• Welcome to the Contour Enthusiasts Group, the best resource for the Ford Contour and Mercury Mystique.

    You can register to join the community.

name that sensor

O

OB1

Hard-core CEG'er
Joined
Apr 30, 2005
Messages
1,637
Location
East AL/West GA
I'M In the middle of a 3l build up & having all kinds of problems that were not found during my research. I have a sensor in my donor svt motor that will not screw into the block of the 3L. here is a pic of the 2.5 sensor, BTW its in the rear just below the head right by the trans.
100_1165.jpg


Now here is a pic of the 3.0 w/ what looks like just a ground screwed into the block.
100_1166.jpg


It looks like I can just find a reducer but I was still wondering what it actually is. Thanks for any help & I'll try to get a better pic posted. Just in case you are wondering the 3L is upside down & the 2.5 is not.
 
that's the knock sensor. the hole needs to be retapped on the 3L block to fit the 2.5 knock sensor. you can search to find the actual specs for the tap...
 
I remember one search I did came up with the wrong tap info....just double check to make sure the thread matches the sensor before you tap it.
 
thanks guys I searched knock sensor & came up w/ some good info, although no pics. It is also being said that you can just splice in the wires & use the new style sensor, but as you can see my junkyard engine doesn't have much to splice to. Looks like i'll check the tool box for a m12 x 1.5 tap, hope thats the right size, or I'll have to buy a new new style sensor. my luck sucks! I can't believe that I haven't seen any of this before during all of my studies!
 
5speed3.0SE® said:
that's the knock sensor. the hole needs to be retapped on the 3L block to fit the 2.5 knock sensor. you can search to find the actual specs for the tap...
Click to expand...


No, this should not be the case anymore.

You should use the sensor that comes with the block. If that means you cut the plug off the 3L harness and splice it onto your 2.5L then so be it.

The reason is that the sensors are updated and they are somewhat mated to the block. They are tested to detect knock in that block with THAT moving mass.
 
building this 2.5 is gonna be sooo much easier! haha. yeah anyways....i keep hearing that splicing the wires is the best way.....
 
stilov said:
I thought the sensors were done in correlation with the computer...
Click to expand...

Both are correct.

The sensor is installed on the engine and after subjecting the engine to things that generate "knock" or the precursors of knock, the output of that record would be recorded. After enough tests an average from that type of sensor in that type of engine would be input to the pcm code.

So I'm not saying it wouldn't work, I'm saying it probably is no longer as accurate and it could be either more or less sensitive if installed in a different block. I'm sure any knock sensor could be used in any block AFTER it has been tested to see what signals come out from each knock/pre-knock event, but who has the ability around here to do that?
From the reading I've done you would stick the same sensor in the same block and if you were really good you'd take the knock sensor data from the stock pcm code that came with the engine.....but we are only mortal men after all. :help:

I've also found that the old style sensor are way more sensitive and are constantly pulling timing when used on the 3L blocks.
 
Buckshot77 said:
I've got a couple of those knock sensors with plenty of splicing length left on it. PM me and we can set something up.

Rick
Click to expand...

Well it looks like I should havebeen patient! I looked around & I had a m12 X 1.5 tap & drill so I priced a new sensor (new style) since my wires were cut, It was around $70 bucks so I went the cheap route. I should be ready to install this thing & I hope it works out w/ the old style. I also factored in the fact that I have 3 of the old style ones laying around.
quick pic!
100_1176.jpg
 
I have a question for you guys. I have a 99 cougar, mtx, recently 3.0 swapped. That knock sensor you are speaking of- I just took off the cable and didn't use it.. I dont think there was even a place to connect it on my wiring harness. Is there something I overlooked? Or is this okay?
 
justin I had no idea you were over here, I should have just asked you over at the other boards :cool: thanks alot man!
 
stealthy3L said:
justin I had no idea you were over here, I should have just asked you over at the other boards :cool: thanks alot man!
Click to expand...

No problem man, I wonder if all the contours that are '98+ have knock sensors or not. Or if they had a couple of "oops" models sneak out of the factory without one like we did.
 
2005 Escape Knock sensor?

2005 Escape Knock sensor?

I have an 05 Escape 3L. Shop manual just says the knock sensor is on the "Right side". I can't find the thing. Anyone know where it is?
 
Okay -that is an odd looking knock sensor. I wonder why my JY motor had no sensor on it? Weird. I ordered a new one. I'll splice the Escape plug onto my svt harness.
 
I put in a 98 svt engine in to my 95 se. and the oil pressure sensor needs an adapter.

I was told that what I need is the

"the oil pressure sensor adapter"

its just a fitting which threads into the engine block

I am not sure but I think this is the same thing as u are looking for ... I need the part number . please help...

I without it the car is not going to Run.
 
I finally found the part number , whats it exacly called, and the dimentions. for has discontinued the part for about 2 years now. So I gave up on trying to get the part from the ford. I searching for the part, and I went to american auto parts and they didnt have anything that would work.

Ford use to sell the part under cylinder block adapter.

Hopefully I will be able to get it from a junkyard. also I learned that the cougar engines have the that adaptor,

thanks for ur reply.

Wish me good luck. :)
 
You must log in or register to reply here.
Back
Top