Sticky Throttle Linkage

In the last few weeks we have seen two instances where the throttle has stuck open on 123 diesels. This can be very scarey and you may need to have the where-with-all to turn the engine off while driving to keep the engine from over revving. This can make is hard to steer and brake! In most cases you can put your toe under the throttle pedal and pull it back. Best to just prevent it from happening in the first place.

The problem is most often caused by corrosion on the throttle linkages at or around the engine valve cover. When the linkage balls and or lever posts corrode they can stick and prevent the throttle from returning to idle.

The solution is lubricating your linkage at least once a year. Automatic transmission fluid makes a great lubricate (much better than WD 40). Check your linkage today for stiffness. In some cases you may need to remove the linkage levers from their attaching posts to remove the corrosion completely. Use a Q-tip or small acid brush to apply the lubricant to each ball joint and lever.

While you are at it you should also check the play in the ball joints. Diesel vibration causes these to wear out early. Call us and we can supply you with new ball joints for your entire linkage system at reasonable cost.

CHECK YOUR THROTTLE LINKAGE TODAY!