hey gents !
like stated in another topic i deal with a stalling issue on idle at my 2010 merc 5.0 MPI which seems to be common for a bad IAC valve. before i buy a new one i would like to hear your opinions if the symptoms really fir for the IAC or if i have another issue :
-if starts straight away cold or warm
-it stalls only at idle , when increasing rpm it keeps going
-it stalls when started cold after some minutes, after it warmed up a little and the engine starts to reduce rpm,s to 600 at idle
-after stall ( when warmed up )it restarts but stalls after few seconds again
-i removed the small filter/muffler from the throttle body idle air system ( i do not mean the flame arrestor !!) and hear a hissing sound , does that mean the iac valve opens /works ???
-the valve looks brand new, no dirt etc, cannot say if the electrical coil works
-no engine warnings by smartcraft
is it typical for the iac ???
any hints are very appreciated when some of you have been there.
best regards
like stated in another topic i deal with a stalling issue on idle at my 2010 merc 5.0 MPI which seems to be common for a bad IAC valve. before i buy a new one i would like to hear your opinions if the symptoms really fir for the IAC or if i have another issue :
-if starts straight away cold or warm
-it stalls only at idle , when increasing rpm it keeps going
-it stalls when started cold after some minutes, after it warmed up a little and the engine starts to reduce rpm,s to 600 at idle
-after stall ( when warmed up )it restarts but stalls after few seconds again
-i removed the small filter/muffler from the throttle body idle air system ( i do not mean the flame arrestor !!) and hear a hissing sound , does that mean the iac valve opens /works ???
-the valve looks brand new, no dirt etc, cannot say if the electrical coil works
-no engine warnings by smartcraft
is it typical for the iac ???
any hints are very appreciated when some of you have been there.
best regards
