greg hessler
New member
I have a 2002 5.0l mcm Serial #OM336918 471 hours Maintenance kept to the letter. It will not run over 3000rpm We have done the following. Compression test Good Fuel pressure test good Scanned with diacom no codes all parameters in the game new plugs cap and rotor Replaced the exhaust water shutters Cleaned all debris from exhaust. Gas tank vent clean as well as anti siphon valve Fresh gas no Prop or drive changes I have not leak tested the engine yet but that is next.
I think somewhere, there may be a merc sercvice bulletin about the exhaust valves sucking up into the heads cannot find it
We changed a few things to just be SURE both fuel pumps and regulator and the map sensor
It still will not run over 3000rpm
HELP
I think somewhere, there may be a merc sercvice bulletin about the exhaust valves sucking up into the heads cannot find it
We changed a few things to just be SURE both fuel pumps and regulator and the map sensor
It still will not run over 3000rpm
HELP