AYC Pump making some crazy noises when I do a quick direction change. - Mitsubishi Lancer Register Forum
 
 

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Old 12-08-2019, 19:15   #1
DeltaBoxer
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AYC Pump making some crazy noises when I do a quick direction change.

I am hearing some crazy noises coming from the ass end when I change direction at speed. Seems to like a loud creaking like a hinge that's never been oil after 30 years out in the rain. Is this likely to be a failed AYC pump? I dont have any AYC lights on but I did see it come on last year when it was hot. Any advice would be spot on. I have recently poly bushed and restored the rear end. The diff has fresh oil in it and the suspension seems fine.
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Old 12-08-2019, 19:17   #2
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AYC Pump making some crazy noises when I do a quick direction change.

Sounds like AYC fluid needs changing. Did you put the correct oil in?


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Old 12-08-2019, 20:39   #3
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It's likely the AYC clutches are creaking. Usually can be cleared by changing the AYC fluid in the rear diff a couple of times to clean it out. This doesnt need an AYC bleed so is easy to do (although the fill plug is a pig to get to).
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Old 12-08-2019, 22:05   #4
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Quote:
Originally Posted by Evo6er View Post
Sounds like AYC fluid needs changing. Did you put the correct oil in?


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Old 13-08-2019, 06:12   #5
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Did you change both oils in the rear diff?
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Old 13-08-2019, 10:53   #6
richyx
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its the ayc fluid in the diff, and its the clutch plates squeaking

get some ayc fluid and change the clutch bath in the diff, keep repeating the flush until noise has gone
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Old 14-08-2019, 22:21   #7
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Agree with richyx, Also richyx I heard you have had success rebuild the solenoids is that true? It's the one part on these pumps that I havent quite figured out how to resolve in house.
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Old 15-08-2019, 17:51   #8
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its the ayc fluid in the diff, and its the clutch plates squeaking

get some ayc fluid and change the clutch bath in the diff, keep repeating the flush until noise has gone
Excellent, Thanks for the very helpful advice! I will get right on it and let you know how I get on.

Cheers!
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