1990 Cherokee hard to crank

Discussion in 'General Motoring' started by Jeff Falkiner, Oct 19, 2004.

  1. A good buddy recently bought a 1990 Cherokee Limited with the inline 6.
    Every time he tries to start it after it's sat for awhile it takes a looong
    time to finally fire. Time is 8-10 seconds. With winter coming, he's
    concerned with keeping enough battery capacity available on cold Canadian
    winter mornings.

    Any quick things we should check out over a couple of Canadian beers? The
    truck has just over 50K miles and is otherwise in fantastic shape.

    Jeff Falkiner
    Ontario, Canada
    Jeff Falkiner, Oct 19, 2004
  2. Check to see that the fuel system remains pressurised after a long
    Daniel J. Stern, Oct 20, 2004
  3. Makes a lot of sense to me. Now, I've never owned a Jeep 4.0 litre, so can
    anyone elighten me as to how the fuel system on that engine is set up? What
    are the main areas I need to troubleshoot? I'm assuming that there is a
    potentially faulty fuel pressure regulator/fuel pump/return valve I should
    be looking for?

    Thanks for any help.

    Jeff Falkiner
    Jeff Falkiner, Oct 22, 2004
  4. Jeff Falkiner

    Snow Guest

    It should make sense by now, you have been told all that from the jeep news
    group. :). Have your buddy go out and buy a manual for the J**P. A full
    factory service manual is best but the Haynes or Chilton manuals will give a
    pretty overview of most systems.

    Snow, Oct 22, 2004
  5. Just for the record, I posted this note BEFORE my request for assistance
    from the Jeep group. I thought that the fine folks there might also be a
    good source of knowledge on the problem, just didn't think of them first
    because I didn't subsrcibe to that group until yesterday :). Not trying to
    be a cross-posting PITA, just using usenet for what it is intended for:
    exchange of information!

    Jeff Falkiner
    Jeff Falkiner, Oct 23, 2004
  6. Jeff Falkiner

    Snow Guest

    No problem Jeff. 8-10 sec. crank time seems pretty close to normal my 93
    takes from 6-7 sec. on a good day. Check the check valve and rail pressure
    like others have said and suggest getting a manual factory is the best but

    Snow, Oct 24, 2004
  7. Jeff Falkiner

    BeeP Guest

    Another resource for you -- rec.autos.makers.jeep+willys -- newsgroup.
    Good luck.
    BeeP, Nov 1, 2004
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