While in park car idles rough,changed plugs,boots the whole nine,drove car for about 3 miles still no power. Parked car smelled something burning,looked under car to see the converter red hot,does this mean that the converter is shot?
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www.2carpros.com/.../oldsmobile-alero-1999-oldsmobile-alero-stumble-... Sep 28, 2008 - Engine Performance problem 1999 Oldsmobile Alero 6 cyl Front ... Hey All, Had a very rough running Mazda 626 on LPG, engine code FP.
Jul 4, 2010 - Uploaded by GrindTimeAuto
1999 Oldsmobile Alero High Idle Fix ... How To Fix Or Prevent Stalling, Surging Or Rough Idle, Cleaning Throttle Body and MAF Sensor ...
Since it is an older vehicle, check under the dash for any "rigging" that might have been done over the years. Start at the battery and follow all electrical wires that lead into the dashboard and fuse panels and check for any frayed or split lines that might be causing you to have a short circuit somewhere. that's what it sounds like to me. Unless you have a huge sound system with some 15" woofers in the trunk you shouldn't be experiencing any power shortages.
COULD BE GROUND PROBLEMS OR THE TACH GOING BAD.EVEN THOUGH CAR SEEMS TO BE RUNNING GOOD IDLING GOOD.SOME TIMES A SPARK PLUG MISFIRE.CAUSING A LITTLE ROUGH IDLING CAUSING TACH NEEDLE TO GO CRAZY.I SEEN ALTERNATOR WITH VOLTAGE REGULATOR GOING BAD CAUSE A POWER SURGE CAUSING HEAD LIGHTS TO DIM A LITTLE THEN BRIGHT WHILE ENGINE IDLING.THIS WILL CAUSE TACH METER NEEDLE BOUNCE AROUND ALSO.
change plug and wire if its been a while most cars have 90000 miles platinum plugs in them.but the wires wear before plugs.so change plugs and wires.+clean fuel injectors .change fuel filter and air filter.if car still run rough your idling to low.have idling check .
I had this problem with my 1999 alero i took it apart and investigated it myself because i have been a mechanic for 25 years now but i had to replace the starter relay the whole ignition system and believe it or not new valves. After I replaced all of those my alero drove better then eer and the lights never went back on or any of the other lights....
If you can smell gas ONLY when the engine is running, then the gas didn't get
burned completely. It could be the combination of the computer, oxygen
sensors, and/or catalytic converter is going bad. If you could smell gas when
it's parked, you might want to take it to a mechanic to have your gas line
checked for leaks and for pressure test. Here's a website that talk a little about
gas smellwww.mycarsmellsbad.com good luck.