Went out today and car would not start. After a while I got it to idle... it will idle somewhat roughly for some seconds and then shut off. Giving the car gas with pedal seems to have no effect. I sense no problem with timing or spark... seems to be fuel related.

The only thing that changed was a drop in temperature to about 20 degrees F.

Seems like a common type problem. Fuel pressure regulator seems OK. I pulled it and checked it out... no cracks on circuit board.

(Edit) I mean fuel relay was pulled not pressure regulator)

Could use some help on this one.

Thanks.

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Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra

Have you checked the fuel pump relay? You can jump 2 pins to t-shoot -- I cannot recall which one but you will find it with a search.

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David
1986 300E Anthracite + ECodes + MB Mileage Award

If it starts and runs fine when the temp outside goes above 32 F, you have enough water in the fuel to cause the lines or filter to fill with ice. Get some gas line antifreeze and add to the tank, should clear the problem up.

This isn't common, though, anymore.

Do you smell fuel at the tailpipe while cranking? If not, you have a fuel problem, if so, ignition.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!

My money is on gasline antifreeze.

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2007 C 230 Sport.

ejsharp,
Be sure to check the over voltage protection relay fuse. If the fuse is blown you would not get the needed fuel enrichment for cold starts. Many cars have the fuel system set so rich this only rears its ugly head when the temperature drops. Red ten amp fuse on the top of silver relay near the battery. Good luck

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Paul

Thanks Paul... I checked it out and the fuse is OK.

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Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra

I recall on this forum where someone had a similiar problem and they simply cleaned the air sensor which was very dirty and weighted down. It is worth checking it out.

Haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)

Could a bad over voltage protection relay cause the no-start problem? (with good fuse)

I hear a buzzing sound over by the glove box... could be a speaker or something.

(edit) I checked out the buzzing sound. It occurs when ignition is on... engine not running. It is comming from behind he panel directly under the glove box.

Earl

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Earl



1993 190E 2.3
2000 Toyota 4x4 Tundra