My 1989 230E is hesitating because it is not getting any fuel to #3 cylinder. I know this because there is no change in rpm when I pull the spark plug wire on #3 cylinder.

I tried changing the spark plug but there is no change. Then I exchanged the #2 and @3 fuel lines to see if the fuel distibutor was a problem but that also didn't change anything. Now I concluded that it must be a fuel injector problem.

The fuel injector seems to be very loosely installed and it is turning free in both directions. I have no experience on fuel injectors. Should I disconnect the fuel line to the injector and then pull it out to remove it ?

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1989 230E, 8v, 166.000 km, updated to 94/95 trunk & hood
2002 Daewoo Nexia 50.000 km
Sold:
1987 VW Jetta GLE 16V, Recaro seats
1982 Volvo 240 DL (lovely car!)
and few more american cars.