No Oil Pressure After Replacing Water Pump - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-16-2011, 07:05 PM   #11
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Good to hear, I was just concerned because I bought an SMP ECT recently, and it did not work with the dash gauge, so I had to get an OE AC Delco to get it to work.
Of course that works by measuring resistance, and the OPS would be a simple pressure sensor.
Thanks again for the help!

I do have another question or two, as I have never replaced one.
Do you know what I need to remove it? Just an open end wrench?
And in my 96 PA do you think I can get to it without removing the alternator, tensioner, and power steering pump again?
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Old 12-16-2011, 07:38 PM   #12
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I found the easiest way is to pull the right wheel and splash guard. The sensor is right there. Getting a wrench in there is a pain, can't remember the size, 24mm or 26mm comes to mind.
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Old 12-16-2011, 07:47 PM   #13
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Thanks again, the help is greatly appreciated!
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Old 12-16-2011, 07:58 PM   #14
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Any time.
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Old 12-16-2011, 09:37 PM   #15
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Had somebody on another forum bring something up that I did not think of.
Is it possible I could have a large oil leak since the sensor is broke off?
I was told I could.
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Old 12-17-2011, 11:39 AM   #16
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Quote:
Originally Posted by WilliamE View Post
Had somebody on another forum bring something up that I did not think of.
Is it possible I could have a large oil leak since the sensor is broke off?
I was told I could.
Run the engine and see if it leaks. It'* quite possible to break the sender and not have a leak, and it could leak as well. Go have a look, if it leaks get another ride to the parts store.

Roger.
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Old 12-17-2011, 12:14 PM   #17
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Run the engine and see if it leaks. It'* quite possible to break the sender and not have a leak, and it could leak as well. Go have a look, if it leaks get another ride to the parts store.

Roger.
I just ran it till it got up to normal op temps, and then ran it easily while driving it a few miles, then I ran it hard, and so far I see no leaks at all, so I should be good to go to get to the store, after my trip to the store I'll leave it parked till I can either put in a mechanical gauge and sender, or till I can get the more accurate of the non mechanical senders, the AC Delco OE one, I've heard bad things about advance auto'* BWD senders, a few people reported the gauge reading half of what it did with the original OE sender.

Thanks for the response rustyroger!
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Old 12-17-2011, 01:36 PM   #18
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Your lucky.In Bubba (93 Z71) if that oil pressure sender is broke or goes bad the truck will not allow power to the fuel pump.I see it as a saftey measure that way if oil pressure is none you cant spin a rod bearing or do any other damage kind of cool but also a headache when you find that out the hard way.
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Old 12-17-2011, 04:32 PM   #19
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Your lucky.In Bubba (93 Z71) if that oil pressure sender is broke or goes bad the truck will not allow power to the fuel pump.I see it as a saftey measure that way if oil pressure is none you cant spin a rod bearing or do any other damage kind of cool but also a headache when you find that out the hard way.
So that would explain why the car does not want to start most of the time now, I was going to ask if that could cause the car not to start, I see it can.
Thanks for the response.
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Old 12-18-2011, 02:42 AM   #20
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lol no problem man
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