replacement,the answer is probably somewhere else.If this is an automatic,when do you put it in neutral?At lights or long stops?I would like to know the answer for that please.It could just be the age of the car and normal wear and tear is causing it but if the vibration is bad enough to post here,there could be something.I have a 1995 Escort wagon with 135k miles and it shakes a little bit.Anyhow,just comment here and I will get an aoto link back here to see what you said.
Thanks,Greg

Aug 28, 2010 | 1995 Buick Riviera

1 Answer

Bad motor mounts? 1999 toyota sienna


The vibration may not be the mounts but the motor missing. What the motor with the hood open. Have your driver put the unit in gear and see how much things move touch the engine and feel the unit does the engine run smothly or does it need a tune up or vacume leak fixed. The exhaust system may be touching the car somewhere and it's transferring noise and vibration. Air conditioning lines and fuel lines can do it too. Is the check engine light on? Mixture problems can make the engine chuggle and vibrate more than normal. oxagen sensers can cause mixture ans can temperture senser lies. Even an opened too much therostate can make the system think that its cold and turn up the fuel till the motor shakes. fouling plugs and causing fuel ecomony problems and low performance problems.

Jul 05, 2010 | 2001 Toyota Sienna

2 Answers

1997 s10 2 wheel drive truck. 4.3L v6 makes a loud noise as the car accelerates fast or under load. When running 55 I can release the gas pedal and the noise is not audible. I can put the truck in neutral...


Your noise sounds like it is power train related,If you have eliminated the engine,Since it doesn't make the noise while moving and in neutral.
It sounds like a universal joint in the drive shaft.Do you notice a vibration
along with the noise?

Nov 17, 2009 | 1997 Chevrolet S-10 Pickup

1 Answer

93 Magna Auto vibration at idle


Check your engine and transmission mounts .

Jun 26, 2009 | Mitsubishi Sigma Cars & Trucks

1 Answer

On neutral gear the engine run unevenly. Lot of vibration


if they took the motor out to fix the joints then it sounds like they messed up the engine mounts.

Dec 16, 2008 | 2004 Mazda 6

2 Answers

Vibrating in neutral


need to be more specific,is the car manual or auto,give details.

Sep 19, 2008 | 2003 Renault 181

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

409 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dodge Experts

yadayada
yadayada

Level 3 Expert

74945 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7697 Answers

Are you a Dodge Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...