car starts but wont run

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duce - 14 May 2006 14:47 GMT

I have a mercedes 190e ( 1992 ) manual saloon. It starts at very high revs
for approx 10seconds
Then the engine dies, a mechanic friend has looked at the problem but cannot
find the fault. He thinks it is an electrical problem.
I would be grateful for any suggestions
Regards
Duce

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Tiger - 14 May 2006 15:33 GMT

Again, I would start out by checking the fuel pump relay... make sure it is
not original to the car.

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Karl - 14 May 2006 15:55 GMT

Sounds like a massive vacuum leak. FI or carb engine?
Look for a broken brake booster vacuum line.

> I have a mercedes 190e ( 1992 ) manual saloon. It starts at very high revs
> for approx 10seconds
[quoted text clipped - 3 lines]
> Regards
> Duce

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T.G. Lambach - 14 May 2006 20:02 GMT

Motor is running on the extra fuel from the cold start injector or choke
PLUS the vacuum leak that Karl cited.

It quits after 10 seconds because that's when the "extra" fuel from the
cold start system stops being fed into the motor.

Without that extra fuel the vacuum leak snuffs the motor. That vacuum
leak, plus the extra cold start fuel, accounts for the high rpms.

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