hello all, 93 600 sel, has ran flawlessly since our purchase about 2 months and about 6000 miles ago. Better half washed the car in driveway yesterday, started and put in garage. The car won't start now; rolls over, but no go. I'm at work, just want some direction to look at after i check for spark tonite.

thanx

Mithra

The ignition system is doesn't like moisture at all. Even though the hood was closed moisture may have gotten into the dist caps thru condensation. I would start by making sure that the distributor caps aren't full of moisture.

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Thanx for the reply MB Doc.

I checked every fuse that i could find in the car, front main, rear box, and under the serious looking cover on the passenger side(4 10a fuses under another flap on the GM !?! module). All were fine, moved all to ensure contact, fuse for fuel is good, there is spark while rolling over... i used a old plug from who knows what, removed plug wire from front driver side cylinder, stuffed in old plug, rolled over... zap, zap.. The car feels like it wants to start, but no joy.. removed decorative covers over the distributors, each side, no apparent sign of moisture.... just read your reply, not 100% sure how to remove dist caps on this car...

many thanx in advance, mithra

I recently had the same problem with 92 600SEL. Check fuel pressure. On the top middle of the engine under the black rubber harness sleeve you'll find the hex cover (45 degr. towards driver side). Take it off and connect fuel pressure gauge. You can get it from SEARS for $40. When engine is not running and ignition ON the pressure should be around 56 psi. With engine running - 48 psi. Turn ignition OFF and make sure pressure holds for at least 30 min.
My problem was the pressure too high and engine was flooded.
In the trunk find the fuel pump fuse. If i remember correctly, upper right fuse. Take it out and crank the engine, while monitoring the fuel pressure to verify injectors. The pressure should gradually drop as injectors are being opened.
My engine actually started when the pressure was at zero. It ran for second or so and stopped. Next start I had my son to put the fuse back in as soon as engine started and engine kept running. New pressure regulator available here from the Fastline.
Good luck, Mike

Thanx guys..... did the local gran prix; found a set of new sparks...bosch...replaced old set..50 to 60 thou on old set, they all smelt gassy. once the new ones were installed, tried to start car .. no joy. Then i remembered mike indicating that he had pulled fuse for fuel pump.. pulled fuse, turned key, instant gratification. Replaced fuse, instant start, took for a 2 hour drive...very noticeable improvement in starting, driveability, and acceleration.... and the darn thing was fast before! also replaced air filters at the same time.

M.B. Doc, and Mike, many thanx for the suggestions and help,

Mithra.