|
|
Post by black98ls on Oct 12, 2014 22:16:29 GMT -5
Its been awhile since I last posted but i ran into a big issue today. Car has been running great since finally tracking down the P0400 CEL code problem. Today im driving around normal, no issues, then out of nowhere it cuts off while sitting at a stop light. Tried to recrank...nothing. Engine turns over but will not crank. It sounds so very close to cranking but no dice. Checked the codes and its showing P0340 (camshaft position sensor). Anyone have an issue similar? Easy fix? Any help or thoughts would be great. IM STUCK!!
|
|
|
|
Post by black98ls on Oct 13, 2014 9:35:00 GMT -5
After some research it also seems as though the Ignition Control Module (ICM) could be the issue as well and maybe the P0340 could be a result of failed cranking attempts. I have tested the coils and the middle coil pack gets spark when trying to turn over, while the outer 2 coil packs do not. I have tried replacing the coils and with some spares as well as trying the middle coil on the outers with no luck so that seems to rule out a bad coil, but the possibility of what controls the coils being bad (i.e. the ICM).
|
|
|
|
Post by ES_97Sport on Oct 13, 2014 13:21:04 GMT -5
After some research it also seems as though the Ignition Control Module (ICM) could be the issue as well and maybe the P0340 could be a result of failed cranking attempts. I have tested the coils and the middle coil pack gets spark when trying to turn over, while the outer 2 coil packs do not. I have tried replacing the coils and with some spares as well as trying the middle coil on the outers with no luck so that seems to rule out a bad coil, but the possibility of what controls the coils being bad (i.e. the ICM). FYI, I think the word you're meaning isn't 'cranking', its 'firing'. The engine cranks, but doesn't fire. Plugs fire in pairs. So, both plugs on a coil fire when that coil is triggered. If you're getting spark from one coil, but not the others, I'd suspect the ignition controller. Per what the techs told me two months ago when I was working on the Montero->Montero Sport ECM swap, if the cam sensor isn't working you will not have any spark at all. If after replacing the coils with known good coils, if you have consistent spark but only to one or two coils, then its the ignition controller. If you replace the ignition controller and that doesn't do it, then it's probably the ECM/PCM. You also have a crank sensor but I don't think that's your problem, either. If that starts going sideways, you usually have poor driveability before it just dies. Then when it dies, you have no spark at all. Anyway, just MHO. Edward |
|
|
|
Post by black98ls on Oct 13, 2014 23:29:20 GMT -5
Thanks Ed, im gonna pick up an ICM from a pull-a-yard and try that first. I figured that with some coils getting spark and not others to check what controls the coils first. plus the ICM is a couple of bolt vs removing the front of the engine.
|
|
|
|
Post by ES_97Sport on Oct 14, 2014 13:51:07 GMT -5
Thanks Ed, im gonna pick up an ICM from a pull-a-yard and try that first. I figured that with some coils getting spark and not others to check what controls the coils first. plus the ICM is a couple of bolt vs removing the front of the engine. Yep, that's where I'd start and it's really easy to remove/install.  Edward |
|
|
|
Post by black98ls on Oct 18, 2014 15:46:11 GMT -5
well, it's not the ICM, put a new one on today along with some new coil packs and still nothing. Got a camshaft position sensor ordered now. How difficult is it to get to? Just a matter of taking off the timing belt cover along with all the accesory pulleys?
|
|
|
|
Post by ES_97Sport on Oct 19, 2014 14:16:51 GMT -5
well, it's not the ICM, put a new one on today along with some new coil packs and still nothing. Got a camshaft position sensor ordered now. How difficult is it to get to? Just a matter of taking off the timing belt cover along with all the accesory pulleys? Sorry to hear that.  No idea. Never had one go out. Edward |
|
|
|
Post by black98ls on Oct 19, 2014 18:13:00 GMT -5
well, upon further inspection neither is the problem.
Broken timing belt. like it was cut in half with scisors. no other sign of wear, no cracking, nothing.
so the question is.....am i F***ed? is the engine ruined? i know these engines are interfernce so im not anticipating good news.
|
|
|
|
Post by jay4x4 on Oct 20, 2014 0:08:33 GMT -5
well, upon further inspection neither is the problem. Broken timing belt. like it was cut in half with scisors. no other sign of wear, no cracking, nothing. so the question is.....am i F***ed? is the engine ruined? i know these engines are interfernce so im not anticipating good news. That's how my old Audi was....most likely gone, either have to take heads off to check valves or put a new belt on and so a compression check. probably not worth the time though. |
|
|
|
Post by black98ls on Oct 20, 2014 15:52:46 GMT -5
Yea, that's what I figured. Unless there is a majority probability that other damage hasn't occurred, then i believe its time for us to part ways. Soooo....anyone need any parts? haha
|
|
|
|
Post by ES_97Sport on Oct 20, 2014 16:15:30 GMT -5
Yea, that's what I figured. Unless there is a majority probability that other damage hasn't occurred, then i believe its time for us to part ways. Soooo....anyone need any parts? haha There is a SLIGHT chance you didn't damage anything. A VERY slight chance, but a chance none the less. But, yea, you're going to have to start tearing it down to find out and you'll have to re-set everything back up - which means getting the cams and crank realigned. IMHO, if you have the cash, I'd take it to a good dealership and have a tech take a look and go from there. Probably cheaper than doing it yourself. In my experience, you could find a low mileage replacement engine cheaper than all of the above. My '02 3.5L with 50K was less than $3K. Something to think about, I guess .... Edward |
|
|
|
Post by dclambertt on Oct 20, 2014 17:51:22 GMT -5
Seems you would have heard some nasty noises if you busted valves, etc. Hope that's the case for you!
|
|
|
|
Post by jkdv8 on Oct 20, 2014 19:24:03 GMT -5
I have heard of them being fine when they snap at a low speed or at idle.
|
|
|
|
Post by jay4x4 on Oct 21, 2014 1:10:43 GMT -5
Even though it's a totally different vehicle. I was idling when my Audi's belt let go and it was no go. I'll tell you right now too, if it went and you continued to crank it I doubt it's still good. Your starter would be turning the crank and moving the pistons while the cams left the valves stationery. This may not have the force to tear anything up but sure doesn't do good to keep slapping the valves with the pistons. You can try plug spark plugs and look for dents in the piston heads too but sometimes too hard to tell. Just get a new motor and call it done.
|
|
|
|
Post by bdmontero on Oct 21, 2014 10:15:03 GMT -5
I would pull the heads and look at least. No point in getting a whole new engine for no reason. JMO.
Sent from my SM-N900V using proboards
|
|
