Thread: 560 Rough idle
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Old 05-25-2000, 11:33 AM
H. O. Tyler
Posts: n/a
Rough idle on 560 has been a problem ever since I purchased the car last August. I have been in the trouble shooting mode reading the engine manual several times..I had found a bad throttle switch and leaking EHA. Replaced them, but the idle was still rough. This last week I pulled out the injectors and in looking down the holes I saw broken tips on the nozzle holders. I replaced all eight nozzles holders, guides and vacuum hoses on top of the injectors. That fixed it !! The engine has a smooth idle and the acceleration improved considerable. All this for a little over $50.00. The car is 10 years old with 130K miles. All the engine rubber is quite brittle. I think this could be a source of problems for all the old CIS V-8's. Thought I would share this with everyone.

H. O. Tyler
90 560 SEL 130K
85 300 SD 62K
83 240 D 260K
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