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Post by bcubed on Aug 21, 2007 16:22:27 GMT 11
Hi There all, heres one for you thats got me well and truly stumped. 1990 Bighorn 4jb1 TB automatic has new $480 Alternator and engine relay. When I got given this vehicle it had a dead battery and no diesel so I got another battery and some diesel pumped the fuel pump a few times and away she went. Once I got it home I noticed no stop lights, checked fuse it was blown replaced fuse blew again I then noticed that the blue fuseable link from alternator had burnt through replaced fuse link, alternator (as it was stuffed over charging) and engine relay. Runs sweet as now, more power, better breaks due to new vacuum pump, the auto even seems to be better. However still blowing stop lamp fuses. Done a wire trace from back to front looking for shorts found one from where they had cut stereo out and was shorting on to the steel stereo casing in dash. Thought I had found it replaced STP/LMP fuse went for a drive and after 5 mins fuse blew again. Dose anyone know if there is perhaps a break light relay?  ?? |
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Post by morpheus on Sept 7, 2007 20:20:08 GMT 11
Are the bulbs the right wattage for the fuse?
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Post by bcubed on Sept 10, 2007 23:25:05 GMT 11
Hi thanks for your reply, yep thats all good, i narrowed it down to the gearbox seems to blow when put into reverse. have disconected reverse beeper and all wires to center consol its not there because none of it is hooked up and it still blows have tried new break switch its not that. All tail lights wireing etc has been taken out and checked for shorts or breakages none its got me stuffed gonna pay for the auto sparky to look over it for an hour before it dose my head in.
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Post by geeves on Sept 11, 2007 7:10:04 GMT 11
I havent got the diagrame handy but are the reverse lights fed from the same fuse. Do the reverse lights work before and after ther fuse blows?
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beau
Isuzu Baby
green just doesn't cut it
Posts: 37
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Post by beau on Sept 27, 2007 16:25:16 GMT 11
stick your head under the truck and have a look at the hydrostatic switch which tells the electronics when the truck is put in reverse ( it will look alot like a bung but have two wires coming out of it). in the event of a gearbox/engine removal/swap or overhaul or negotiating rough terrain will some times cause damage to the loom. this is more common than you may think.
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Post by bcubed on Oct 30, 2007 16:41:33 GMT 11
Hi thanks for all the replys. Sparky couldnt find it ened up running new wire from switch to the back loom I suppose. Dose the maual model have the hydrostatic switch aswell? As I have two of these beasts now an auto and a maual I must say the auto dose feel a bit smoother than the stick. But what they hell I luv em.
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