Today I timed the cranking and it was closer to 10s !!! I Thought it was shorter. I tested the fuel pressure to the fuel distributor and it was fine. As soon as I shut the car off it dropped to 0! Is this my problem? Is it a simple fix? As for the held open valves, I will perform a leak down test to verify and get back with the data. Thanks.

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Chris Muc
Auto mechanic
'87 300E 325,000 km