'96 SOHC: Engine stall under high speed and heavy acceleration.

Discussion in 'General Motoring' started by Chris Bailes, Feb 18, 2004.

  1. Chris Bailes

    Chris Bailes Guest

    Hi guys,

    I was hoping someone in here could point me in the right direction on
    fault-finding this issue on my 96' Chrysler Neon LX.

    Symptoms are that car engine judders, cuts out (after 1/4 mile) and then
    fails to restart after prolonged periods (greater than half hour on
    motorways). Probably also normally is within about 90 seconds of an 80mph
    overtake (heavy accelerations) or 80mph hill climb. If I pull over and lift
    the bonnet for five minutes (its actually been between 10 and 2 mins) then
    the car is fine until next long journey. If I allow the car to stop of its
    own accord then coolant boils over and pours from reservoir overflow. On
    each occasion the service engine light has come on and poor running is
    observed until the engine light goes out again.

    This first occurred last summer in 35 deg Celsius temperatures, where the in
    the investigation the radiator was found leaking and replaced. I've had two
    further occasions where fault occurred; light on and off within a week in
    September and November. The fault occurred again just after Christmas and I
    managed to get the car to a dealer to pull the diagnostic code. It
    indicated that the primary ignition coil was not firing correctly, and a
    Chrysler dealership local to my place of work tested the coil and 'found
    this to be faulty'. Having replaced the coil personally I am still
    observing the issue. I have suffered the failure a further three times,
    however now the service engine light does not illuminate (although the
    dealer may have masked this warning).

    Looking on the 'web it seems that it could be the camshaft / crankshaft
    sensor or the fuel filter. It seems the UK Chrysler dealerships I've
    tried (four local ones) don't know their arse from their elbow, and are
    insisting this is a head gasket issue - this is despite it being replaced
    2.5 years ago (40,000 miles) and is not showing any of the obvious signs of
    head gasket failure. As it seems down to myself and a local mechanic to
    track this infuriating fault down, I was hoping someone could advise as to
    how would I test for these faults (I don't have a 'scope handy at the
    minute)? Could the symptoms be caused by any other failure(s)?

    Also, can these parts be purchased on-line, locally within the UK (not from
    the dealerships)? Any part number of items discussed would be of interest
    (including modified crankshaft sensor), along with pricing. If I'm staring
    down the barrel of a suck-it-and-see run, I want to start with the cheaper
    parts. I do a regular motorway run of approximately an hour either side of
    the weekend, and the car can now be relied upon to stop on both the outbound
    and return journeys.

    Kindest regards,
    Chris (out-of-pocket and in desperation).
    Chris Bailes, Feb 18, 2004
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.