m1dge
Active Member
Please bear with me on this thread as I try to explain what has happened......
First off I have a 1995 Discovery 1 automatic. It's a 3.9 v8i petrol with approx 69k on the clock.
Been running it for a few months now but ive never been off road with it. So yesterday, whlist driving on a long quite stretch of road, I decided to engage the Hi-Lo box and diff lock to keep them running. Went into Lo box fine, went into Lo box with diff on no problem too. However, when I went from Lo diff engaged down to Hi box it made an allmighty bang and wouldn't drive. I then took the diff lock off so I was just in standard Hi box mode but it still wouldn't drive. When moved back into Lo box I could continue driving but whenever I went into Hi box and tried to drive I couldnt (just revving when I accelerated)
After a few attempts of moving forward in Lo box then going back into Hi box it finally sorted itself out and I continued home.
Also this morning I went to work, approx 4 miles, with no problems and left the Hi-Lo box and diff alone and thought nothing more of it.
However, after work the car didn't seem to be driving as it usually does, and felt very sluggish. I also burned a lot more fuel then normal!
On average I get 40 miles from every notch on the petrol gauge, so when I left work the needle was bang on the quarter tank mark, but 15 miles later the needle is touching the red empty tank area.
So once back home again I had another play with Hi-Lo box and the diff and I got the same results as last night. Drives fine in Lo but when switching back into Hi box it doesn't engage. Finally after driving a few meters forward in Lo, Hi box engages.
So my two concerns are why have I burnt so much fuel in such short milage and why doesn't Hi box engage first time when coming out of Lo box?
Could it be possible that after first testing the Hi-Lo box last night, ive not fully moved back into Hi box hence why I used so much fuel on a realitivly short trip?
Would it even make a difference to the amount of fuel used travelling in Hi or Lo box or with diff engaged?
Thanks for any help you can give regarding this situation it is much appreciated!!
First off I have a 1995 Discovery 1 automatic. It's a 3.9 v8i petrol with approx 69k on the clock.
Been running it for a few months now but ive never been off road with it. So yesterday, whlist driving on a long quite stretch of road, I decided to engage the Hi-Lo box and diff lock to keep them running. Went into Lo box fine, went into Lo box with diff on no problem too. However, when I went from Lo diff engaged down to Hi box it made an allmighty bang and wouldn't drive. I then took the diff lock off so I was just in standard Hi box mode but it still wouldn't drive. When moved back into Lo box I could continue driving but whenever I went into Hi box and tried to drive I couldnt (just revving when I accelerated)
After a few attempts of moving forward in Lo box then going back into Hi box it finally sorted itself out and I continued home.
Also this morning I went to work, approx 4 miles, with no problems and left the Hi-Lo box and diff alone and thought nothing more of it.
However, after work the car didn't seem to be driving as it usually does, and felt very sluggish. I also burned a lot more fuel then normal!
On average I get 40 miles from every notch on the petrol gauge, so when I left work the needle was bang on the quarter tank mark, but 15 miles later the needle is touching the red empty tank area.
So once back home again I had another play with Hi-Lo box and the diff and I got the same results as last night. Drives fine in Lo but when switching back into Hi box it doesn't engage. Finally after driving a few meters forward in Lo, Hi box engages.
So my two concerns are why have I burnt so much fuel in such short milage and why doesn't Hi box engage first time when coming out of Lo box?
Could it be possible that after first testing the Hi-Lo box last night, ive not fully moved back into Hi box hence why I used so much fuel on a realitivly short trip?
Would it even make a difference to the amount of fuel used travelling in Hi or Lo box or with diff engaged?
Thanks for any help you can give regarding this situation it is much appreciated!!