Could it have been Stuart Thomson who typed:
|| Hi All
|| I have a 1998 Audi A4 TDI which has been chipped from 110bhp to about
|| 140bhp with no problems for a couple of months until now.
|| Last weekend I was towing our caravan for the first time. On the
|| outward journey the car pulled the caravan like a train. There was
|| loads off power and tourque, in fact on the motorway I didn't have to
|| change out of fifth gear.
|| The homeward journey was the same for about the first 50 miles then
|| all of a sudden the was a very noticeable drop in power. This
|| happened whilst overtaking lorries up a long up hill drag. The
|| weather was hot (well hot for England) about 21c. I am no mechanic
|| but my guess was that the turbo had gone?? There wasn't any extra
|| noise, just a big drop in power. When we got home I left the car
|| standing for about two hours then I took it for a spin (without the
|| caravan) and everything seemed to be fine, power back as normal. So
|| my question is A. What happened? B. Do turbos stop working when they
|| get too hot? C. Do turbos have a thermal cut out?
|| Any advice would be much appreciated.
|| Many thanks
This might sound too simplistic! but I have been called out to a number of
breakdowns with the same symptoms as yourself, one turned out to be the
caravan hub had started to seize and the car in trying to tow it had
destroyed the clutch!!! and I had one where the car was OK but the caravan
needed a new axle, Both drivers thought it was the car losing power..
Another strange one was a vauxhall 2L injection which had gone into limp
mode, turned out to be a short on the caravan wiring, which caused a voltage
drop on the car causing the ECU to see a problem, a new plug and the ecu
reset and off he went...
try the simple solutions first, when was the last time we stripped something
down to find it could have been cured in 30 seconds! (actually, for me last
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