Thread: Engine power loss/limp mode TDV8

Was there any exhaust smoke at the time and has the secondary turbo drain fix been done?

It sounds like a sticky primary turbo actuator.

Check the top intercooler hoses for splits.

Originally Posted by GregMilner

at 10.6l per 100. We weren't towing anything, although we were well loaded up with 4 adults and gear, sitting on 110 to 115 all the way, and there was a stiff cross wind,

That is pretty consistent with what I get out of my 07.

Same here. It drops back to 9lt/100 if I stick around the 100kmh

Originally Posted by Graeme

Was there any exhaust smoke at the time and has the secondary turbo drain fix been done?

It sounds like a sticky primary turbo actuator.

No smoke Graeme. Can't remember if the turbo drain fix has been done. It was in for some work at the dealer last year to fit some piping to fix a problem where the pan under the engine was collecting oil, but I can't remember if that was to do with the turbo. I'll get them to run some error code checks when we get back in a week or so. (Currently at Dirk Hartog Island, but left the car in Denham and came over by boat.)

Originally Posted by BigJon

That is pretty consistent with what I get out of my 07.

I normally get about 8.5 to 9 at 110kmh on the highway, with the 8 speed gearbox. I'm guessing a full load and stiff breeze might account for the extra use. But it could also have something to do with the turbo, if there is in fact a problem with it.

I generally do a quick calc (litres/odo km) when I fill up to work out what I've used per 100km. The vehicle computer always shows better economy by 0.5 to 1.0/100km. Given the speedo over reads the speed on all vehicles which might also slightly result in the odometer under reading, I'm wondering if the computer might be right.

According to the computer the best I've got from a hw run empty is 8.5/100km.

The mechanic recently put a dose of Revive engine/turbo/EGR cleaner through my motor after I complained of reduced fuel economy and a bit of black smoke on acceleration. I checked the upper IC hoses (replaced 18 mths ago) but couldn't find any sign of a split. After the treatment I t has noticeably more power and runs quieter. The economy seems better but I need to do a few tank fulls to be sure.

Originally Posted by rar110

Given the speedo over reads the speed on all vehicles which might also slightly result in the odometer under reading, I'm wondering if the computer might be right.

The CCF has individual settings for odometer, speedo and fuel consumption calculations. LR set the speedo to use the +3% +2 kph formula for our vehicles whereas the odometer is based on the recorded tyre size. I changed my D4 to use the +0% +2 kph alternate formula and set the tyre size to what is fitted, being slightly oversize on standard, with the result that the speedo reads 1 kph fast at 110 kph and the odometer still spot-on using the freeway 5 km checks. I also changed the fuel consumption factor from +7% to -6% to get it about right most of the time.