1986 Mazda LX 4Dr - Oil Light

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  #1  
Old 03-03-04, 12:09 PM
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1986 Mazda LX 4Dr - Oil Light

1986 Mazda 626 LX 4DR, Automatic Trans.

I have for the last several years have had electrical problems with this car. Ignition switch replace, problems with the electric windows, dash lights, etc.

Now for the last two months the oil light will fliciker on and off. At times it stays completely off and appears that if I hit a bump on the road it then starts flickering again.

Can it be possible this is all associated to the electric system or do I need to be concerned that it truly is an oil problem of some sort.

Thanks,

Harlan
 
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  #2  
Old 03-03-04, 01:30 PM
Join Date: Jun 2002
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Best way to rule it out is a manuel oil pressure gage. I believe some of the parts stores rent them out.

Better to be sure and not ruin the engine.
 
  #3  
Old 03-04-04, 05:02 AM
lude2nv
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This is your oil sensor, It sounds like it's came loose and may be dangling in the pan, I've had this happen to me twice. Both on GM's though..

Generally i deal with imports, I know in my honda this would be more then possible. Check it out. WHen you go over the bump your sensor moves.

I doubt it's oil pressure, If it was your light would be on solid, as in the oil pressure sending unit would be alerting you, And if the OPSU was dead it would also be on solid.



austin mckay
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  #4  
Old 03-04-04, 05:48 AM
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what?

This is your oil sensor, It sounds like it's came loose and may be dangling in the pan,

oil pressure sending units are NOT located in the pan...

to the poster:

you may have a poor connection at the sending unit...but larry is correct...if in the absence of an obvious problem at the connector, borrow or rent a guage and be sure you DON'T have a real situation brewing...guessing that it's ok is an invitation to disaster.
 
  #5  
Old 03-04-04, 05:53 AM
lude2nv
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Correct, The oil Sensor is in in the pan or bottom of the block.

The sending unit is located in the block, If the sending unit is unplugged or faulty, or reporting, The oil light will be lit


You can check for pressure if you want, Acceerate the car and listen for valve tap.

I don't feel its an OP or OPSU issue what-so-ever.

But it never hurts to check.

I have an oil pressure, and oil temp gauge, and 2 OPSU one for the ECU one for the gauge. to keep things in check.

I've been down this road before too. and i never said the OPSU was in the pan.
 
  #6  
Old 03-04-04, 05:59 AM
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neither did you...

...differentiate between the oil LEVEL sensor and the oil pressure sending unit. did you check to see if that 86 mazda 626 has both?

and for the record...diagnosis be feeling (I don't feel its an OP or OPSU issue what-so-ever.) is a dangerous game to play with DIYers...they don't have the technical knowledge or understanding that you may have. sorry to contradict you here...but i think you could have been more clear.
 
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