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Engine related idle vibrates the whole truck

Cold Motor after starting the truck the whole truck has drone type vibration the floor board drivers side give you a food message and your ears vibrate. Its present at different speeds. it appeared @ 32K miles. Had it to the dealer 4 times they worked on only the lower end ie disconnected motor mounts exaust system. THe engineer said they traced the vibration to the harmonic balancer. but the vibration was within spec. So I decided thta because they can't really find the soarce that its OK. Never took the belt off and ran the engine. Anyone had this problem

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ourhowse
  • 2007 Answers

SOURCE: severe vibration

Replace balancer. You don't notice them until you rev it up.

Posted on Aug 23, 2009

ronaldo_ross
  • 1056 Answers

SOURCE: vibration on the engine, change motor mount all

Check the idle control system, also check if all the injectors are working. Provided you already changed the spark plugs.

Posted on Nov 14, 2009

  • 1 Answer

SOURCE: severe vibration and knocking sound!

My sons explorer had a similar problem. beleive it ior not, it was the shakles, they were severely wroughted, I changed them and the vibration is gone.

Take a look, it may help

Ken

Posted on Jun 07, 2010

davemaurer
  • 84 Answers

SOURCE: I've changed my engine mounts 3 times on my 2004 A4 cabreolet and they fail within miles(start to vibrate & then within a week, severe knocking) the 2nd time, also changed the ****** mount, 3r

Engine mounts do not go bad in five miles. Sounds like you're treating a symptom and not the cause of a more serious issue. Are you sure all cylinders are firing correctly? That the severe knocking is not coming from your engine internals? Have you checked the steel around the engine mounting points for cracks or other damage? And just in case, if the mounts you are using are poly, are you lubing them before installation?

Posted on Sep 03, 2012

skychief2001
  • 21873 Answers

SOURCE: FRONT END VIBRATION

The dealer is not going to replace something if they can not prove to the company the part is defective. The company won't pay the warranty claim.
A bent axle was my next guess. A garage could find out by using the same dial indicator used to check for a bent rim.
The dial gauge is placed against the shaft and the wheel is turned, if the axle is bent the dial will move.
I don't know what Road Forced balanced means, but most balancing machines duplicate road speed of about 30MPH. So a tire or wheel can balance ok on a machine but still have a vibration at speeds above 30 or 40mph. The easiest way to make sure is move the front tires to the back and see if the vibration travels too.
If you are describing the problem correctly, it almost has to be in the transmission, the axles, or the wheels. There is a slight chance a strut or strut mount could be faulty and allowing a small bounce to be amplified.

Posted on Sep 16, 2012

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