Check the Fuel Pressure Regulator. Paul Borghese ----- Original Message ----- From: Tom Moritz <tmoritz@BMI.NET> Newsgroups: groupstudy.vanagon Sent: Saturday, May 13, 2000 5:18 PM Subject: Hesitation with acceleration
> I would appreciate some assistance in diagnosing a problem we are having > with our 90 Westy. We recently had the engine rebuilt due to a broken > cylinder head stud. Then engine runs great except for a hesitation when > accelerating. The problem is most evident when pulling away from a stop > light or stop sign. I sometimes feel it when I'm accelerating in traffic. > > Here's a decription of my perception of the problem. I'm stopped at a stop > light and it turns green. I'm a gentle driver so I depress the accelerator > peddle 1/8-1/4 full travel. The car just rolls forward as though I've > released the brakes but not given any gas. Then 1-1.5 seconds later the > car will start to respond to the accelerator input. Full accelerator input > results in normal rapid vehicle acceleration for that pedal position. > > I have the following suspicions and would appreciate any feed back on these > or other possible causes: > > 1) My airflow meter is failing and the vechicle is accelerating when the O2 > sensor corrects the mixture. > > 2) The bypass on the airflow meter is not set correctly. > > 3) I have a bad temp sensor (though this problem appears to be independent > of operating temperature. > > 4) Others? > > Thank you for any assistance, > > Tom Moritz > *********************************** > * * > * From the computer of: * > * Tom Moritz * > * * > *********************************** > --- |
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