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Old Jan 31, 2007 | 03:37 PM
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Default Oil Pressure sender

I had an oil pressure sender failure over a year age. I replaced it with a Standard Motor Products sender part # ps308, from Rockauto.com. I have never heard of anyone having a reoccurring failure when using a ps308. Has anyone had a failure of a ps308? I don’t need any response about other brands, just the ps308. Thanks.
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Old Jan 31, 2007 | 06:09 PM
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Old Jan 31, 2007 | 07:00 PM
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On my second Standard ps308. First one lasted about a hundred miles or so.

Recently pulled the second 308 and I'm running the Buick brass unit (GM part)---have the 308 as a spare.
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Old Jan 31, 2007 | 07:28 PM
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Originally Posted by 426 Hemi
On my second Standard ps308. First one lasted about a hundred miles or so.

Recently pulled the second 308 and I'm running the Buick brass unit (GM part)---have the 308 as a spare.
I know you did the remote install of the Buick unit. Do you know about the service life of the Buick unit? Have you searched to see if there is anything on line about them failing? As I recall the Buick unit has the same wiring plug as the Corvette unit do they not? From some of the other posts I think I'd be tempted to do the cowl hole replacement if I could find or make an adapter fitting. Especailly if I could find a nice big plastic firewall plug that would fit in the hole that I would need to make.
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Old Jan 31, 2007 | 08:05 PM
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Originally Posted by 87bob
I know you did the remote install of the Buick unit. Do you know about the service life of the Buick unit? Have you searched to see if there is anything on line about them failing? As I recall the Buick unit has the same wiring plug as the Corvette unit do they not? From some of the other posts I think I'd be tempted to do the cowl hole replacement if I could find or make an adapter fitting. Especailly if I could find a nice big plastic firewall plug that would fit in the hole that I would need to make.
Bob, I would just go ahead and cut the hole. The surface you cut is so irregular you will never find a plug. Once the hole is cut you will never see it. I guess you could reach under there and feel it if you were so inclined.
I cut mine with no regrets...........
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Old Jan 31, 2007 | 08:13 PM
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Originally Posted by 87bob
I know you did the remote install of the Buick unit. Do you know about the service life of the Buick unit? Have you searched to see if there is anything on line about them failing? As I recall the Buick unit has the same wiring plug as the Corvette unit do they not? From some of the other posts I think I'd be tempted to do the cowl hole replacement if I could find or make an adapter fitting. Especailly if I could find a nice big plastic firewall plug that would fit in the hole that I would need to make.
No research--just going on a hunch. The Buick replacement from GM is still the old brass job----similar to the stocker on my 98 C5 that lasted 99k. Maybe the stock of Buick sensors hasn't dropped to a point where they are getting resupplied with the newer aluminum Mexican units.

Like I say, just a hunch.
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Old Jan 31, 2007 | 08:50 PM
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I was waiting to hear from someone researching the Buick sender. I missed 426hemi's report since his post (with pics) on sender relocation. I have yet to have mine fail, but like both the "Relocation" and "Access hole" method and if it did fail I might incorporate both procedures rather than R&R the intake.
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Old Jan 31, 2007 | 09:02 PM
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Originally Posted by old55
I was waiting to hear from someone researching the Buick sender. I missed 426hemi's report since his post (with pics) on sender relocation. I have yet to have mine fail, but like both the "Relocation" and "Access hole" method and if it did fail I might incorporate both procedures rather than R&R the intake.
Ed, if you do the "access hole" there is no need to do the relocation as it is a 30 min. job.........................
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Old Jan 31, 2007 | 11:23 PM
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If someone who has cut the hole, a photo of exactly what has to be removed and the location, shape etc. would be great
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Old Feb 1, 2007 | 12:28 AM
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If someone who has cut the hole, a photo of exactly what has to be removed and the location, shape etc. would be great

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Old Feb 1, 2007 | 01:24 AM
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Originally Posted by C6 Z06
Ed, if you do the "access hole" there is no need to do the relocation as it is a 30 min. job.........................
Yes, I realize that you wouldn't have to "relocate" if you cut the access hole, But my thought was cutting the hole rather than removing the intake but relocating the sender just to "isolate" it from vibration looking to extend its lifespan.
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Old Feb 1, 2007 | 06:33 AM
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Originally Posted by Vettman 1
If someone who has cut the hole, a photo of exactly what has to be removed and the location, shape etc. would be great

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Old Feb 1, 2007 | 12:40 PM
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Originally Posted by Vettman 1
If someone who has cut the hole, a photo of exactly what has to be removed and the location, shape etc. would be great
Sticky above, this section. Post #63
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Old Feb 1, 2007 | 12:58 PM
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Awesome info here.
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Old Feb 2, 2007 | 03:08 AM
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Default Oil Gage sits on 80

Patience please, I test drove a 99 C-5 and noticed the oil pressure gage maxed at 80 while idling. Like wise I have seen C-5 pictures of instrument panels with the oil pressure gage reading 80psi, when the engine was obviously idling (tach at 800 rpm).

Is This thread about changing the oil sensor, due to causing that pressure indicator problem?

thx in advance from new C-5 owner

Last edited by rmendoza; Feb 2, 2007 at 03:11 AM. Reason: added info
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Old Feb 2, 2007 | 03:36 AM
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Originally Posted by rmendoza
Is This thread about changing the oil sensor, due to causing that pressure indicator problem?

thx in advance from new C-5 owner
Yes it is. The currently available sensors seem to fail so much, that folks are finding ways to make replacement easier. It's also about a couple of non-traditional ways to deal with the problem, quicker and easier, as the "official" way requires pulling the intake manifold. Lots of info on this board on the sensor problem and how to deal with it.
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Old Feb 2, 2007 | 06:46 AM
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Originally Posted by 2KFRC5
Sticky above, this section. Post #63
Thanks for posting the link to that thread. I'm going to be tackling this problem real soon.
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Old Feb 2, 2007 | 05:31 PM
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Thank You so much. After checking with the Corvette Center out of Colorado Springs/Pueblo CO, I just bought a 98 C-5. They told me the sensor failure was a common problem in those yr cars, but if it was a good car, negotiate the repair price (approx $600 parts & labor - mostly labor) down from the sale price (which I did) and they would fix it.

After I purchased the car, I had to get to CA, so I didn't have the time to let them fix it. The car ran great and engine quiet. How concerned should I be with getting this fixed? I drive 7 miles to and from work, per day and it is my daily driver.

Appreciate the advice,
rick
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Old Feb 2, 2007 | 05:47 PM
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Originally Posted by rmendoza
Thank You so much. After checking with the Corvette Center out of Colorado Springs/Pueblo CO, I just bought a 98 C-5. They told me the sensor failure was a common problem in those yr cars, but if it was a good car, negotiate the repair price (approx $600 parts & labor - mostly labor) down from the sale price (which I did) and they would fix it.

After I purchased the car, I had to get to CA, so I didn't have the time to let them fix it. The car ran great and engine quiet. How concerned should I be with getting this fixed? I drive 7 miles to and from work, per day and it is my daily driver.

Appreciate the advice,
rick
Depends on if and/or how bad it's leaking. Mine was going at it pretty good. Look for an oil spot on your driveway.
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Old Feb 2, 2007 | 05:51 PM
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I replaced my sender 3 weeks ago.I made the access hole.I used a tapered hole expander bit.I also had to tear and cut at it a bit to get a big enough hole that I could r&r the plug.The hole is about the diameter of a coffee cup. It is not a pretty operation,the fiberglass area has several bends in it .Cut it directly above the sensor,after removing the wiper blades and the apron below them....BE CAREFUL NOT TO CRACK OR CHIP THE WINDSHIELD. That was my only concern.Now I could replace the sensor in about 15 minutes.You cannot see the hole !!!!!! It took me about 45 minutes to do it the first time ...including the hole.
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