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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Fri Dec 21, 2018 4:29 Post subject: Re:crank sensor harness |
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Hi guys, how do I remove the crank sensor harness on a Trooper 4fx1?
Thanks |
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Posted: Fri Dec 21, 2018 4:29 Post subject: Google Ads keep this community free to join! |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Fri Dec 21, 2018 20:49 Post subject: |
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it's part of the main loom |
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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Fri Dec 21, 2018 21:12 Post subject: |
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eithan h wrote: |
it's part of the main loom |
Ok, that I know, what I should said is , how do I get it from behind the engine so I can inspect it for breaks? |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Fri Dec 21, 2018 22:41 Post subject: |
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easier to do continuity checks between the pins at the sensor and the ecu, i'd be surprised if it's got a break in it as it should be in conduit all the way |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Fri Dec 21, 2018 22:42 Post subject: |
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have you got no crank reading on tech2? |
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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Sat Dec 22, 2018 4:28 Post subject: |
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eithan h wrote: |
have you got no crank reading on tech2? |
Engine speed is only 96 okay yethow many battery's I use, have also changed the computer, as for continuity testing, the crank plug is under the car , don't see how I would do that and I don't know what wire to look for at the computer |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sat Dec 22, 2018 11:34 Post subject: |
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ok so thats why it's not starting then, so either the cam or crank sensor has gone wrong or the timing has jumped or the crankshaft has excessive end float and the crank sensor can't pick up the ring properly. can you get hold of an oscilloscope? to look at the signal from each sensor i can tell you what wire it is at the ecu to go on |
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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Sat Dec 22, 2018 16:38 Post subject: |
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eithan h wrote: |
ok so thats why it's not starting then, so either the cam or crank sensor has gone wrong or the timing has jumped or the crankshaft has excessive end float and the crank sensor can't pick up the ring properly. can you get hold of an oscilloscope? to look at the signal from each sensor i can tell you what wire it is at the ecu to go on |
No I don't have access to an oscilloscope, how can I check the timing, or the crank end float and if it is the crank or timing, how do I fix it? Please and thanks |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sat Dec 22, 2018 18:38 Post subject: |
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if it's crank end float then it means an engine rebuild as the thrust bearings or crank shaft have worn, if it's just the sensor then it's replaceable. if you take the front timing cover off and turn the engine until the cam marks line up then if it's correct you will have a small notch on the back edge of the crank pulley line up with a line cast in to the timing cover. if these two marks line up then the timing is ok and your looking at a sensor issue so the easiest way is to replace the crank sensor then if you don't have access to a scope |
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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Sat Dec 22, 2018 18:49 Post subject: |
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eithan h wrote: |
if it's crank end float then it means an engine rebuild as the thrust bearings or crank shaft have worn, if it's just the sensor then it's replaceable. if you take the front timing cover off and turn the engine until the cam marks line up then if it's correct you will have a small notch on the back edge of the crank pulley line up with a line cast in to the timing cover. if these two marks line up then the timing is ok and your looking at a sensor issue so the easiest way is to replace the crank sensor then if you don't have access to a scope |
Ok, what if it has jumped timing? |
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eithan h Moderator
Joined: 11 Dec 2005 Posts: 8195 Location: oxfordish
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Posted: Sun Dec 23, 2018 12:21 Post subject: |
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if the marks don't line up then just remove the belt set it all up and refit the belt (ideally replace the belt) remember you don't have to worry about the oil pump pulley you just need to make sure the cam and crank are in line |
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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Sun Dec 23, 2018 16:14 Post subject: |
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eithan h wrote: |
if the marks don't line up then just remove the belt set it all up and refit the belt (ideally replace the belt) remember you don't have to worry about the oil pump pulley you just need to make sure the cam and crank are in line |
Ok, thanks Eithan, will let you know that goes. |
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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Tue Dec 25, 2018 1:54 Post subject: |
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Bighorn98 wrote: |
eithan h wrote: |
if the marks don't line up then just remove the belt set it all up and refit the belt (ideally replace the belt) remember you don't have to worry about the oil pump pulley you just need to make sure the cam and crank are in line |
Ok, thanks Eithan, will let you know that goes. |
My garage has open an roof and it is the Rainey season, so this might take a while, sorry |
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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Thu Jan 03, 2019 20:57 Post subject: |
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Bighorn98 wrote: |
Bighorn98 wrote: |
eithan h wrote: |
if the marks don't line up then just remove the belt set it all up and refit the belt (ideally replace the belt) remember you don't have to worry about the oil pump pulley you just need to make sure the cam and crank are in line |
Ok, thanks Eithan, will let you know that goes. |
My garage has open an roof and it is the Rainey season, so this might take a while, sorry |
Hi Eithan, the motor has 250 KM on it , should I change liners and rings bearings or what?
Thanks |
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Bighorn98 ***
Joined: 23 Apr 2016 Posts: 201
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Posted: Sun Feb 17, 2019 3:16 Post subject: |
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Bighorn98 wrote: |
Bighorn98 wrote: |
Bighorn98 wrote: |
eithan h wrote: |
if the marks don't line up then just remove the belt set it all up and refit the belt (ideally replace the belt) remember you don't have to worry about the oil pump pulley you just need to make sure the cam and crank are in line |
Ok, thanks Eithan, will let you know that goes. |
My garage has open an roof and it is the Rainey season, so this might take a while, sorry |
Hi Eithan, the motor has 250 KM on it , should I change liners and rings bearings or what?
Thanks |
So I took the engine apart and found nothing wrong, changed the cam and crank sensors for used ones, still will not dart, can any one say how to use the tech 2 to read the cam sensor and what I look for? |
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