Oil leak help... - Page 2 - ZR-1 Net Registry Forums

bans25 · 05-25-2015

Sensor is circled in the picture. I cleaned up the oil when the car was on the lift and let it run for about 20 mins, you can see the fresh oil in the area. I think its coming out from the right side of this sensor? it does not seem to be coming from above but its possible I am mistaken. If I can find one of these sensors I plan on just replacing, cleaning it up again and running to see if this is the leak..

A26B · 05-25-2015

This is the Oil Pressure Switch if that is what you need.
http://www.jerrysgaskets.com/switch-...new-90-95-9b3/

Post #4 Good Advice:

Quote:

........If I were you, though, I'd first try to remove the connector from that suspect switch to see if there's oil in it and in its wire loom. If so, you've found the source.

Post #2 is a common leak & good place to investigate if no oil in the oil pressure switch connector, quoted above.

Dynomite · 05-25-2015

Quote:

Originally Posted by bans25

Oil leak on pass side of the block I think it may be this sensor near oil dipstick? Any idea what this sensor is? Does this typically leak oil or probable it's something else leaking? I have about 40k miles on my 90.

Thanks much!

A bit more information on exactly where the oil is "dripping" from and how much?
Is the oil dripping from the side of the oil pan and between what two oil pan bolts?

One method to use is to pressure wash the under side of the engine including from top right and left side (under hood) just below cam covers (when engine is NOT hot). Do not get water below the Plenum in the Valley. After the pressure wash it is then much easier to see fresh oil leaks.

A26B · 05-26-2015

It is the crankshaft position sensor.
1990 does not have an oil level sensor.

bans25 · 05-26-2015

Quote:

Originally Posted by A26B

It is the crankshaft position sensor.
1990 does not have an oil level sensor.

thank you, I just looked up the crank position sensor and it does look much closer than other sensors I have been looking at.

When I pull this, replace the O-ring and re-install, is there any case learn procedure that needs to be run?

I appreciate all the help! Will be nice to clean up this leak.

Jitse · 05-26-2015

You can take out the sensor without any problem, it can be sticky but play a bit with your fingers and you can pull it out. I am taking of the - pole from the battery when working on electronics / engine.
If taking off the negative cable, computer needs to learn again after connecting battery.

05-26-2015	#6
Jitse Join Date: Aug 2013 Location: Holland Posts: 80	Re: Oil leak help... You can take out the sensor without any problem, it can be sticky but play a bit with your fingers and you can pull it out. I am taking of the - pole from the battery when working on electronics / engine. If taking off the negative cable, computer needs to learn again after connecting battery.

05-26-2015	#4
A26B Join Date: Dec 2003 Location: Arcadia, OK Posts: 3,403	Re: Oil leak help... It is the crankshaft position sensor. 1990 does not have an oil level sensor. __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.