My car has now spent a day at two different garages being probed and poked to try and trace the problem.
As it stands, the car is seriously lacking power. This happened on the motorway whilst driving flat out. The car felt low on power prior to this tho. It had just had a full tank of fuel courtsey of shell. The power loss was sudden, and the engine made an induction noise and jolted as it happened.
I limped back from manchester in it, and since then its had new plugs and HT leads, new fuel filter, the tank run down and refilled with optimax and then had fuel system cleaner added to that.
Both mechanics compression tested it, one said all cylinders were around 200. The other said 3 were at 175, and one down at 135. Its had all the sensors and electrics checked, all fine with no error codes or sensor irregularties. Its been emissions tested, they were crazy results with a clear presence of unburnt fuel in the exhaust.
Fuel economy has gone to pot, 170miles from the full tank - most of it motorway mileage at around 60mph. Its slowly loosing water, with no apparent leaks - but ive not had a proper look for any.
This is a continuation of another thread, just thought i'd try and collate all the information so far.
https://www.fiatforum.com/showthread.php?t=14034 is the thread.
Neither mechanic has taken the head off (i wont let them.. i dont want to pay someone to do something i can do myself!), so cant confirm if the head gasket has gone, but doesnt sound too likely considering the compression test results. Tho i do get what rallycinq was saying.
At idle the exhaust is constanly going pip-pop-pip-pop-pip etc.
What would happen if the timing belt had slipped, would it run rough but still run - whats the easiest way i can check the timing.
Another theory is that the engine is coked up from when i had some bosch super4s in (the car was fine prior to these.. ) and that crap in the engine is now causing a valve to stick (hence the fuel cleaner stuff, is powerboost/carb cleaners worth trying too?). It passed the compressions test due to the engine turning so slowly, the valve(s) wasnt sticking but with higher rpm it starts sticking.
I think thats everything, bar the car still seems to have the same power it used to below around 3000rpm.
Its going to one last garage asap, and then im going to take the head off and have a look-see..
As it stands, the car is seriously lacking power. This happened on the motorway whilst driving flat out. The car felt low on power prior to this tho. It had just had a full tank of fuel courtsey of shell. The power loss was sudden, and the engine made an induction noise and jolted as it happened.
I limped back from manchester in it, and since then its had new plugs and HT leads, new fuel filter, the tank run down and refilled with optimax and then had fuel system cleaner added to that.
Both mechanics compression tested it, one said all cylinders were around 200. The other said 3 were at 175, and one down at 135. Its had all the sensors and electrics checked, all fine with no error codes or sensor irregularties. Its been emissions tested, they were crazy results with a clear presence of unburnt fuel in the exhaust.
Fuel economy has gone to pot, 170miles from the full tank - most of it motorway mileage at around 60mph. Its slowly loosing water, with no apparent leaks - but ive not had a proper look for any.
This is a continuation of another thread, just thought i'd try and collate all the information so far.
https://www.fiatforum.com/showthread.php?t=14034 is the thread.
Neither mechanic has taken the head off (i wont let them.. i dont want to pay someone to do something i can do myself!), so cant confirm if the head gasket has gone, but doesnt sound too likely considering the compression test results. Tho i do get what rallycinq was saying.
At idle the exhaust is constanly going pip-pop-pip-pop-pip etc.
What would happen if the timing belt had slipped, would it run rough but still run - whats the easiest way i can check the timing.
Another theory is that the engine is coked up from when i had some bosch super4s in (the car was fine prior to these.. ) and that crap in the engine is now causing a valve to stick (hence the fuel cleaner stuff, is powerboost/carb cleaners worth trying too?). It passed the compressions test due to the engine turning so slowly, the valve(s) wasnt sticking but with higher rpm it starts sticking.
I think thats everything, bar the car still seems to have the same power it used to below around 3000rpm.
Its going to one last garage asap, and then im going to take the head off and have a look-see..
you tried new one of them yet?
