Thread: Discovery 2 climbing steep hill off road problem

4L and 4H makes no sense on a D2 as they are a permanent 4wd. Your choices are High or Low range with CDL locked or unlocked.

So you had difficulty driving up a steep hill in low with the cdl unlocked or locked?

Was the motor rev'ing out when you had the foot down? Was Traction control operating?

Just trying to ascertain if the issue was a lack of power, excessive slip in the auto or lack of grip and Traction control bringing the D2 to a halt.

cheers
Paul

my guess is traction control shut you down

I'm betting you weren't in low range. The lever needs to be moved forwards for low range & I'm guessing you just moved it sideways (to engage the CDL).

Originally Posted by OffTrack

4L and 4H makes no sense on a D2 as they are a permanent 4wd.

They still make sense (although they do imply that there is an alternative to being in 4). 2L or 2H would make no sense on the D2 as they are permanent 4WD and therefore always in 4. But 4L and 4H are still correct - as the vehicle is in 4WD (it has to be as it's permanent) and either High or Low.


You say the vehicle is automatic. I know when in low range mode, you can put the automatic into manual mode - does this lock it into high gears - could you have locked it into too high a gear? (note this is just a train of thought as I'm not sure how the manual mode goes).

Did the vehicle stall at all?

When the vehicle speed was slowing down, what was the engine speed (rpm) like? Was the engine still reving up or...? If so, could be a fault with the torque converter maybe? Or maybe low on transmission fluid (when the vehicle is on the incline the fluid would run back towards the rear)?

Your MAF could be playing up. Try it again with the MAF disconnected.

I once had a problem like this and it ended up that that the plastic air intake duct to the manifold had come away, which meant air was being sucked in that wasn't detected by the MAF.

The effect was therefore equivalent to a faulty MAF.


It was only under stress, i.e. going up a steep hill, that the problem was noticeable.

Once the duct was clamped back in place, all was okay.

Hi all, I really appreciate all the feedback thanks. I will try to clarify all your questions,

I was definitely in low.
The CDL was not engaged as the red lit diff lock symbol on the dash wasn't on. The engine was staying at around 1500 rpm even though I had my foot flat. It wasn't over reving.
I moved the auto shifter from drive to first and this didn't help
The wheels weren't slipping (I couldn't feel them slipping)

It felt like the car just didn't want to go any faster than a crawl (it stopped at one stage and that is when i stopped completly and then tried to accelerate again and thats when it started to crawl slowly again. Again, the engine didn't go over 1500 rpm

It did feel like the traction control was preventing torque as it didn't let the engine rev higher than 1500 rpm. The TC lights weren't on and there was no bells or ding noises saying it had come on.

I just thought the D2 would have been more capable as I was with a mate who had a land cruiser and he made it up the hill in low gear and no diff lock activated with ease.

Once again, I appreciate the help and feedback and any suggestion on possible issues with the car I will get it looked at when it goes in for service this month.

Cheers
Tim

You'd know if the TC was running - dash light would come on and you'll hear the abs pump running and solenoid valves clattering. I'd cross that off the list of suspects.

The lack of throttle response looks like the most odd behavior. I'm no expert on the V8's but people occasionally have issues with throttle pedal on the Td5 so I wouldn't be surprised if this might be similar. There could be other possibilities but the V8 gurus might have a better idea.

If you can track down some one close to you with a diagnostic tool unlocked for the v8 it would pay to get the codes for the engine and auto checked.

If you are anywhere near Brunswick I'd be able check the codes for you.

Cheers
Paul

Could low transition fluid cause this??