Question about 2004 Mazda 6

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On neutral gear the engine run unevenly. Lot of vibration

Ha d an overheat problem which affeced the piston joint. Had to change them.

Now the engine is not running smoothly. Its noticeable when the engine is on neutal gear. There is lot of vibration

Thanks

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  • Anonymous Dec 27, 2008

    my 99 firebird overheated when the thermostat went bad and now the engine runs very ruff when in neutral and has alot of vibrating... it runs fine when in gear

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

Posted on Dec 16, 2008

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My Audi S3 2009 has had an increase in engine vibration and Revs by itself.


check the engine mounting for damages & transmission mounting.also check the mounting bolt for looseness and tight...

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Does idle rough in gear if so may have bad fuel injectors. not saying that it is not transmission or joints, need to make sure the engine is running properly first.

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Stuck in neutral


If you can select gears then it is not stuck in neutral. To be stuck in neutral means that you can only move the lever sideways and no where else. Now the problem is probably the clutch is in constant disengaged position This is from a hydraulic lock in the system from a faulty master cylinder/ jammed cable. As 4 gear is a straight through gear( Input shaft is connected directly to out put shaft) then the 2 causes for this --one not properly engaged and 2 loose or misaligned gear box bolts at the bell housing. So check hydraulics system/ cable and check that the gear box is not loose

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94 jeep grand cherokee front end vibration


Many things will cause vibrations, especially on 4WD trucks. Causes include: worn ball joints, worn tie rod ends, bent wheels, tires out of balance/shifted belt in tire, worn steering dampener, worn u-joints, worn CV joints, engine problems such as engine misfire, a bad fuel injector clogged fuel filter or injectors, worn ignition parts, etc. I suggest you apply the service brake in gear and give it a lot of throttle (power-brake)to determine if the engine is running smoothly or if it runs rough. Also, with the hood up, you can see the shaking if it occurs. If rough, check everything over and repair as necessary. If smooth, start checking ALL other vehicle systems and repair as necessary.

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2004 Dodge Dakota - vibration when accelerating from stop. Even happens when in neutral and I slowly accelerate.


if the vibration increases as you accelerate and change through the gears you could possibly have a universal joint on half shaft that is worn beyond its limits.If it only vibrates as a the motor increases the rpms it could be that your harmonic balancer this damaged all worn out.There is another possibility and that is that you have a damaged tyre that goes out of balance very quickly.
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Feb 19, 2012 | 2004 Dodge Dakota

1 Answer

When sitting at a red light my Mazda 3 idles real funny...vibrating almost sounding like a cats purr?


2006 Mazda 3


Applies to 2006 Mazda Mazda3:
Available engines
4 Cylinders 2.0L MFI DOHC
4 Cylinders 2.3L MFI DOHC


Could be a number of things - you're going to end up checking the entire car.

Off the top of my head:
a) exhaust component has rusted loose (usually catalytic converter heat shield). Any loose exhaust component (hanger/muffler, etc.) will vibrate at idle.
b) glove compartment door - loose hinge
c) motor mount - rubber part of metal/rubber mount vibrates loose & falls out.
d) transmission mount - ditto.

The Maintenance manual for your car says:

Clicking noise at idle or driving
--------------------------------------------
1 Inspect Main (Crankshaft) Bearing - Excessive Bearing Clearance.
1 Inspect Rod Bearing - Incorrect Rod or Main Bearing Clearances.
2 Inspect Rocker Arm - Worn or Incorrectly Adjusted Rocker Arm(s).
3 Inspect Piston Ring Set - Worn or Broken Piston Rings.
4 Inspect Piston - Worn, Damaged, or Faulty Piston.
5 Inspect Fuel Line Assembly - Fuel Line Leaking.
6 Inspect Hose Clamp - Loose or Missing Fuel Line Clamps.

Tapping noise at idle
------------------------------
1 Inspect Valve Lifter - Insufficient Oil Supply.
2 Inspect Fan Blade - Broken, Missing, or Faulty Fan Blade(s).
3 Inspect Oil Pump Screen - Clogged Oil Pump Screen.
4 Inspect Oil Pump Drive Gear - Damaged or Faulty Oil Pump Drive Gear.
5 Inspect Exhaust Valve(s) - Burned, Worn, or Sticking Exhaust Valves.
6 Inspect Oil(Crankcase)Capacity - Lifters Need Additional Lubrication.
7 Inspect Oil Filler Cap - Oil Filler Cap Damaged or Missing.
8 Inspect Oil Pump - Damaged or Faulty Oil Pump.
9 Inspect Oil Filter - Old or Clogged Oil Filter.
10 Inspect Oil FLow Check Valve - Damaged or Faulty Oil FLow Check Valve Caused Loss of Oil Pressure.

Vibration while Accelerating
-----------------------------------------
1 Inspect CV Half-Shaft (Remanufactured) CCT - Worn or Damaged CV Half-Shaft.

vibration while braking
--------------------------------
1 Inspect Brake Rotor - Warped or Uneven Brake Rotor Surface.

Vibration while driving - entire vehicle
-----------------------------------------------------
1 Inspect Brake Rotor Specs - Warped or Uneven Brake Rotor Surface.
2 Inspect Ball Joint-Lower - Worn, Damaged, or Faulty Ball Joint.
3 Inspect Ball Joint-UPPER - Worn, Damaged, or Faulty Ball Joint.
3 Inspect Wheel Bearing-Front - Worn, Dry or Damaged Wheel Bearing.
5 Inspect Tie Rod End - Worn or Damaged Tie Rod Ends.
6 Inspect Wheel Bearing-Rear - Worn, Dry or Damaged Wheel Bearing.
7 Inspect Wheel Hub Bearing - Worn, Dry or Damaged Wheel Hub Bearing.

Vibration in rear axle area while driving
-----------------------------------------
1 Inspect U-Joint - Loose, Worn, or Damaged U-Joint.
2 Inspect Driveshaft - Bent, Loose or Unbalanced Driveshaft.
4 Inspect Differential Drive Pinion - Worn, Damaged or Broken Pinion Teeth.
4 Inspect Wheel Bearing-Rear - Worn, Dry or Damaged Wheel Bearing.
5 Inspect Pinion Bearing - Worn or Damaged Pinion Bearings or Yolk Shaft.


Vibration in steering wheel while driving
---------------------------------------------------------
1 Inspect Wheel Bearing-Rear - Worn, Dry or Damaged Wheel Bearing.

Vibration in tire/wheel area while driving
------------------------------------------
1 Inspect Wheel Bearing-Front - Incorrectly Tightened or Installed Wheel Bearing.

Vibration under vehicle while driving
---------------------------------------------------
1 Inspect U-Joint - Loose, Worn, or Damaged U-Joint.
2 Inspect Muffler - Damaged or Burned Out Muffler.

Vibration in rear wheeel area while driving
------------------------------------------------------------
1 Inspect Wheel Bearing-Rear - Worn, Dry or Damaged Wheel Bearing.

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1 Answer

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I would suspect a mount. Either motor or trans. Also check lateral mount on top of motor to firewall. Good luck and have a great day.

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1 Answer

Engine vibrates


i had same problem check all vacume hoses front and rear of engine whene u find leak u will notice a large difference just by putting finger over it and then replace or repair hose. good luck hope it works for ya.

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Sounds a lot like a wheel balance problem, Does vibration go away over 55? In checking driveshaft joints...If you looked at them with the vehicle in park with the wheels on the ground, the shaft is "loaded" and cannot be correctly checked. To do this properly, vehicle should be in neutral with both rear wheels off the ground. Sometimes a joint can appear to be tight but still be bad. Check for traces of powdered rust around the rubber boots right where the end caps meet the cross on the inside. Any rust there indicates lack of grease and the likelyhood that the joint is frozen.
Check both balance and joints. Good luck.
Don't forget to rate my answer after you find the problem.

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2 Answers

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Start by inspecting your tires. Look for uneven tread ware, tire separation (a bubble) on the inside or outside. Then change the fluid in your front and rear differential. This will tell you if you have a gear problem. Change the fluid in your transfer case also for indication of a gear problem.

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