hesitation problem
1990 Mercedes-Benz 560SEL
Gasoline |
View questions for: All Mercedes-Benz | 560SEL | 1990 560SEL |
At times, when accelerating, the economy gauge will go up but the RPM's do not move and the car hesitates.Only lasts a couple secods and resolves it self. Fuel filters have been changed within the past 12 months.Any thoughts on issues?
When was the last time you had your fuel injection system 'dialed in'? I used to work for Bosch and your car has a very sophisticated KE Jetronic System. There are some very important adjustments that need attending to every 30k Also the Oxygen sensors on this car are very touchy should be checked. ( They should be replaced every 60k) Most shops don't really know the German stuff. I would also do a fuel system pressure test while the car is under load. The KE Jetronic takes VERY POWERFUL fuel pumps and they could be getting weak. Also the Fuel Injection power relay can become intermittent. It should be replaced every 60k. Then look at your wires and cap and rotor. If they get worn, they can arc and cause a sudden lack of power. I have also replaced ignition coils on theses cars. They can burn up. Let me know how these inspections go.
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