Northstar Engines and System Technical Discussion Discussion, 94 Eldorado Oil level sensor problem in Cadillac Engine Discussion; I was very pleased to learn on this forum why my oil level indicator stayed on constantly. I purchased a ...
- 12-01-03 01:16 PM #1Cadillac Owners Member
- Join Date
- Oct 2003
- Huntsville AL
94 Eldorado Oil level sensor problem
I was very pleased to learn on this forum why my oil level indicator stayed on constantly. I purchased a new sensor as suggested by the posts from an internet site. Now can somebody please tell me where this thing goes? A picture would be nice. Yes, I am blonde!
- 12-02-03 11:06 PM #2Cadillac Owners Connoisseur
- Join Date
- Jan 2003
- Nevada, Still the land of the free!
Re: 94 Eldorado Oil level sensor problem
Here is the step-by-step on replacing it for Northstars:
1) Pull the car into the garage and jack both front wheels.
2) Remove the drain plug and drain the oil into a pan. A
10-quart pan is a good idea as the Northstars have 7 1/2
quarts of oil in them. Make sure it's clean if you are going to
reuse it. ( Not recommended )
3) Let the car cool down. This is important as the block is
aluminum and will expand more than the body of the sensor (which
is steel). Aluminum has a higher coefficient of thermal expansion
than steel and you will have to torque hard to get the thing out
(possibly damaging the threads in the block).
4) When facing the car, the sensor is to the left of the oil
filter and has one electrical connector on it. When underneath
the car, facing toward the front, it is on your right. Disconnect
the sensor connector carefully so as not to break it.
5) I used a 1-1/8" wrench to take out the sensor. It is probably
metric, but the 1-1/8" worked fine. An adjustable wrench will
6) Apply some anti-sieze compound to the threads of the new
7) Start the new sensor into the block BY HAND. You want to make
sure that you DO NOT cross-thread it in. Having to re-tap the
hole because the threads were destroyed WOULD BE A MAJOR
DISASTER, you do NOT want to do this!!!!
8) Torque the sensor home. BE CAREFUL, over-torqueing it is a
REALLY BAD THING. Remember, that big wrench you are using is
going to exert a lot of torqe on the bolt, so be gentle.
9) Re-connect the wiring to the sensor.
10) Replace the drain plug into the oil pan.
11) Drop the car off the jacks.
12) Re-fill the oil.
That's it. Took me 15 minutes of work, including jacking time
(but not including cool-down).
- 01-05-04 12:52 PM #3
Re: 94 Eldorado Oil level sensor problemOriginally Posted by kcnewell