engine dieing at idle (fuel pump?) '91 200 20v

Brett Dikeman brett at cloud9.net
Wed Jul 21 02:38:34 EDT 2004

At 9:30 PM -0700 7/20/04, Dave Defferding wrote:
>Symptoms are classic for a failed TBV (turbo bypass valve) to me.

Yup, same here.

>   Check
>Scott M's site regarding replacement.  Not too expensive and quite easy to
>Regarding likely fuel pump noise-- when in California in warm conditions
>(~90 or better), our pump buzzed as well.  I believe it's their gas mix down
>there, as symptoms disappear up in the Oregon/Washington area.  I've heard
>some have tried adding a small amount of auto trans fluid to the tank to
>help lube the pump.

I would not recommend that, as it could harm the O2 sensor and 
catalytic converter, as well as leave deposits behind.  It may do odd 
things to rubber seals as well.  Gas goes in the gas tank, nothing 

Fuel pump buzzing has nothing to do with how long they have to live- 
fellow listers have cars with pumps that have been practically 
screaming, for years.  After mine failed and was replaced, it buzzed 
slightly from day one.

"They that give up essential liberty to obtain temporary
safety deserve neither liberty nor safety." - Ben Franklin

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