1990 Olds Stalls/Bogs on acceleration

ecartman84 · 2008-09-04T04:12:18+00:00

This car is a 3.1 v6 it runs ok most of the time. But randomly out of nowhere it will bog and stall when you push the gas pedal. Then the next minute it will be fine and drive like that for awhile. Then out of nowhere the stalling and bogging happens again. What i have done so far is unhooked the exhaust thinking it was plugged, and it still did it. I unhooked and plugged the manifold where the EGR valve was and it still did it. I also sprayed carb cleaner in all 3 pintles and it never leaked into the center of the EGR valve.... I changed the ignition module and coil packs with known good ones from another car that was working fine. And it still did it. I then watched the fuel pressure while it was bogging and it held steady around 40 psi.... I swapped the map, and iac valve for the ones in the other car and it was the same.... I put the car in neutral and it still bogged..... I tried the injectors from the other car and it still did it.... I put a vacuum gauge on it and it has about 18 on the gauge so it doesn't seem like a vacuum leak. I also sprayed around looking for leaks with carb cleaner and found none just in case. I tested the tps, coolant temp and air temp sensors and they all worked as they should. I also put the crank sensor on my meter and it worked the way it should also.... I checked voltage at the battery and alternator and both stayed around 14v while accelerating.... I checked all the spark plugs and they are gapped properly and don't look wet or lean.... I really don't know what else to check for. Did i miss anything to look for? Is this a common problem with a fix that is know for this car? It is really un drivable at the moment because the stalling always happens at intersections after being stopped at a light. you go to accelerate and it will die, restarts fine then dies when you try to go.... but will run fine if it is just idling

Sep 04, 2008 Last reply: 4 years ago 42 Replies

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ozchristmusic 8 years ago

HAHAHAHAHA!!!! Nice one!

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ozchristmusic 8 years ago

So, what was the problem? My Son's 96 Olds Cut is doing the same thing. It's sporadic but it only takes the wrong time and place once...

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