- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Mitsubishi's have always had problems with their throttle bodys carboning up, Magnas and Pajeros especially. Clean the throttle body with a can of carburettor cleaner, don't forget to open the butterfly and get right in behind it. Also check your ignition leads with a multimeter, any more resistance than 4000 ohms per foot of lead length, replace the lead. The misfiring may also have now damaged your oxygen sensor, check this with an analog multimeter, the O2 sensor output should vary between 0 and 1 volt as the needle moves between these readings (to vary the mixture) if not then replace the O2 sensor also. This problem is not related to your tyres.
If this happens when acceleration in a straight line, it indicates either a cylinder misfire, in which case the MIL lamp will be lit or, you have worn CV joints at each end of the drive shafts to the driven wheels.
Outer CV wear is usually manifest by a 'rhythmic clicking' on turns under load. Vibration usually is inner CV wear.
The vibration could be caused by regular misfiring of the engine. I'd check for vacuum leaks, failed ignition wiring; check at night for sparks under the hood where they don't belong.
If the wiring hasn't been changed since the truck was new, it's probably overdue.
Bad wiring can also become sensitive to high ambient moisture too.
I would venture to say your exhaust is hitting your frame, or, you may need new motor mounts. The exhaust is what I would lean toward. If you can imagine your exhaust sitting under your vehicle, and the fact that the vehicle has a little age, the motor mounts probably give a little, causing the motor to move slightly on acceleration and deceleration, thus your exhaust is going to move, and may be vibrating on whatever its touching. Good luck.
This may be caused by bad motor mounts. Lift your hood and then start the engine. Put it in reverse and hold the brake. Push on the gas peddle and watch the engine. If it trys to roll over they may be bad. Be careful.