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Old 08-15-2015, 03:59 PM   #1
clay247
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4.8 oil pump keeps going out

Have put 3 in a row in it goes right out anyone ever had this problem
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Old 08-15-2015, 05:01 PM   #2
truckdude239
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Re: 4.8 oil pump keeps going out

have you thought maybe you have a different problem then the oil pump?
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Old 08-15-2015, 08:58 PM   #3
clay247
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Re: 4.8 oil pump keeps going out

I'm new to this site so hope I'm doing this right I know something is causing it wondering what 3 different oil pumps in a row on a really low miles truck
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Old 08-16-2015, 12:09 AM   #4
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Re: 4.8 oil pump keeps going out

Quote:
Originally Posted by clay247 View Post
I'm new to this site so hope I'm doing this right I know something is causing it wondering what 3 different oil pumps in a row on a really low miles truck
That a very vague description. Not much to go wrong in that pump I suspect that the O-ring is missing or damaged or the pickup tube is cracked or broken
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Old 08-16-2015, 01:28 AM   #5
clay247
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Re: 4.8 oil pump keeps going out

3 different oil pumps from 3 different places each time changed I put new oil put it in it will run for a few hundred miles then lose all oil pressure don't know why
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Old 08-17-2015, 08:30 AM   #6
68C15
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Re: 4.8 oil pump keeps going out

Is it an actual loss of pressure or just the dash gauge showing a loss? (Bad oil pressure sensor)
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Old 08-18-2015, 07:13 AM   #7
clay247
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Re: 4.8 oil pump keeps going out

It is an actual loss of pressure 3 different oil pumps all bout from different stores so don't really know what is causing it I've talked to several ppl who don't know either thanks for any hrlp
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Old 08-18-2015, 10:33 AM   #8
95 S_Trucker
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Re: 4.8 oil pump keeps going out

Have you verified pressure with a mechanical gauge?

Does it knock when it looses oil pressure?

How many miles are on it? Is the engine worn out?

I have never ever seen an oil pump fail on its own. I have seen debris cause one to fail, but at long as you have a screen in the pick up, that cant really happen.

Have you taken apart any of the failed pumps to see what happened to them?
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Old 08-18-2015, 12:14 PM   #9
clay247
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Re: 4.8 oil pump keeps going out

120,000 miles it's knocks when it goes out and there's no pressure don't know if a bearing is going out or what just seeing if anybody has ever seen the problem
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