If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
156 engine running poor at about 2000 rpm
Since a few months the engine of my 156 SW 1.6 is running poor from 1750 to
2500 rpm. If you try to run it at an constant rpm, the engine is not running smooth (NL: de motor houdt in) and at idle the rpm varies from 800 upto 1300. The dealer resetted the motor management computer, but without positive result. Now he suggest to replace the electromotor (NL: stappenmotor) which controls the throttle. The dealer said the had a good result on an other 156, which had the same problem. This electromotor cost about 100 euro and mounting will cost another 50 euro. Can anybody give my advise: Is this the cure for the problem, or are there other options? Thanks in advance, Guus Obelink 156 1.6 TS SW 2000 |
Ads |
#2
|
|||
|
|||
If it's the "stappenmotor" (variator) you will also hear a ticking sound
like when the tappets (hydrauclische klepstorters) do not get enough oil pressure. The "normal" sound of the tappets will normally only occur just after starting the engine and willb be gone in a few seconds as soon as the oil pressure has been built up. When the variotor is the reason it will not go away with the oil pressure build up. Defective variators used to be a typical FIAT/Alfa problem which came up in the period 1999/2000 and has been solved in new engines built from June 2000. Problem was a sub-supplier delivering faulty (bad quality) variators. In those days even many cars had the variator changed more than once as they replaced a defective one by a similar one with the same bad quality. Therefor guarantee!!! But with a 4 year old car???? If you don't have this sound, it looks questionable to me. I would go for 2 different options. Option 1 Specially the hunting rev's at idle (= closed butterfly valve in the airflow) point to dirt build up in the outer circumference of the butterfly valve of the air inlet Option 2 Check the lambda probe in the catalist converter -- Ciao from Holland AlfistaGJ (Gert-Jan) Alfa red 156 SW 1.8 Madeno tuned (2000) Golden Montreal 1428700 (1973/4) "Guus Obelink" > schreef in bericht ... > Since a few months the engine of my 156 SW 1.6 is running poor from 1750 to > 2500 rpm. If you try to run it at an constant rpm, the engine is not running > smooth (NL: de motor houdt in) and at idle the rpm varies from 800 upto > 1300. > The dealer resetted the motor management computer, but without positive > result. Now he suggest to replace the electromotor (NL: stappenmotor) which > controls the throttle. The dealer said the had a good result on an other > 156, which had the same problem. This electromotor cost about 100 euro and > mounting will cost another 50 euro. > Can anybody give my advise: Is this the cure for the problem, or are there > other options? > > Thanks in advance, > > Guus Obelink > 156 1.6 TS SW 2000 > > > |
#3
|
|||
|
|||
"Guus Obelink" > wrote in message >...
> The dealer resetted the motor management computer, but without positive > result. Now he suggest to replace the electromotor (NL: stappenmotor) which > controls the throttle. The dealer said the had a good result on an other > 156, which had the same problem. This electromotor cost about 100 euro and > mounting will cost another 50 euro. I had this motor replaced on a 146 with a similar sounding problem (after the garage had replaced the Lamda sensor twice and charged me for that work) and it solved the problem. -- Mick |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
156 Engine Under Tray With Air Scoop. | Zathras | Alfa Romeo | 2 | September 13th 04 08:57 PM |
engine stall during ride | ton | Alfa Romeo | 0 | June 12th 04 09:33 PM |