Has anyone experienced high pitch noise on an RR-Sport HSE with an A.C.E. pumpt?

10

Asked by Aug 02, 2014 at 09:31 PM about the 2007 Land Rover Range Rover Sport HSE

Question type: Maintenance & Repair

Hi, I drive an 07 RR-Sport HSE with A.C.E. system.
Since I had it, I clearly hear a high pitch noise once the engine accelerates.
Took it to dealership(s) multiple times and their answer was "it is normal".
I don't think it is normal for such a vehicle to have such noise knowing it's an 8 Cylinder SUV with plenty of horse power, but sounds like a broken water or steering pump.

There seems to be a small number of people experiencing this noise. I have seen other HSE (same yr and model) with an A.C.E. system, but without such noise.

I find it odd to consider this noise normal. Could it be a pulley tensioner, or a bad bearing, or pump about to go bad and dealership wouldn't touch it until it breaks?

I have seen posts/forums talking about refurbishing the A.C.E. pump to resolve the issue (U.K. based posts). and Here in the U.S. no one have yet resolved this issue.

4 Answers

58,265

Yes ,i would think,timing belt idler and tentioner pulley,and all idler,s. need checking.

1 out of 1 people think this is helpful.
10

Thank you for your answer. Would you know how many pulley tensioners and idlers exist on an HSE type engine? is it 3 or more?

1 out of 1 people think this is helpful.
58,265

You have two idler,s,one a rider and the other a tentioner,but your water pump is there all so,it runs on your timing belt.

1 out of 1 people think this is helpful.
10

Thank you! Would you recommend an LR Master Technician in the Chicagoland area?

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