weird ass problem...
had the car for about 1.5 years and just recently have experienced my first 2 real problems
are they related?
NOTE: ITS AN AUTO!
1) noticed that sometimes when the car is v.cold (ie just leaving my street in the morning) when i am going v.slow (<30km/h) and i brake harder than normal, somtimes the car loses revs and then rises again, other times it stalls
i was thinking a leak in a hose going to the brake master cylinder??
2) more serious problem.
- had been driving for 45mins so car is definately at normal operating temp.
- At one point i am in stop/start traffic and just having to let off the brake and back on again its going that slow
- All of a sudden... car stalls (wtf?!). put it into neutral and re-start it... car stalls!
- so i turn on the hazards and let it sit for 10secs and start it again then give it a quick and small rev.
- now the car does th freikiest thing and revs to 2000rpm then drops to 1000rpm then revs ... drops... revs ... drops. happens about 5 times then car stalls again. (nb i'm not anywhere near the accelerator at this point)
- i let the car sit for 30secs (mind you its peak-hour traffic!)
- start it again and problem goes away... ????
- drive to work and go to park and the car stalls. i roll it into the park and walk off thinking it might go away when i come back (its called 'wishful thinking mechanical engineering'!)
- end of the day and i drive home from work and since then (2 days ago) the problem has never shown its ugly face!
what the hell is going on?
that night i cleaned the AFM and oxygen sensor and also re-set the ECU. not sure if it helped but maybe.
other possible causes i was thinking of:
- AAC valve
- AFM
- a plug somewhere that's loose
- leak in intake hose
keeping in mind this is an auto does anyone have any ideas?
and are the two problems possible related?
cheers,
Warren.