Engine - Warped crankshaft causing timing issue? | Ford Escort Owners Association (FEOA)

Engine Warped crankshaft causing timing issue?

Discussion in 'Tech & Repair' started by FurryWrecker911, May 10, 2018.

  1. FurryWrecker911

    FurryWrecker911 The one that's a dog.

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    A buddy of mine was finally able to send his car to a garage due to it running rough and shutting off and refusing to turn back on at random over the past year now. The garage reported that the crankshaft was broken (I'm imagining it's warped ever so slightly or something) so the timing was off. I have never heard of anything like that before and all I can find on Google is "how to tell you have a failing crankshaft position sensor." No articles with "timing" and "crankshaft" together, so I wanted to ask if any of you have run into something like this?

    My other friend and I are sharing the same confusion on how a bad crank could cause a timing issue. We assume the belt is still fine, but for a warp to cause a slip is what we're lost on. I'm guessing it could happen, but how is beyond my knowledge. It runs fine when it runs fine. It will just decide to shut off and not start at times, and the (bad) solution is to just keep turning it until it feels like running.

    Keep in mind, my friend who's car is in the shop is NOT a car guy. He's just repeating what he was told by the garage and said"I either have to replace the engine, have the engine torn apart completely, or just buy a new car" so I'm taking what he said with a grain of salt.
  2. denisond3

    denisond3 Moderator Staff Member

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    I dont know that an Escort crankshaft would ever break, but I suppose its possible: In which case I doubt the car would run okay again once it started. I can think of other things more likely to be causing an intermittent: like a bad Crankshaft Position Sensor, or a bad wire in the wiring harness, or a PCM that had gotten wet from a heater core leak, or a bad EDIS, or a bad coil pack, or a bad tone ring on the vibration damper, and probably several other things.
    So I would want another mechanic (who didnt know the backstory) to have a look at it.
  3. marclar

    marclar Moderator Staff Member

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    if the crank is broken its not going to run.
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  4. FurryWrecker911

    FurryWrecker911 The one that's a dog.

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    Your pfp and your statement fit hand in hand too well.

    Chrysler Sebring. My bad, I should have mentioned that.
    Edit: Thanks for pointing out all the other things that could be the root cause. I don't know about getting it taken to another garage though because he'd have to tow it away or keep cranking it hoping it will spur to life yet again, but I'm not gonna speak for what he might do. I can only assume.

    What I'm thinking is the timing belt is just slipping out of place and that's it (absolute nonsense theory probably). There's clearly a timing issue but a crank issue? It'd help if they specified what "broke" about it.

    ANOTHER EDIT: I just was told the computer is kicking back a "crankshaft out of sync" error. When the engine is hot it'll turn over no problem. It's when it's cold that it won't start. Not sure how this correlates to it dying while driving if it runs fine for a long time, then just conks out. The cost to repair is too great, so he's gonna trade in for a new car. Tbh he's due for a new one for how often it gets stuck in the shop.
    Last edited: May 11, 2018
  5. pextor

    pextor Moderator Staff Member

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    You say when it's cold it won't start. Do you mean the engine is cold, or the outside air temperature? It could be a temperature sensor keeping it from starting.
  6. FurryWrecker911

    FurryWrecker911 The one that's a dog.

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    Engine. If it's morning and he goes to start it he has to keep turning it over until it starts to cycle normally, but even then it's running rough. Sorta reminiscent to when I had an ignition failure and replaced my packs, cables, and plugs, but once it sits for a few minutes and warms up it runs fine. You can even turn it off and back on no problem. BUT it has shut off on him while driving 3 times if I recall, and every time he was driving at highway speeds and it just gives up. He's able to pull over and just start it again, though.
  7. denisond3

    denisond3 Moderator Staff Member

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    I know zero about Chrysler Sebrings. I just would wonder if the Sebring had 'benefited' from sharing any technology with the Fiat part of the corporation.
    I am joking of course.
  8. pextor

    pextor Moderator Staff Member

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    I would get a code reader that can read sensor data and see what all the sensors are doing. It's probably flooding itself or something because a sensor is wacky.
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  9. Tnashua

    Tnashua Gearhead / hot rodder with a soft spot for Scorts

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    Perhaps the keyway on the crank (or corresponding gear) is worn allowing the timing to slip around... I have heard of that happening before.
  10. marclar

    marclar Moderator Staff Member

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    what motor is in it? a 'cam crank correlation' or ' can sync' code means that the pcm has detected the cam is too far out of spec. depending on what motor is in the car it could mean the tensioner has failed or the belt is so old its missing teeth. never seen a 'warped' crank, there heat treated and will snap if there is too much 'warpage' which isnt really possible.

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