Question about Oldsmobile Toronado
I bought an 87 Oldsmobile Toronado a year ago and absolutely love it. About two weeks ago is started bogging down then downshifting rather abruptly while driving it on level ground which caused some concern. I changed the fuel filter hoping that would solve the problem which it didn't. Someone pointed me to the EGR valve but when i sprayed carburetor cleaner in and around it there was no change in the rpm as I would have expected. Then instead of just throwing money at it I started reading this forum. Now after several hours of reading I am quite perplexed. here are my symptoms. Car starts absolutely fine, but when pressing down the accelerator, at about 800-850 RPM'S it acts like its starving for fuel then dies. So it runs great at idle and it just goes to #&%) when given gas. Could someone please get me pointed in right direction. It has the 3.8L V-6 and is fuel injected. Also some other symptoms...the system monitor is quite frequently going off and the message "Electrical Problem" presents itself... and has done this since the day I bought it. I had the ECM replaced and changed the climate control module as was recommended by mechanic. The only thing all of that did was clear the service engine light. This is an awesome car and I want to fix it, but I need to be smart about it, so here I am asking for help. Also, every now and again while I'm driving, the car will make a "modem-like" squealing sound, and then the a/c display will black out. shortly after this comes the "ELECTRICAL PROBLEM" display and a default defroster. It will continue to chirp and squeal every now and then, until the display shows three dashed lines (---). After this, if I pat the dashboard directly above the a/c control, it will immediately come back showing that the a/c is at 75 degrees on defrost. I can turn off the a/c after this, but the whole cycle will begin again about 5 min later. I ordered an Oldsmobile service manual for this car, and will be able to get the trouble codes when it arrives but for now I am just ????? If anybody can get me going in the right direction it would be a big help. Thanks.
I WOULD HAVE THE FUEL PRESSURE TESTED. SOUNDS TO ME LIKE THE PUMP CANT KEEP UP WITH THE DEMAND.
ALSO CHECK THE INSIDE OF THE THROTTLE BODY FOR A CARBON PLUG WHERE THE EGR PORT ENTERS THE INTAKE MANIFOLD.
Posted on Jun 18, 2009
first thing i would do i would check fuel pressure if you have good fuel pressure then the next thing i would unbolt the exhaust from the exhaust manafold and then try to start engine if the engine starts up and runs fine then you have clogged up exhaust converters
terry - Master tech
Posted on Jun 18, 2009
Absolutly, Your idle control valve at the end of your fuel rail has a vacuum line and its sensitive to pressure changes. One way to double check that would be to hook everything up normally and pull that vacuum line off your idle control valve. Are the symptoms the same?
Posted on Sep 19, 2009
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