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Discovery I Discuss here about the first version of Land Rover Discovery (Disco I) in this section.

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Old 07-12-2013, 01:44 AM   #1
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Join Date: Jul 2013
Age: 60
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Default 1997 Auto Disco won't crank

3.9 V8Australian delivery with 4 speed auto.

While working in some rough country a fortnight ago, I stopped the Discovery, went back and could not get it to crank. Hauled it out from where it was with a tractor and shifted it about 500 m to safe level ground.

I suspected a faulty safety interlock switch or wiring, so bypassed that and ran a wire to the solenoid, which enabled me to start the car beautifully.

Unfortunately even with the engine running there is a bad case of fail to proceed, and no movement in any gear - there is a slight noise if it revs are not allowed to drop right back before re engaging park, which sounds like the locking pawl scraping on a moving shaft.

Any suggestions?

The car does not owe a great deal and I can probably recoup my investment by scrapping it, but it is a handy vehicle so if is an easy fix, would like to try that first.
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Old 07-12-2013, 08:17 AM   #2
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Location: Liberty Twp, OH
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Check the transmission linkage to ensure that it is getting into gear. I would also check the transfer case linkage to make sure it isn't in neutral as well.
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When working with GEMS vehicles. Never try to locate a misfire by pulling plug leads off - pull the injector connector instead. Otherwise you can blow up the ECU.

Secondly never swap ECUs between vehicles to test them, because both vehicles and ECUs may stop working, and you'll have to have them all reset by a franchised LR dealer (ouch!).
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v8 auto discovery, won't crank, won't engage gears

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