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  1. #1
    Join Date
    May 2004
    Location
    Sunshine Coast Queensland
    Age
    49
    Posts
    1,272

    Default Issue with an 85 Laser

    Hey Guys,
    My neighbour has an old 85 Laser GHIA fuel injected - she is doing it hard so hoping for some advice to help her out.
    Last night the engine started losing power, every so often the revs would drop as if someone took their foot off the throttle, then it would pic straight back up again.
    The gauges and fluids are all normal, its gotta be either electrical or fuel system - I've had her blast the engine bay with WD40 in case it's just damp electrics.
    I'm hoping someone here has experienced a similiar problem and can offer some experience.
    Cheers

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  3. #2
    Join Date
    Feb 2015
    Location
    Strathalbyn South Australia
    Posts
    870

    Default

    I would be looking at the fuel filter in the petrol tank as a possibility, tanks can get full of crud over time and clog the filter. It could also be injectors need a clean/replacement. Has a fuel cleaner in the tank been tried? Buy a bottle of it and try, could help. When was the last time spark plugs were changed?


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  4. #3
    Join Date
    Dec 2005
    Location
    South Australia
    Posts
    3,304

    Default

    Does it have a throttle motor, if so it could the problem, ED falcons had those symptoms cause was a faulty throttle motor

  5. #4
    Join Date
    Nov 2006
    Location
    Melbourne
    Age
    60
    Posts
    782

    Default

    A few years ago I had a similar sounding problem on a Citroen. One of the spark plugs had worked loose. Worth checking.
    TM

  6. #5
    Join Date
    May 2011
    Location
    Murray Bridge SA
    Age
    67
    Posts
    3,267

    Default

    I'd be inclined to change the fuel filter. Going by the symptoms given, I'm 99% sure that's the problem.
    Could also be the spark plug leads, check out the bases, where it goes into the plugs, had that happen on my Corolla.
    Let us know how you get on, please??
    Kryn
    To grow old is mandatory, growing up is optional.

  7. #6
    Join Date
    Jan 2003
    Location
    Osaka
    Posts
    810

    Default

    My first thought was surging like that sounds like fuel starvation which = fuel filter. "Doing it hard" tends to be synonymous with "never takes car for regular servicing", so I think that would be the first thing to check. Air filter is the next on the list. Beyond that, a good spannerman.
    Semtex fixes all

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