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Replacing Crankshaft Position Sensor

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Moose Knuckle

10+ Year Contributor
31
0
Jul 26, 2011
Lincoln Heights, California
I Need to replace my crankshaft position sensor. I talked with my mechanic and he said he has to remove the block and timing belt and other stuff to get under the car where its located and its going to be 5 hours of labor. I've been doing some searching on this forum and online and it sounds like its easy to get to. I have a 97 420a. Is it easy to replace, and can someone give me some quick instructions on how to replace it? Thank you, any help is appreciated!!
 
Found the answer myself...
The sensor is about $150 from Mitsubishi, but can be bought aftermarket for less. Installation takes about 15 minutes (just elevate the vehicle, go underneath and locate sensor, unbolt and replace).
 
It's right above the oil filter on the back of the block. One plug on it, and one bolt holding it in. Remove the bolt, pry the old one out with a flat head screw driver, install new sensor with o-ring, install bolt and done. Also you can get the beck/arnley part from rockauto.com for 20 bucks. It actually comes with a 1 year warranty unlike the part from the dealer.
 
For the record, I changed mine in the parking lot at work last week with only a jack and 10mm ratchet in 5 minutes, literally. It's not hard at all. One 10mm screw holds it in the engine block right above the filter.

Your 'mechanic' is trying to royally screw you. I would report him to the BBB if it's a real shop.

Isn't this like your 3rd thread on this?
 
Yeah im sketched out about this guy. But i need him to pass me with inspection before i can drive. I could tow it to someone else but it would be easier to have him do it, i just dont want to get screwed over. I printed out stuff showing its a 15min job and where the crankshaft position sensor is located. He called me this morning and said that's for the Auto transmission and the manual is 4G63 and is more work to replace because of the wire? He says he has to remove a bunch of stuff to get it replaced... Any info on this? I have a manual transmission, eclipse RS.

the 4G63 is only on GS-T eclipses correct? :banghead: I just need someone to confirm that its an easy job having a manual transmission so I can call back and tell him to stop ####ing with me :nono:
 
Yeah im sketched out about this guy. But i need him to pass me with inspection before i can drive. I could tow it to someone else but it would be easier to have him do it, i just dont want to get screwed over. I printed out stuff showing its a 15min job and where the crankshaft position sensor is located. He called me this morning and said that's for the Auto transmission and the manual is 4G63 and is more work to replace because of the wire? He says he has to remove a bunch of stuff to get it replaced... Any info on this? I have a manual transmission, eclipse RS.

the 4G63 is only on GS-T eclipses correct? :banghead: I just need someone to confirm that its an easy job having a manual transmission so I can call back and tell him to stop ####ing with me :nono:

HE IS WRONG. Get your car from him as soon as you can because he is a hack that's trying to screw you over.
 
Yeah im sketched out about this guy. But i need him to pass me with inspection before i can drive. I could tow it to someone else but it would be easier to have him do it, i just dont want to get screwed over. I printed out stuff showing its a 15min job and where the crankshaft position sensor is located. He called me this morning and said that's for the Auto transmission and the manual is 4G63 and is more work to replace because of the wire? He says he has to remove a bunch of stuff to get it replaced... Any info on this? I have a manual transmission, eclipse RS.

the 4G63 is only on GS-T eclipses correct? :banghead: I just need someone to confirm that its an easy job having a manual transmission so I can call back and tell him to stop ####ing with me :nono:
Bwahaha. Its almost worth it go all the way up there and do it for you. Just to see this idiot at work. Maybe have a little conversation for entertainment purposes.

BUT, more importantly, what makes you want to change your cranksensor? I hope its not this goof ball.

MB
 
Yeah idk I've been trying to stay on top of things till i can get my car running then I'm definitively not going back there.

As for why the crankshaft. I did the keydance a while ago and I forget which code came up but the crankshaft was mentioned as a possibility. The probelm was after 10min of driving car would idle low, lower radio volume, than after 15 min car would die and not start back until it sat for 5-10 min with no electronics on. Alternator and Battery are supposedly fine, and coils are pretty new so I'm thinking the mechanic may be right with the crankshaft seeing as they are a common problem with these cars. I'm also thinking ECU if the crankshaft is not the problem...
 
Tell this retard mechanic that you have a 420a, ( you would think he would know the difference). There is no difference between the manual and auto, both have the crank sensor in the same location. He is trying to pull a fast one on you. I would pick up my car and never call this guy again.
 
well, i sure hope you guys are right, i'd like to drive my car, it's not getting spark, air and fuel are fine. the engine will crank and crank but not the slightest sputter of life. CPS, i'm gonna replace that i guess, if that doesn't do it, i guess i'm gonna replace the CAS, and if that doesn't do it, replace the ECU, this sound about right to you guys? i'm running short on ideas here
 
tell the guy to put it on a lift and show him where it is. you cant miss the sensor its right on the back side of the block. he is defintely trying to take your money or he really is that dumb and doesnt know what he is talking about.
 
well, i sure hope you guys are right, i'd like to drive my car, it's not getting spark, air and fuel are fine. the engine will crank and crank but not the slightest sputter of life. CPS, i'm gonna replace that i guess, if that doesn't do it, i guess i'm gonna replace the CAS, and if that doesn't do it, replace the ECU, this sound about right to you guys? i'm running short on ideas here

Before you replace anything get yourself a multi-meter and a factory service manual(there are also links on here) and test them before you replace them. If you choose to replace them and it doesn't fix ## car you will just be upset and a little more broke
 
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