98 SE Oil leaking BAD - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-16-2008, 09:55 AM   #11
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Quote:
Originally Posted by willwren
What brand of sender, and where was it purchased?
Niehoff, purchased it from Murray'* Auto Parts for around $25. And I don't know if they will take it back if I buy one online and trade them out because my dog chewed on the box while I was under the car

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Originally Posted by agrazela
Bear in mind there are two OEM senders for the 92-99 years; one for if you have an oil pressure gauge on your instrument cluster, another for if you just have the idiot light. Make sure you got the right one.
Do they have a difference in shape and size? The new one I got looks just like the old one
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Old 05-16-2008, 12:59 PM   #12
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Quote:
Originally Posted by 92BonneSE
Quote:
Originally Posted by agrazela
Bear in mind there are two OEM senders for the 92-99 years; one for if you have an oil pressure gauge on your instrument cluster, another for if you just have the idiot light. Make sure you got the right one.
Do they have a difference in shape and size? The new one I got looks just like the old one
OK, I went to Rockauto.com

1998 Pontiac Bonneville SE has this listed:
STANDARD MOTOR PRODUCTS Part # PS246T {TRU-TECH}
WITH GAUGE
http://info.rockauto.com/getimage/ge...ages/PS246.jpg
(Click link above for image)

1998 Buick LeSabre Limited has these listed:
The same as above (PS246T); and,
STANDARD MOTOR PRODUCTS Part # PS270T {TRU-TECH}
WITH LIGHT
http://info.rockauto.com/getimage/ge...ages/PS270.jpg
(Click link above for image)

This tells me three things:
1) Bonneville apparently only comes with gauge (while LeSabre can go either way).
2) If your store looked up your part under 1998 Bonneville, you should have gotten the right one.
3) If yours is the longer-bodied model (see the linked images), you definitely got the right one.

Assuming you got the right one; did the leaking stop? Are you sure you threaded it in all the way? Maybe try some teflon thread sealant (from a tube, not pipe tape)?

EDIT: I see Bill Buttermore already suggested the sealant, and to leave a few threads clean for possible grounding; interestingly, I cannot find any relevant info (wiring diagram, connector endview) about the oil pressure sensor / sender anywhere in my 1998 FSM...GM oversight?...so I cannot tell you whether the sensor grounds through the block or through the harness. If through the block, maybe the threaded hole needs cleaning?
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Old 05-16-2008, 05:13 PM   #13
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I believe I got the correct one. The guage still reads, but it seems off since it sometimes says at idle that my oil pressure is right above the red line. I'll get some pics...
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Old 05-16-2008, 05:55 PM   #14
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Old 05-19-2008, 01:50 PM   #15
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What kind of miles are on your car? It could be that the guage is accurate, you know.
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