A Rough or Unstable Idle Due to Intake Manifold Vacuum Leak on Land Rover Range Rover

A rough or unstable idle may be noted due to an intake manifold vacuum leak. Our technicians tell us a revised intake manifold gasket, along with manifold bolt flat washers which will better distribute the clamping force are available to correct this concern.

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Average mileage: 133,442 (90,000–179,769)
Engine affected: 4.4L V8
10 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 2000, 2006
12 people reported this problem
4 people shared problem details
a rough or unstable idle due to intake manifold vacuum leak
When starting my range Rover I always see a black smoke comming from the tail pipe and it has a fuel like smell and it just recently start doing this at the beginning of this year and the check engine light is on , But my truck driver normal and it also burns a lot of gas from time to time!
2006 Land Rover Range Rover- 4.4L V8140,000
Vacuum leak and overheating
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