1996 Mazda 626 Oil Leak

1996 MAZDA 626

160,000 MILES • 4 CYL • FWD • MANUAL

DADDYROACH007

MEMBER
2 POSTS

I am driving my brother's 1996 Mazda 626. Oil is dripping from a sensor installed in the engine block just above the oil filter. it appears the sensor has a collar on it that is meant to grab with a wrench to tighten or loosen. It is a very tight spot (under the air intake behind the block). From under the jacked up car I barely managed to get a small pair of pliers on it to try to tighen it and/or remove it to examine it. I had only a little leverage, but I could not budge it. I do not have a repair manual for this car, and I am not even sure I am doing the right thing. I don't even know what sensor I am trying to remove. Request any help in how best to remove, or even the name of the sensor. Thanks, Sean

Dec 8, 2010 at 4:16 PM

JACOBANDNICKOLAS

✓ASE Certified Mechanic
110,194 POSTS

It is the oil sending unit. Chances are it needs replaced and not tightened. It is in a bad spot. I usually can get them from the bottom, but that is when the car is on a lift.

Dec 8, 2010 at 4:22 PM

DADDYROACH007

MEMBER
2 POSTS

Thanks, Jacobandnickolas. You got me pointed in the right direction. I was able to remove and replace the oil sending unit; leak is fixed.

Dec 8, 2010 at 6:48 PM

JACOBANDNICKOLAS

✓ASE Certified Mechanic
110,194 POSTS

Great! Glad it's fixed.

Let us know if you have questions in the future

Take care,
Joe

Dec 9, 2010 at 12:26 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.