2.0L SOHC 4G63. Fuel pump is ok when the car is level and motor running. When the car is on a hill with nose down,motor running, petrol gushes out of what looks like a factory hole on the side of the mechanical fuel pump. Hole is about 8mm. Is the pump munted!
toybox,
Apr 2, 6:19pm
Sounds like it, had to replace my one once on my 81 GLXpetrol was pouring out of it.
motorway,
Apr 2, 6:31pm
Yes, common fault on them.
franc123,
Apr 2, 7:41pm
they either pee out petrol or pee out oil, in both cases pump replacement is the only answer.A little odd that it only does it on a slope though!
tuttyclan,
Apr 2, 7:56pm
Common Fault on my 1982 Sigma 1600 Normally my one bleeds oil out of the pump. Must of done a few or more them now in 22 years of ownership. See my profile.
muzz67,
Apr 3, 11:15am
Go on Tutts, whats the milage now!
toybox,
Apr 3, 12:05pm
Hiya Robin, I still havent located that airdam, one place left to look before I give up.
tuttyclan,
Apr 3, 4:21pm
299560 km
tuttyclan,
Apr 3, 4:23pm
No problemSteve.
bjdw,
Apr 3, 4:38pm
I could solve your problem by taking this car off your hands.I won't charge you anything.
mike107,
Apr 3, 9:02pm
Tutty. My 83 GLX Sigma has done 153,000Km. New fuel pump today! All fixed.
tuttyclan,
Apr 17, 8:45am
A few years ago my Dad had a 1982 2000 GLX Manual.The 2 litre definatly had a little more power over the 1600.You must be enjoying it good km too!
bjmh,
Apr 17, 8:50am
it might pay to change your engine oil and filter,most of mitzi's that i have had to replace fuel pumps on,also leak petrol into engine cavity.then they do weird things like idling rough and oil level rising.
hamcouple4fun,
May 4, 3:50pm
check the main in line and the return i bought a new pump from mitsi didnt read the instructions the new pump changed the old pump the return was the top and the return was the bottom pipe so i just installed the pump the same way all good into going up hill and going around left turns so cleaned tank new lines rebuilt carb still the same then changed the fuel lines and the problim was gone
phillip.weston,
May 4, 5:26pm
car is long sold.
tuttyclan,
May 4, 7:24pm
Not yet its still on 299560 km.Car is on exemption at the moment as I have two older Vauxhalls as well and I register and wof and drive one at a time.In another three months I hope to get the Sigma over its 300,000km mark.
tuttyclan,
Jan 13, 7:18pm
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