Some time last year (or maybe 2011?) I bought a WD21 Terrano, TD27T, automatic, off eBay. It sat in my yard for a while waiting for a roadworthy and some love; the previous owner had sold it in frustration at not being able to fix the auto gearbox, which has some really strange behaviour. With the TPS plugged in, it was completely clueless, flaring really badly between gears and never locking the TC in OD. With the TPS unplugged, it shifts at the low throttle point without flaring (very firm in fact) but it locks the TC at 60km/h, which is inconvenient without much power from the engine. Accelerating onto freeways is difficult. It almost seems like an issue with the line pressure solenoid, so thinking I was clever I swapped the box out for another, which is a shit job without a hoist.
It didn't change anything. I had some big $$$ problems with my D21 so I got the Terrano roadworthy and registered and towed a bunch of crap with it while I moved house, including my old D21:
Whilst towing one of the less heavy loads (go figure), it overheated randomly. That was a problem that would resurface later. I swapped the TCU and "ECU" (really just an EGR controller that also feeds RPM signal to the TCU) with other units, still no change to the behaviour.
I put some D22 wheels and tyres on, they rub the chassis on the front pretty bad at full lock. I've been living with it.
I figured out the water pump would leak when the system was at low pressure and sitting for a while (hence the random overheating; leave it for a while and it has no water), plus I had never heard the fan engage fully so I replaced the water pump/clutch assembly with a no name eBay special. None of the bolts were seized! The block looks alright:
It didn't change anything. I had some big $$$ problems with my D21 so I got the Terrano roadworthy and registered and towed a bunch of crap with it while I moved house, including my old D21:
Whilst towing one of the less heavy loads (go figure), it overheated randomly. That was a problem that would resurface later. I swapped the TCU and "ECU" (really just an EGR controller that also feeds RPM signal to the TCU) with other units, still no change to the behaviour.
I put some D22 wheels and tyres on, they rub the chassis on the front pretty bad at full lock. I've been living with it.
I figured out the water pump would leak when the system was at low pressure and sitting for a while (hence the random overheating; leave it for a while and it has no water), plus I had never heard the fan engage fully so I replaced the water pump/clutch assembly with a no name eBay special. None of the bolts were seized! The block looks alright: