Question about 1994 Mercury Cougar

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Rear shaking during smog test

Went to have car smog check done and guy said shaking caused machine to abort test at high rpms he said the rear shakes excessively at high rpms. i never have problems while driving. what could cause this?

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  • Mercury Master
  • 75,051 Answers

Out of balance tires or a bent rim.

Posted on Apr 18, 2013

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6ya6ya
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Posted on Jan 02, 2017

motor1258
  • 6674 Answers

SOURCE: Car Shakes

Certainly sounds like a partially, or seized caliper hanging up, which has warped rotor. What exactly did they replace at brake job, do you know? Either way they need to be rechecked.

Posted on Mar 27, 2009

localwonder
  • 6784 Answers

SOURCE: I have a 2001 Mercury Sable the check engine light

Hi, this is an issue that concerns the coil pack on your engine. It is malfunctioning. and, i recommend testing to make sure of thsi issue.

Check for dirt, corrosion or damage on the terminals and repair as necessary.

Measure coil primary resistance between ignition coil pin 4 (B+) and pins 1 (coil 2), 2 (coil 3) and 3 (coil 1) .


Resistance should be 0.3-1.0 ohms. If resistance is out of specifications, replace the coil pack. If resistance is within specifications, proceed to secondary windings testing.



Coil 1-cylinders 1 and 5 Coil 3-cylinders 2 and 6 Coil 2-cylinders 3 and 4


Resistance should be 12.8-13.1 kilohms. If secondary resistance is not within specification, replace the coil pack.

You can jump this link below for a good look at a diagram of the coil pack.

Click Here


Posted on Jul 11, 2009

jonathancole
  • 127 Answers

SOURCE: when i brake my steering column shakes, what could

you might need to replace your brake rotors

Posted on Aug 12, 2009

  • 312 Answers

SOURCE: 2001 MERCURY MOUNTAINEER V8 DRIVES PERFECT UNTIL

This is often the result of a tire that is out of balance. Check for bubbles on any of the tires and have the tires balanced. That should clear up the problem.

Posted on Dec 05, 2009

roniecon
  • 6826 Answers

SOURCE: As I accelerate the car will pull to the right,

One of the front brake calipers are stuck,holding the rotor.

Posted on Jan 07, 2010

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There is probably no need to contact the BAR though you always have the right reserved. Trouble Code P1774 indicates your Mini's rear wheel speed sensor lost its signal, and trouble code P1775 indicates the right rear wheel speed sensor lost its signal as well. Both more than likely triggered during the dynamometer portion of the smog check inspection; while the front wheels are turning and the rear wheels are stationary. During this time, as far as the ABS system knows, the rear wheel sensors have lost their signals.
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Ok the Guy.that ran the emissions test it don't


Check the help link
----



Vehicle smog test failed Due to NO MIL/check engine light?
http://schematicsdiagram.blogspot.com/2011/12/vehicle-smog-test-failed-due-to-no.html

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