Oil Light When downhill braking - Defender Source
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  #1  
Old September 19th, 2006, 10:55 PM
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Chris Baldewin
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Oil Light When downhill braking

Ok, here's the problem. When I brake hard on a downhill my oil light is coming on and it sounds like one of the lifters is sticking. Typically I have found this to go away once the engine rev's a little bit. No I don't have a pointy head, I found this out on the trail and had no choice but to rev the engine to get up some of the other hills. Anyway does anyone have any ideas why this might be happening.

Thanks

Chris
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Old September 19th, 2006, 11:13 PM
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Quote:
Originally Posted by Baldewin
Ok, here's the problem. When I brake hard on a downhill my oil light is coming on and it sounds like one of the lifters is sticking. Typically I have found this to go away once the engine rev's a little bit. No I don't have a pointy head, I found this out on the trail and had no choice but to rev the engine to get up some of the other hills. Anyway does anyone have any ideas why this might be happening.

Thanks

Chris

Sounds to me like your oil level is low, or it's a really steep hill, and the pickup tube is getting exposed. The pickup tube is at the rear of the oil pan, and nosing over too much and hitting the brake too hard can easily slosh all the oil to the front of the pan.

-Hans
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  #3  
Old September 19th, 2006, 11:16 PM
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No, thats not it. The oil level is full and this happens on your typical city street.
I just went out and tried it and light has gone out and I drove it around the block and the lifter noise went away. If I jamb on the brakes hard going down hill it will come back.
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Old September 20th, 2006, 01:34 AM
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hmmmm.... I wonder if maybe the pickup tube is cracked? The light and the lifter tap mean it's a definite drop in pressure, not a false symptom. How many miles on the engine?

-Hans
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  #5  
Old September 20th, 2006, 06:04 AM
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either the oil pick up tube is blocked or cracked and or the oil pump is on its last legs. If as you say you can get this to occur on the flat under braking then the oil pump may be the culprit
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Old September 20th, 2006, 08:38 AM
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I had the same thing happen on 2 different rovers.

In both cases the bolts that hold the pickup tube in place came loose, hopefully yours is as simple as that.
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Old September 20th, 2006, 10:04 AM
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Gentleman Thanks,

It looks like I will be pulling the pan and checking the tube.

Chris
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