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Thread: ´98 V8 crank sensor plug original location Reply to Thread
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  Topic Review (Newest First)
03-30-2020 01:04 AM
Zilliver The single wire is probably oil pressure sensor for 93-95 ZJ
03-29-2020 10:43 AM
Hempinfool I know this is a little off topic but what is the connector that comes off the harness with the crank sensor?
When I replaced my crank sensor I noticed that there was a single wire connector that was not connected.
For reference, It was behind the distributer like normal.
03-02-2020 03:25 PM
tjx0116 The crankshaft position sensor has been replaced! As expected, my hands and forearms are scratched up, but I've shed not a drop of blood.

Thank you all for your help with this! I look forward to not stalling on a road without a shoulder.
03-01-2020 01:56 AM
Zilliver
Quote:
Originally Posted by tjx0116 View Post
Were you able to replace the CPS from the engine bay or underneath? Do you have any shots of the CPS attached? I'm having a hard time finding it. Thanks!
The connector from underneath the car. The sensor from the engine bay.

The connector in my ´98 (V8) is near the O2 sensor underneath.

On my´95 (V8) the connector was on top, near the oil sensor.
02-28-2020 07:21 PM
tjx0116 Thanks, guy! I really do appreciate your efforts to help me locate this sensor. I'll have another go at it when the weather warms up in a few days.
02-28-2020 02:47 PM
Timo_90xj You should be able to spot it with a flashlight if you peek through between the transmission/ engine and passenger downpipe or thereabouts.

Like I wrote and as can be seen in Wingless' photo, sensor is located at about 1-2 o'clock if you look from behind the engine. It really cannot be seen from above - and not that well from below either - but can be somewhat accessed if you know where the sensor is.
02-28-2020 01:23 PM
wingless
Quote:
Originally Posted by wingless View Post
Here is the CPS, visible after lowering the transmission (removing the transfer case linkage and disconnecting the exhaust support).

Mine was retained by Allen head cap screws w/ loose internal tooth lock washers.


Not seen or felt from the top.

My image from below shows the part, retained by the shiny bracket, below the wingless watermark.

Note oil pressure sensor, then distributor is to left of wingless watermark.
02-28-2020 01:07 PM
tjx0116
Quote:
Originally Posted by Timo_90xj View Post
I agree, that is definitely the oil pressure sensor.





Wingless has a 5.2, but 5.9 is exactly the same. CPS mounting bolts on my 5.9 are a combination of a hex-head with (IIRC) #3 Phillips- head slot on top.
I still can't find it. Perhaps I'm overlooking it. Here are a couple of shots of my passenger side engine bay. Am I at least starting in the correct location?



02-28-2020 12:56 PM
Timo_90xj
Quote:
Originally Posted by wingless View Post
No, that looks like the oil pressure sensor.

I agree, that is definitely the oil pressure sensor.


Quote:
Originally Posted by tjx0116 View Post
Is this a 5.9L in the shot?

Wingless has a 5.2, but 5.9 is exactly the same. CPS mounting bolts on my 5.9 are a combination of a hex-head with (IIRC) #3 Phillips- head slot on top.
02-28-2020 12:39 PM
tjx0116
Quote:
Originally Posted by wingless View Post
Here is the CPS, visible after lowering the transmission (removing the transfer case linkage and disconnecting the exhaust support).

Mine was retained by Allen head cap screws w/ loose internal tooth lock washers.


Is this a 5.9L in the shot?
02-28-2020 12:37 PM
wingless
Quote:
Originally Posted by tjx0116 View Post
Thanks, Timo! Is this the CPS in the photo?
No, that looks like the oil pressure sensor.
02-28-2020 12:35 PM
wingless Here is the CPS, visible after lowering the transmission (removing the transfer case linkage and disconnecting the exhaust support).

Mine was retained by Allen head cap screws w/ loose internal tooth lock washers.


02-28-2020 12:25 PM
tjx0116
Quote:
Originally Posted by Timo_90xj View Post
Looking from behind the engine, it sits at around 1 or 2 o' clock. Two bolts on the top, they are either 1/2" or 13mm. Unfortunately I don't have a picture of the exact location, but it's the only sensor in that area.
I can do it from above or below with my modified exhaust, but IIRC with the stock setup it's a pretty damn tight fit either way.
Thanks, Timo! Is this the CPS in the photo?

02-28-2020 12:18 PM
Timo_90xj
Quote:
Originally Posted by tjx0116 View Post
Were you able to replace the CPS from the engine bay or underneath? Do you have any shots of the CPS attached? I'm having a hard time finding it. Thanks!

Looking from behind the engine, it sits at around 1 or 2 o' clock. Two bolts on the top, they are either 1/2" or 13mm. Unfortunately I don't have a picture of the exact location, but it's the only sensor in that area.
I can do it from above or below with my modified exhaust, but IIRC with the stock setup it's a pretty damn tight fit either way.
02-28-2020 12:02 PM
tjx0116
Quote:
Originally Posted by Zilliver View Post
Replace is done.







13mm socket or 6mm hex for the bolt. Have seen a lot of different info in the web
Were you able to replace the CPS from the engine bay or underneath? Do you have any shots of the CPS attached? I'm having a hard time finding it. Thanks!
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