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Old Apr 14, 2021 | 09:44 AM
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St. Jude Donor '16
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I am in process of purchasing a 2002 that is a good deal - not fantastic. However, it has the oil pressure pegged at 130 and did it suddenly which is an indication of the oil pressure sending unit which would need to be replaced, I have a 200 mile drive to get it home and get it fixed. So the question is would you buy it and drive it home without the repair. I understand the repair cost and figured that into the price. Any comments are appreciated.
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Old Apr 14, 2021 | 12:35 PM
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I would, many c5 owners drive their cars with the oil pressure pegged out, for a while before replacing the sender, it's a common failure on our cars.
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Old Apr 14, 2021 | 12:38 PM
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I would too. I would just check the oil level before I drove it home.
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Old Apr 14, 2021 | 01:10 PM
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Thanks guys. What I did is tell him to get it fixed and I will buy the car. Looks like it is hard to get my big hands back there to fix it. He said it would be fixed in the next couple of days. So that is my status. But driving it then is no issue and I appreciate the responses.
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Old Apr 14, 2021 | 02:30 PM
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Originally Posted by popshumphrey
Thanks guys. What I did is tell him to get it fixed and I will buy the car. Looks like it is hard to get my big hands back there to fix it. He said it would be fixed in the next couple of days. So that is my status. But driving it then is no issue and I appreciate the responses.
Drive it!!! When you get it home, the best way to replace the sender is to first clean the area, as best you can, around the intake manifold with compressed air, then a garden hose. Let it completely dry, then pull the intake. WAY easier on LS motors than original SBC-NO coolant to drain! Some people actually take a holesaw to the cowl, and cut a nice big hole in it, so they can access the sending unit. Personally, I'd NEVER do that. Once you pull that intake, you'll wonder why every other intake you've ever removed wasn't designed as well as this!!! Good luck......
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Old Apr 14, 2021 | 04:07 PM
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Originally Posted by popshumphrey
Thanks guys. What I did is tell him to get it fixed and I will buy the car. Looks like it is hard to get my big hands back there to fix it. He said it would be fixed in the next couple of days. So that is my status. But driving it then is no issue and I appreciate the responses.
Yeah this is kind of up to personal preference. I personally would've done what you did and asked to have it fixed first.
I don't reckon there's currently an oil pressure issue if it's running and driving, but it does prevent you from detecting possible oil pressure issues arising during your journey back.

Now that I have changed my oil pump, I wouldn't be too worried if the sender pegged, but on a prospective car purchase, it would be too risky for me.
I bought my car and drove it 1400miles home, FL -> TX. A bad sender would've killed the deal for me.
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