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  #1  
Old 07-29-2003, 11:09 PM
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Location: Ottawa, Canada
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Question Vacuum Leak ? Hesitation after stop

Hello,

'88 260E

Today I noticed that when I started driving at any red light the engine hestiated so bad that it almost stalled. I had to keep pumping the gas pedal to finally keep it going. Once on the road it would accelerate well.

I have been seaching the forum and from what I read there might be vacuum leak somewhere. I say this because I read that applying the break (which I do before any red light) uses up so much vacuum.

Once I got home I checked the vacuum hoses that I know of and injectors seat for leaks listening through a plastic hose. The only place I noticed a hiss was the seat of fuel injector of cyl #2. (the other seals had no hissing at all). I have not re-sealed it yet but would this be the big culprit? Can someone please send me the location of all the vacuum hoses so I can check for more leaks.

Thanks a bunch in advance.

Zorin

'88 260E
'86 300 Manual
'84 944
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  #2  
Old 07-31-2003, 12:57 AM
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Question Fixed cylinder leak but..

I fixed the leak from cylinder 2 injector seat but the problem of hesitation after applying the break persists.
Any suggestion ?
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  #3  
Old 07-31-2003, 02:24 AM
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I had a similar problem. Ended up being a blown brake booster diaphram. You can check it by starting your car with radio and a/c off and depress brake pedal and listen carefully. If it is blown you will hear hissing sound coming from the brake pedal area.
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Old 07-31-2003, 11:00 AM
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To clear up one item, was everything working fine until today, when the symptoms began 'suddenly'? If so, then a vacuum system problem is likely your culprit. Most other causes would tend to develop gradually.

Steve
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  #5  
Old 07-31-2003, 10:35 PM
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Location: Ottawa, Canada
Posts: 126
Cool Problem fixed!

I replaced the ignition coil , that fixed the problem. The car also used to take more than one crank to start. It fixed that problem as well.

Thank you.
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Zorin

'88 Benz 420 SEL
'79 Porsche 911SC ('87 Carrera Engine)
'00 BMW 540 Sports Package
'99 Land Rover Discovery

86 300E - Manual (sold)
88 260E (sold)
84 944 (sold)
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