Rear diff noisy when bought.
Passenger heated seat not working.
Air con not working.
Mysterious misfire occasionally.
The rear diff (£90 s/h and 8 hours - I did it myself) and heated seat (FREE - a broken wire) have been fixed, but the air con (£1006 quote) doesn't stand a chance, according to the good lady.
This is my second Senator, the first being a 12v ex Lincs police job with 260,000 miles on the clock (expired after driving through flood water - the air intake is low). I'm hooked and my current one is a direct replacement, big thanks to my local Vauxhall dealer who had it round the back going for a song.
Huge amount of car for little money.
It's quite good fun to switch the digital dash over to KPH and see how far over 200 you can get ;-) (on the autobahns of course).
Mechanical parts appear to be reasonably priced, but trim parts are expensive.
You might want to check the airflowmeter regarding the misfire.
I had a similar problem with my Carlton GSI 12v and it took quite a while to find the source of the problem.
I couldn't find a nice 24v for a decent price in time when I needed to part with my 12v, so I got a bargain Citroen XM 2.0i now. Nice car but seriously lacking torque and horsepower compared to the GSI.
Best
Moritz
gsi3000.com.
I've got a 1993 2.6, I recently had the aircon fixed, (new pump, radiator, new gas conversion etc, all at avery reasonable price by a company in Witney Oxfordshire. If you want more info EMail me at steve_elaine@wright879.fsnet.co.uk.
I had a similar intermittent misfire. Traced to loose spark plugs, split breather pipe between cam cover and throttle body and one partially detached plug lead. Good luck.