Please help, I can not find malfunction, under loading, there is a knock in the engine (detonation), self-diagnostics does not give mistakes, except for "12" and "55". Gauges have been replaced almost all, the chamber of combustion is cleared, muffled EGR, the catalyst is cut out, Oil in norm, transmission behaves normally. Nothing has helped.
On the warm engine, at speed 20-60 or at the included conditioner, by small pressing an accelerator there is a repeated knock.
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Dodge Stratus-95, 2,4 , 41TE.
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are you SURE it's det and not a bad bushing or motor mount? if it is det when was the last time the car had a tune up (plugs and filters, atx filter?)? if recent, was it after the tune up the issue started? did you check the chambers with a borescope or pull the head?
Montof the engine and transmission recently have replaced.
Any tuning did not do.
Oil, liquids and filters I change constantly, has more recently changed.
The detonation has appeared for a long time (1 one year ago).
Borescopelooked - all purely, (recently washed out injector-system).
Don't pull the head.
Tried to pass on98-gasoline - disappears, but in 2 days comes back.
Behaviour of the engine, as with too early ignition.
When I include the conditioner - the machine hardly goes, falling of force when 4 persons - too sit down.
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Sorry for my bed English.
Detonation on 2,4 Engine...
