Question about Mazda MX

1 Answer

Drivetrain vibration Ever since I've owned my 240sx, there has been an annoying vibration, especially at lower (2000-3000) rpm in the higher gears, that seems to rumble the whole car slightly. This car has three universal joints in the driveshaft, then 4 cv joints total in the two halfshafts. I bought it used with 115k miles and now it has 130k. The car has never been wrecked. It's not in the wheels or tires, I've replaced them. It's not a big shake, more of a sound. If you have ever driven a car with an aftermarket sunroof with all the windows closed and heard that shuddering sound this is very much like that. Lower rpm (NOT lugging) and higher gears seem to make the vibration worse. If I just coast it is very smooth. If I rev the engine, it is smooth. But when I put it into gear and apply power, there's the shudder. I've also replaced the struts/shocks. Didn't expect this to help, as the problem occurs when the drivetrain is stressed. I've even had the hood off and driven the car to see if the engine is wiggling around, ie- loose motor/transmission mounts. Not the case. It's difficult to isolate but I think it's coming from the middle/rear of car.

Posted by on

Ad

1 Answer

  • 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.

    Renaissance:

    An user who is expert in 3 categories / brands.

  • Mazda Master
  • 545 Answers

Try your drive shaft common problem for 240sx

Posted on Jun 03, 2009

Ad

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Bad vibration when exceleration under load. more noticable lower gears .lower rpm


Could be many possible things, Especially threw the different models and years. Year make and model please.

Dec 25, 2015 | Cars & Trucks

1 Answer

I have a 2001 VOLVO S80 2.9 Very slow pick up and engine vibrates


is the transmission slipping?electronic controlled transmissions go into fail safe mode starting out in a higher gear

Apr 27, 2012 | Cars & Trucks

1 Answer

Between 2300-2800rpm viberation thro body drive feels course


You may have bad baffles in the Exhaust muffler or the Catalytic Converters. Also some Manufacturers put Tuning weights on Exhaust pipes. Since the problem seems to be isolated to engine RPM, you have eliminated many of the other possibilities in the Drivetrain by your description.

If this would happen to be a Ford V-8 with Cam Phasers, they can get out of sync and cause the engine to vibrate. Check your Vibration Damper bolt as a loose pulley can vibrate.

Jan 15, 2012 | Cars & Trucks

1 Answer

REPEATLY worn out carrier bearing on my 2001 GMC Sonoma extended cab ( 4.3 , 4speed auto 2wd) what could be the cause of this even after I've had it rebalanced?


  • If the bearing fails and seizes up, the rubber will be torn away from the bearing. The seized bearing can tear away the rubber mount that supports the outside of it allowing the bearing to rotate with the driveshaft. This allows the driveshaft to wobble up and down causing a vibration.
  • The rubber can also deteriorate due to age or contamination with oil. The driveshaft will operate at the wrong angle and vibration or noise will result. The vibration occurs most often during hard acceleration.
  • A worn center support bearing can cause a whining sound that varies with vehicle speed. The noise is constant in pitch, rather than changing or intermittent like U-joint noise.
  • If the truck has been raised , the alignment of the drive shaft will also change, A damaged driveshaft can exhibit a variety of symptoms. A clunk that is heard when the transmission is shifted into gear is the most obvious. You can also encounter unusual noise, roughness, or vibration.
    NOTE The engine, torque converter and driveshaft change in frequency as rpm changes. A rebuilt torque converter is often the cause of a vibration that is rpm-related.

    To help differentiate a potential drivetrain problem from other common sources of noise or vibration, it is important to note the speed and driving conditions at which the problem occurs. Unfortunately, it is often difficult to accurately pinpoint drivetrain problems with only a road test. Expand the undercar investigation by putting the vehicle up on the lift, where it is possible to get a good view of what is going on underneath.

    • Check the companion flange, carrier bearing, pinion shaft seal, and pinion bearing, transmission's extension housing seal and bushing, and the u-joints.
    • Check the driveshaft for runout, or the amount that a part wobbles up and down or side to side when it is in motion.

Sep 23, 2011 | 2001 GMC Sonoma Extended Cab

1 Answer

Ford Contour (2.5 V6 manual) jerks badly with throttle modulation


Check the lower motor mount near the drivers side. This usually is a problem with these cars. It costs about 140.00 or so depending where you reside. Also check the passenger side hanger bearing on the CV shaft if this is loose it will cause jerking too.

Jan 12, 2010 | 1998 Ford Contour

1 Answer

Vibration in drivetrain


You actually answered your own question. Your transmission is slipping. The reason that it's vibrating is that it isn't downshifting to 1st gear to start. It sounds like it's either in 2nd or 3rd. The leak may have a lot to with it. I'm afraid you need to find your nearest transmission repair shop ASAP.

Oct 01, 2008 | 1994 Isuzu Rodeo

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

Related Topics:

388 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts

yadayada
yadayada

Level 3 Expert

76673 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8531 Answers

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

Answer questions

Manuals & User Guides

Loading...