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| Oil pressure gauge varies with rpms https://slantsix.org/forum/viewtopic.php?t=46793 |
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| Author: | Rose McFadden [ Wed Oct 26, 2011 10:17 am ] |
| Post subject: | Oil pressure gauge varies with rpms |
Hello. I'm a newbie. Just got a '77 Dodge sl6 truck. Fabulous rig. I took it out for a high speed run, and at about 55 mph, the oil gauge went down to practically zero. At lower rpm, the pressure came up to about the 35 mark. The oil is fine, full up and clean. Am I looking at a sender unit or a sensor going bad, or something else. Has anyone had this kind of thing happen? |
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| Author: | SlantSixDan [ Wed Oct 26, 2011 10:39 am ] |
| Post subject: | |
Welcome here. Probably a faulty gauge. If the oil pressure had actually dropped off to zero, you would have heard about it (rods knocking, engine self-destructing). The sender is a logical place to start. Also it will also be a good idea to service the oil pressure relief valve to make sure it's doing its job, as described in these two threads: thread 1, thread 2. |
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| Author: | Rose McFadden [ Wed Oct 26, 2011 12:35 pm ] |
| Post subject: | |
Thanks for your reply. I'll check the valve as you suggested. I kinda figured if it were really zero pressure, I'd have symptoms, ie dead truck. This is such a cool site-lots of mopar experts! |
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