4.0l 6 cyl....low oil pressure. Diagnosis, is it the sender, gauge, or actually low oil press?
11-12-2007, 04:27 PM
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4.0l 6 cyl....low oil pressure. Diagnosis, is it the sender, gauge, or actually low oil press?
Ok, sorry for the OT but you guys have more knowledge of stuff than any other group I can think of....
I recently bought a '94 Mazda B4000, 4.0l, 4wd, beater/winter truck. 150,000mi, tranny slips, but engine runs strong. The oil pressure gauge reads very low, and is somewhat erratic, bouncing to normal every great once in a while. I would think the engine would run poorly, or at least noisy with low oil press, but it does not. Obviously, I need to hook up another gauge to find out for sure, but how would I know if the sending unit is bad(which is what I'm thinking)? And I'm also not real sure where to tap into the block (assuming there IS a stock location) to hook up the gauge. Basically, what do I need and need to do to figure this out. Low oil pressure isn't something to overlook. Any pointers gentlemen?
I recently bought a '94 Mazda B4000, 4.0l, 4wd, beater/winter truck. 150,000mi, tranny slips, but engine runs strong. The oil pressure gauge reads very low, and is somewhat erratic, bouncing to normal every great once in a while. I would think the engine would run poorly, or at least noisy with low oil press, but it does not. Obviously, I need to hook up another gauge to find out for sure, but how would I know if the sending unit is bad(which is what I'm thinking)? And I'm also not real sure where to tap into the block (assuming there IS a stock location) to hook up the gauge. Basically, what do I need and need to do to figure this out. Low oil pressure isn't something to overlook. Any pointers gentlemen?
11-13-2007, 05:05 AM
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not sure if it helps, but on my 30v i just had to check/ fix the connection to the sender b/c the
oil pressure light came on. Was as simple as recrimping the connector and plugging it back on.
From the fluctuation of the gauge, it is possible its a bad connection (corroded). Before i went through the trouble to hook up another gauge i'd check all the electrical connections. Make sure they are clean and are making good contact.
From the fluctuation of the gauge, it is possible its a bad connection (corroded). Before i went through the trouble to hook up another gauge i'd check all the electrical connections. Make sure they are clean and are making good contact.
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