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hesitation above 4000 rpm 700 88

posted by  someone claiming to be christian ock on  Wed Nov 22 10:10 CST 2000 [RELATED]

hi,

my 745 (B230F, 315000km) is running just fine up to 4000 or 4200 rpm; then, it rather suddenly develops a very noticeable hesitation, no matter if it's in first gear or in fourth (I didn't go fast enough yet to test if it also happens in fifth :-), so it's impossible to reach 5000 rpm (and the land of maximum power).

the interesting thing is that, besides a bit of a rough idle, it runs just fine, no problem with low end power or highway cruise at 160 kph. fuel consumption also seems normal (8.5 - 10 l/100km).

my mechanic test drove it and said he had no idea about the cause, but that he thinks it is running too lean at that point.

any ideas?

ciao,

cm.





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New hesitation above 4000 rpm [700][88]
posted by  someone claiming to be christian ock  on Wed Nov 22 10:10 CST 2000 >


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