Question about 2000 Alfa Romeo 156
I have got the engine oil pressure warning message coming on when ever the car is stationary & facing up hill or when I make a right turn.
Also for about the past week there has been a "grumbling noise" a bit like pebbles grinding together coming from the gearbox (its a 5 speed manual) but only in the first three gears, I am thinking its the lay shaft, does this mean i'm looking at having to buy a new engine & gearbox? The car has done only 46600 miles & is a 2004 model!
I would be grateful for your help & advice
Oil pressure sending unit fail often and give this false indication, but because the engine will be severely damaged if the pressure is really low so hook up a manual oil pressure test gage to see what the pressure is, if it is within specs replace the oil pressure sending unit.
Posted on Apr 11, 2017
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Posted on Jan 02, 2017
SOURCE: selespeed gearbox fault
Hi, it might be worth getting your gear selector checked as these have a nylon/plastic ball at the bottom now if this has worn down then when you try selecting a gear it will cause the problem your having.(its under neath the gearstick before it links to the two selector rods so check this.)
Also worth checking alot of cars where the two rods come from the selector and then their is two rods going to the gear box one of these is fixed and cant be adjusted but the other rod can be adjusted and its often the case that this adjustment can take up the play and solve your problem.
The problem with this is that it can be adjusted forwards and backwards it slides when you undo the bolt that goes through it so make sure you can mark exactly where the selector is where you can adjust it so that you can set it back their if it makes it worse or no differance.
If yours can be adjusted then make sure you mark where it is now then just move it a small bit at a time one way and then give it a try if no differance then move it a bit more if it gets worse then put it back where it was originally then try going the other way see if it makes any differance if not then it wont be adjustment problem.
If neither of these are problem then the chances are the gears have stripped and this would give you the problem your having as the faster you go the harder it is for the teeth to locate on the correct gear in the box.
As for stripping the box it isnt really worth doing as the parts would be expensive and would cost as much as a second hand gear box.
The best option would be a reconditioned gear box as you know that it has be rebuilt with any new parts needed and you should also get some warranty on it which is always a bonus.
Are you sure the clutch is ok test this by having the car running and at a standstill with the hand brake on put car into 2nd gear and with the handbrake on gently let the clutch up slowly and see if it feels like its slipping if the clutch is ok then the car will stall this is what will happen if the clutch is ok.
Let me know how you get on or if you have any problems or questions and ill assist you the best i can ok.
Posted on May 27, 2008
It sounds to me like the clutch is not working properly.
This may be an adjustment problem or signs of a worn clutch.
Try selecting 5th gear and with the handbrake on let out the clutch, if the engine stalls then the clutch is probably ok and may just need adjusted. If the engine doesn't stall then your clutch is shot and unfortunately its gearbox back out to fit a new clutch.
Posted on Jan 22, 2009
hi have a 2000 2l 156 selespeed problem with gearbox is light comes on dash and gears won't select have replaced the gearbox pump at great expense but has now stopped working again can any one advise if this could be other issue
Posted on Aug 17, 2009
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