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Posted by Kip on 11/2/2006, 1:23 pm, in reply to "Re: help! 1995 land rover disco 3.9" --Previous Message--
: I would start by doing a compression check on
: the engine. Then I would check for a good
: spark - you should be able to get nearly a
: half inch spark when you crank the engine
: and hold a plug wire near to the engine
: block. A weak spark will not fire the plugs
: properly. A weak spark can be caused by a
: bad ignition module, the coil, the HT leads
: including the lead from the coil to the
: dizzy, the dizzy cap and the ROTOR! I just
: spent the day diagnosing a poor spark in a
: RR. Turned out it had a bad or the wrong
: rotor!
: Good Luck!
:
: --Previous Message--
: I have a 1995 land rover discovery with a
: 3.9
: engine.It will not start half the time.It
: keeps fouling spark plugs.And we have to
: change the oil because we are getting fuel
: in the oil trying to start it after so many
: times.We have changed the
: injectors,dis.cap,mass air flow
: meter,starter,and a lot of spark plugs.When
: it does start it is chugging and sounds very
: rough.Then it dies and will not start.So you
: can not drive it any where because it will
: not go very far and will not start again.We
: thought we had bad fuel.Then we had the fuel
: pressure checked.It was fine.The person we
: bought it from put a water pump on it.We
: have only driven it a couple of months
: before this started happening.And now it has
: been parked over a year.I can not find
: anyone who can repair landrovers.The dealer
: is over 100 miles away.Please help if you
: can tell what to try next.Or if you had this
: problem and what you had to do.thanks.
:
:
:
Wow, had the SAME thing happen. Replaced plugs, wires, cap, rotor, checked Fuel Press regulator, compression test OK, it actually turned out to be the coil. I was able to get spark, but new coil solved it. If your coil is going out, you may see a spark and not notice that it is weak. 40-60 bucks should get you going.
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